Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
4b2414d0 | 28 | #include <linux/quota.h> |
aff063e2 JK |
29 | |
30 | #include "f2fs.h" | |
31 | #include "node.h" | |
5ec4e49f | 32 | #include "segment.h" |
aff063e2 | 33 | #include "xattr.h" |
b59d0bae | 34 | #include "gc.h" |
db9f7c1a | 35 | #include "trace.h" |
aff063e2 | 36 | |
a2a4a7e4 NJ |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/f2fs.h> | |
39 | ||
aff063e2 JK |
40 | static struct kmem_cache *f2fs_inode_cachep; |
41 | ||
73faec4d | 42 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
43 | |
44 | char *fault_name[FAULT_MAX] = { | |
45 | [FAULT_KMALLOC] = "kmalloc", | |
628b3d14 | 46 | [FAULT_KVMALLOC] = "kvmalloc", |
c41f3cc3 | 47 | [FAULT_PAGE_ALLOC] = "page alloc", |
01eccef7 | 48 | [FAULT_PAGE_GET] = "page get", |
d62fe971 | 49 | [FAULT_ALLOC_BIO] = "alloc bio", |
cb78942b JK |
50 | [FAULT_ALLOC_NID] = "alloc nid", |
51 | [FAULT_ORPHAN] = "orphan", | |
52 | [FAULT_BLOCK] = "no more block", | |
53 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 54 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 55 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 56 | [FAULT_IO] = "IO error", |
0f348028 | 57 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 58 | }; |
08796897 | 59 | |
1ecc0c5c CY |
60 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
61 | unsigned int rate) | |
08796897 | 62 | { |
1ecc0c5c CY |
63 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
64 | ||
08796897 | 65 | if (rate) { |
1ecc0c5c CY |
66 | atomic_set(&ffi->inject_ops, 0); |
67 | ffi->inject_rate = rate; | |
68 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 69 | } else { |
1ecc0c5c | 70 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
71 | } |
72 | } | |
73faec4d JK |
73 | #endif |
74 | ||
2658e50d JK |
75 | /* f2fs-wide shrinker description */ |
76 | static struct shrinker f2fs_shrinker_info = { | |
77 | .scan_objects = f2fs_shrink_scan, | |
78 | .count_objects = f2fs_shrink_count, | |
79 | .seeks = DEFAULT_SEEKS, | |
80 | }; | |
81 | ||
aff063e2 | 82 | enum { |
696c018c | 83 | Opt_gc_background, |
aff063e2 | 84 | Opt_disable_roll_forward, |
2d834bf9 | 85 | Opt_norecovery, |
aff063e2 | 86 | Opt_discard, |
64058be9 | 87 | Opt_nodiscard, |
aff063e2 | 88 | Opt_noheap, |
7a20b8a6 | 89 | Opt_heap, |
4058c511 | 90 | Opt_user_xattr, |
aff063e2 | 91 | Opt_nouser_xattr, |
4058c511 | 92 | Opt_acl, |
aff063e2 JK |
93 | Opt_noacl, |
94 | Opt_active_logs, | |
95 | Opt_disable_ext_identify, | |
444c580f | 96 | Opt_inline_xattr, |
23cf7212 | 97 | Opt_noinline_xattr, |
6afc662e | 98 | Opt_inline_xattr_size, |
8274de77 | 99 | Opt_inline_data, |
5efd3c6f | 100 | Opt_inline_dentry, |
97c1794a | 101 | Opt_noinline_dentry, |
6b4afdd7 | 102 | Opt_flush_merge, |
69e9e427 | 103 | Opt_noflush_merge, |
0f7b2abd | 104 | Opt_nobarrier, |
d5053a34 | 105 | Opt_fastboot, |
89672159 | 106 | Opt_extent_cache, |
7daaea25 | 107 | Opt_noextent_cache, |
75342797 | 108 | Opt_noinline_data, |
343f40f0 | 109 | Opt_data_flush, |
7e65be49 | 110 | Opt_reserve_root, |
7c2e5963 JK |
111 | Opt_resgid, |
112 | Opt_resuid, | |
36abef4e | 113 | Opt_mode, |
ec91538d | 114 | Opt_io_size_bits, |
73faec4d | 115 | Opt_fault_injection, |
6d94c74a JK |
116 | Opt_lazytime, |
117 | Opt_nolazytime, | |
4b2414d0 CY |
118 | Opt_quota, |
119 | Opt_noquota, | |
0abd675e CY |
120 | Opt_usrquota, |
121 | Opt_grpquota, | |
5c57132e | 122 | Opt_prjquota, |
4b2414d0 CY |
123 | Opt_usrjquota, |
124 | Opt_grpjquota, | |
125 | Opt_prjjquota, | |
126 | Opt_offusrjquota, | |
127 | Opt_offgrpjquota, | |
128 | Opt_offprjjquota, | |
129 | Opt_jqfmt_vfsold, | |
130 | Opt_jqfmt_vfsv0, | |
131 | Opt_jqfmt_vfsv1, | |
0cdd3195 | 132 | Opt_whint, |
07939627 | 133 | Opt_alloc, |
aff063e2 JK |
134 | Opt_err, |
135 | }; | |
136 | ||
137 | static match_table_t f2fs_tokens = { | |
696c018c | 138 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 139 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 140 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 141 | {Opt_discard, "discard"}, |
64058be9 | 142 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 143 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 144 | {Opt_heap, "heap"}, |
4058c511 | 145 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 146 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 147 | {Opt_acl, "acl"}, |
aff063e2 JK |
148 | {Opt_noacl, "noacl"}, |
149 | {Opt_active_logs, "active_logs=%u"}, | |
150 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 151 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 152 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 153 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 154 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 155 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 156 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 157 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 158 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 159 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 160 | {Opt_fastboot, "fastboot"}, |
89672159 | 161 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 162 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 163 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 164 | {Opt_data_flush, "data_flush"}, |
7e65be49 | 165 | {Opt_reserve_root, "reserve_root=%u"}, |
7c2e5963 JK |
166 | {Opt_resgid, "resgid=%u"}, |
167 | {Opt_resuid, "resuid=%u"}, | |
36abef4e | 168 | {Opt_mode, "mode=%s"}, |
ec91538d | 169 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 170 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
171 | {Opt_lazytime, "lazytime"}, |
172 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
173 | {Opt_quota, "quota"}, |
174 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
175 | {Opt_usrquota, "usrquota"}, |
176 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 177 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
178 | {Opt_usrjquota, "usrjquota=%s"}, |
179 | {Opt_grpjquota, "grpjquota=%s"}, | |
180 | {Opt_prjjquota, "prjjquota=%s"}, | |
181 | {Opt_offusrjquota, "usrjquota="}, | |
182 | {Opt_offgrpjquota, "grpjquota="}, | |
183 | {Opt_offprjjquota, "prjjquota="}, | |
184 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
185 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
186 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
0cdd3195 | 187 | {Opt_whint, "whint_mode=%s"}, |
07939627 | 188 | {Opt_alloc, "alloc_mode=%s"}, |
aff063e2 JK |
189 | {Opt_err, NULL}, |
190 | }; | |
191 | ||
a07ef784 NJ |
192 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
193 | { | |
194 | struct va_format vaf; | |
195 | va_list args; | |
196 | ||
197 | va_start(args, fmt); | |
198 | vaf.fmt = fmt; | |
199 | vaf.va = &args; | |
a36c106d | 200 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
201 | va_end(args); |
202 | } | |
203 | ||
7e65be49 JK |
204 | static inline void limit_reserve_root(struct f2fs_sb_info *sbi) |
205 | { | |
206 | block_t limit = (sbi->user_block_count << 1) / 1000; | |
207 | ||
208 | /* limit is 0.2% */ | |
209 | if (test_opt(sbi, RESERVE_ROOT) && sbi->root_reserved_blocks > limit) { | |
210 | sbi->root_reserved_blocks = limit; | |
211 | f2fs_msg(sbi->sb, KERN_INFO, | |
212 | "Reduce reserved blocks for root = %u", | |
213 | sbi->root_reserved_blocks); | |
214 | } | |
7c2e5963 JK |
215 | if (!test_opt(sbi, RESERVE_ROOT) && |
216 | (!uid_eq(sbi->s_resuid, | |
217 | make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || | |
218 | !gid_eq(sbi->s_resgid, | |
219 | make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) | |
220 | f2fs_msg(sbi->sb, KERN_INFO, | |
221 | "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root", | |
222 | from_kuid_munged(&init_user_ns, sbi->s_resuid), | |
223 | from_kgid_munged(&init_user_ns, sbi->s_resgid)); | |
7e65be49 JK |
224 | } |
225 | ||
aff063e2 JK |
226 | static void init_once(void *foo) |
227 | { | |
228 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
229 | ||
aff063e2 JK |
230 | inode_init_once(&fi->vfs_inode); |
231 | } | |
232 | ||
4b2414d0 CY |
233 | #ifdef CONFIG_QUOTA |
234 | static const char * const quotatypes[] = INITQFNAMES; | |
235 | #define QTYPE2NAME(t) (quotatypes[t]) | |
236 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
237 | substring_t *args) | |
238 | { | |
239 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
240 | char *qname; | |
241 | int ret = -EINVAL; | |
242 | ||
243 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
244 | f2fs_msg(sb, KERN_ERR, | |
245 | "Cannot change journaled " | |
246 | "quota options when quota turned on"); | |
247 | return -EINVAL; | |
248 | } | |
ea676733 JK |
249 | if (f2fs_sb_has_quota_ino(sb)) { |
250 | f2fs_msg(sb, KERN_INFO, | |
251 | "QUOTA feature is enabled, so ignore qf_name"); | |
252 | return 0; | |
253 | } | |
254 | ||
4b2414d0 CY |
255 | qname = match_strdup(args); |
256 | if (!qname) { | |
257 | f2fs_msg(sb, KERN_ERR, | |
258 | "Not enough memory for storing quotafile name"); | |
259 | return -EINVAL; | |
260 | } | |
261 | if (sbi->s_qf_names[qtype]) { | |
262 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
263 | ret = 0; | |
264 | else | |
265 | f2fs_msg(sb, KERN_ERR, | |
266 | "%s quota file already specified", | |
267 | QTYPE2NAME(qtype)); | |
268 | goto errout; | |
269 | } | |
270 | if (strchr(qname, '/')) { | |
271 | f2fs_msg(sb, KERN_ERR, | |
272 | "quotafile must be on filesystem root"); | |
273 | goto errout; | |
274 | } | |
275 | sbi->s_qf_names[qtype] = qname; | |
276 | set_opt(sbi, QUOTA); | |
277 | return 0; | |
278 | errout: | |
279 | kfree(qname); | |
280 | return ret; | |
281 | } | |
282 | ||
283 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
284 | { | |
285 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
286 | ||
287 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
288 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
289 | " when quota turned on"); | |
290 | return -EINVAL; | |
291 | } | |
292 | kfree(sbi->s_qf_names[qtype]); | |
293 | sbi->s_qf_names[qtype] = NULL; | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
298 | { | |
299 | /* | |
300 | * We do the test below only for project quotas. 'usrquota' and | |
301 | * 'grpquota' mount options are allowed even without quota feature | |
302 | * to support legacy quotas in quota files. | |
303 | */ | |
304 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
305 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
306 | "Cannot enable project quota enforcement."); | |
307 | return -1; | |
308 | } | |
309 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
310 | sbi->s_qf_names[PRJQUOTA]) { | |
311 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
312 | clear_opt(sbi, USRQUOTA); | |
313 | ||
314 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
315 | clear_opt(sbi, GRPQUOTA); | |
316 | ||
317 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
318 | clear_opt(sbi, PRJQUOTA); | |
319 | ||
320 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
321 | test_opt(sbi, PRJQUOTA)) { | |
322 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
323 | "format mixing"); | |
324 | return -1; | |
325 | } | |
326 | ||
327 | if (!sbi->s_jquota_fmt) { | |
328 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
329 | "not specified"); | |
330 | return -1; | |
331 | } | |
332 | } | |
ea676733 JK |
333 | |
334 | if (f2fs_sb_has_quota_ino(sbi->sb) && sbi->s_jquota_fmt) { | |
335 | f2fs_msg(sbi->sb, KERN_INFO, | |
336 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
337 | sbi->s_jquota_fmt = 0; | |
338 | } | |
339 | if (f2fs_sb_has_quota_ino(sbi->sb) && sb_rdonly(sbi->sb)) { | |
340 | f2fs_msg(sbi->sb, KERN_INFO, | |
341 | "Filesystem with quota feature cannot be mounted RDWR " | |
342 | "without CONFIG_QUOTA"); | |
343 | return -1; | |
344 | } | |
4b2414d0 CY |
345 | return 0; |
346 | } | |
347 | #endif | |
348 | ||
696c018c NJ |
349 | static int parse_options(struct super_block *sb, char *options) |
350 | { | |
351 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 352 | struct request_queue *q; |
696c018c NJ |
353 | substring_t args[MAX_OPT_ARGS]; |
354 | char *p, *name; | |
355 | int arg = 0; | |
7c2e5963 JK |
356 | kuid_t uid; |
357 | kgid_t gid; | |
4b2414d0 CY |
358 | #ifdef CONFIG_QUOTA |
359 | int ret; | |
360 | #endif | |
696c018c NJ |
361 | |
362 | if (!options) | |
363 | return 0; | |
364 | ||
365 | while ((p = strsep(&options, ",")) != NULL) { | |
366 | int token; | |
367 | if (!*p) | |
368 | continue; | |
369 | /* | |
370 | * Initialize args struct so we know whether arg was | |
371 | * found; some options take optional arguments. | |
372 | */ | |
373 | args[0].to = args[0].from = NULL; | |
374 | token = match_token(p, f2fs_tokens, args); | |
375 | ||
376 | switch (token) { | |
377 | case Opt_gc_background: | |
378 | name = match_strdup(&args[0]); | |
379 | ||
380 | if (!name) | |
381 | return -ENOMEM; | |
6aefd93b | 382 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 383 | set_opt(sbi, BG_GC); |
6aefd93b JK |
384 | clear_opt(sbi, FORCE_FG_GC); |
385 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 386 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
387 | clear_opt(sbi, FORCE_FG_GC); |
388 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
389 | set_opt(sbi, BG_GC); | |
390 | set_opt(sbi, FORCE_FG_GC); | |
391 | } else { | |
696c018c NJ |
392 | kfree(name); |
393 | return -EINVAL; | |
394 | } | |
395 | kfree(name); | |
396 | break; | |
397 | case Opt_disable_roll_forward: | |
398 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
399 | break; | |
2d834bf9 JK |
400 | case Opt_norecovery: |
401 | /* this option mounts f2fs with ro */ | |
402 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
403 | if (!f2fs_readonly(sb)) | |
404 | return -EINVAL; | |
405 | break; | |
696c018c | 406 | case Opt_discard: |
09d54cdd CY |
407 | q = bdev_get_queue(sb->s_bdev); |
408 | if (blk_queue_discard(q)) { | |
409 | set_opt(sbi, DISCARD); | |
ccd31cb2 | 410 | } else if (!f2fs_sb_has_blkzoned(sb)) { |
09d54cdd CY |
411 | f2fs_msg(sb, KERN_WARNING, |
412 | "mounting with \"discard\" option, but " | |
413 | "the device does not support discard"); | |
414 | } | |
696c018c | 415 | break; |
64058be9 | 416 | case Opt_nodiscard: |
ccd31cb2 | 417 | if (f2fs_sb_has_blkzoned(sb)) { |
96ba2dec DLM |
418 | f2fs_msg(sb, KERN_WARNING, |
419 | "discard is required for zoned block devices"); | |
420 | return -EINVAL; | |
421 | } | |
64058be9 | 422 | clear_opt(sbi, DISCARD); |
487df616 | 423 | break; |
696c018c NJ |
424 | case Opt_noheap: |
425 | set_opt(sbi, NOHEAP); | |
426 | break; | |
7a20b8a6 JK |
427 | case Opt_heap: |
428 | clear_opt(sbi, NOHEAP); | |
429 | break; | |
696c018c | 430 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
431 | case Opt_user_xattr: |
432 | set_opt(sbi, XATTR_USER); | |
433 | break; | |
696c018c NJ |
434 | case Opt_nouser_xattr: |
435 | clear_opt(sbi, XATTR_USER); | |
436 | break; | |
444c580f JK |
437 | case Opt_inline_xattr: |
438 | set_opt(sbi, INLINE_XATTR); | |
439 | break; | |
23cf7212 CY |
440 | case Opt_noinline_xattr: |
441 | clear_opt(sbi, INLINE_XATTR); | |
442 | break; | |
6afc662e CY |
443 | case Opt_inline_xattr_size: |
444 | if (args->from && match_int(args, &arg)) | |
445 | return -EINVAL; | |
446 | set_opt(sbi, INLINE_XATTR_SIZE); | |
447 | sbi->inline_xattr_size = arg; | |
448 | break; | |
696c018c | 449 | #else |
4058c511 KA |
450 | case Opt_user_xattr: |
451 | f2fs_msg(sb, KERN_INFO, | |
452 | "user_xattr options not supported"); | |
453 | break; | |
696c018c NJ |
454 | case Opt_nouser_xattr: |
455 | f2fs_msg(sb, KERN_INFO, | |
456 | "nouser_xattr options not supported"); | |
457 | break; | |
444c580f JK |
458 | case Opt_inline_xattr: |
459 | f2fs_msg(sb, KERN_INFO, | |
460 | "inline_xattr options not supported"); | |
461 | break; | |
23cf7212 CY |
462 | case Opt_noinline_xattr: |
463 | f2fs_msg(sb, KERN_INFO, | |
464 | "noinline_xattr options not supported"); | |
465 | break; | |
696c018c NJ |
466 | #endif |
467 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
468 | case Opt_acl: |
469 | set_opt(sbi, POSIX_ACL); | |
470 | break; | |
696c018c NJ |
471 | case Opt_noacl: |
472 | clear_opt(sbi, POSIX_ACL); | |
473 | break; | |
474 | #else | |
4058c511 KA |
475 | case Opt_acl: |
476 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
477 | break; | |
696c018c NJ |
478 | case Opt_noacl: |
479 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
480 | break; | |
481 | #endif | |
482 | case Opt_active_logs: | |
483 | if (args->from && match_int(args, &arg)) | |
484 | return -EINVAL; | |
485 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
486 | return -EINVAL; | |
487 | sbi->active_logs = arg; | |
488 | break; | |
489 | case Opt_disable_ext_identify: | |
490 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
491 | break; | |
8274de77 HL |
492 | case Opt_inline_data: |
493 | set_opt(sbi, INLINE_DATA); | |
494 | break; | |
5efd3c6f CY |
495 | case Opt_inline_dentry: |
496 | set_opt(sbi, INLINE_DENTRY); | |
497 | break; | |
97c1794a CY |
498 | case Opt_noinline_dentry: |
499 | clear_opt(sbi, INLINE_DENTRY); | |
500 | break; | |
6b4afdd7 JK |
501 | case Opt_flush_merge: |
502 | set_opt(sbi, FLUSH_MERGE); | |
503 | break; | |
69e9e427 JK |
504 | case Opt_noflush_merge: |
505 | clear_opt(sbi, FLUSH_MERGE); | |
506 | break; | |
0f7b2abd JK |
507 | case Opt_nobarrier: |
508 | set_opt(sbi, NOBARRIER); | |
509 | break; | |
d5053a34 JK |
510 | case Opt_fastboot: |
511 | set_opt(sbi, FASTBOOT); | |
512 | break; | |
89672159 CY |
513 | case Opt_extent_cache: |
514 | set_opt(sbi, EXTENT_CACHE); | |
515 | break; | |
7daaea25 JK |
516 | case Opt_noextent_cache: |
517 | clear_opt(sbi, EXTENT_CACHE); | |
518 | break; | |
75342797 WL |
519 | case Opt_noinline_data: |
520 | clear_opt(sbi, INLINE_DATA); | |
521 | break; | |
343f40f0 CY |
522 | case Opt_data_flush: |
523 | set_opt(sbi, DATA_FLUSH); | |
524 | break; | |
7e65be49 JK |
525 | case Opt_reserve_root: |
526 | if (args->from && match_int(args, &arg)) | |
527 | return -EINVAL; | |
528 | if (test_opt(sbi, RESERVE_ROOT)) { | |
529 | f2fs_msg(sb, KERN_INFO, | |
530 | "Preserve previous reserve_root=%u", | |
531 | sbi->root_reserved_blocks); | |
532 | } else { | |
533 | sbi->root_reserved_blocks = arg; | |
534 | set_opt(sbi, RESERVE_ROOT); | |
535 | } | |
536 | break; | |
7c2e5963 JK |
537 | case Opt_resuid: |
538 | if (args->from && match_int(args, &arg)) | |
539 | return -EINVAL; | |
540 | uid = make_kuid(current_user_ns(), arg); | |
541 | if (!uid_valid(uid)) { | |
542 | f2fs_msg(sb, KERN_ERR, | |
543 | "Invalid uid value %d", arg); | |
544 | return -EINVAL; | |
545 | } | |
546 | sbi->s_resuid = uid; | |
547 | break; | |
548 | case Opt_resgid: | |
549 | if (args->from && match_int(args, &arg)) | |
550 | return -EINVAL; | |
551 | gid = make_kgid(current_user_ns(), arg); | |
552 | if (!gid_valid(gid)) { | |
553 | f2fs_msg(sb, KERN_ERR, | |
554 | "Invalid gid value %d", arg); | |
555 | return -EINVAL; | |
556 | } | |
557 | sbi->s_resgid = gid; | |
558 | break; | |
36abef4e JK |
559 | case Opt_mode: |
560 | name = match_strdup(&args[0]); | |
561 | ||
562 | if (!name) | |
563 | return -ENOMEM; | |
564 | if (strlen(name) == 8 && | |
565 | !strncmp(name, "adaptive", 8)) { | |
ccd31cb2 | 566 | if (f2fs_sb_has_blkzoned(sb)) { |
3adc57e9 DLM |
567 | f2fs_msg(sb, KERN_WARNING, |
568 | "adaptive mode is not allowed with " | |
569 | "zoned block device feature"); | |
570 | kfree(name); | |
571 | return -EINVAL; | |
572 | } | |
52763a4b | 573 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
574 | } else if (strlen(name) == 3 && |
575 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 576 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
577 | } else { |
578 | kfree(name); | |
579 | return -EINVAL; | |
580 | } | |
581 | kfree(name); | |
582 | break; | |
ec91538d JK |
583 | case Opt_io_size_bits: |
584 | if (args->from && match_int(args, &arg)) | |
585 | return -EINVAL; | |
586 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
587 | f2fs_msg(sb, KERN_WARNING, | |
588 | "Not support %d, larger than %d", | |
589 | 1 << arg, BIO_MAX_PAGES); | |
590 | return -EINVAL; | |
591 | } | |
592 | sbi->write_io_size_bits = arg; | |
593 | break; | |
73faec4d JK |
594 | case Opt_fault_injection: |
595 | if (args->from && match_int(args, &arg)) | |
596 | return -EINVAL; | |
597 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 598 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 599 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
600 | #else |
601 | f2fs_msg(sb, KERN_INFO, | |
602 | "FAULT_INJECTION was not selected"); | |
603 | #endif | |
604 | break; | |
6d94c74a | 605 | case Opt_lazytime: |
1751e8a6 | 606 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
607 | break; |
608 | case Opt_nolazytime: | |
1751e8a6 | 609 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 610 | break; |
0abd675e | 611 | #ifdef CONFIG_QUOTA |
4b2414d0 | 612 | case Opt_quota: |
0abd675e CY |
613 | case Opt_usrquota: |
614 | set_opt(sbi, USRQUOTA); | |
615 | break; | |
616 | case Opt_grpquota: | |
617 | set_opt(sbi, GRPQUOTA); | |
618 | break; | |
5c57132e CY |
619 | case Opt_prjquota: |
620 | set_opt(sbi, PRJQUOTA); | |
621 | break; | |
4b2414d0 CY |
622 | case Opt_usrjquota: |
623 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
624 | if (ret) | |
625 | return ret; | |
626 | break; | |
627 | case Opt_grpjquota: | |
628 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
629 | if (ret) | |
630 | return ret; | |
631 | break; | |
632 | case Opt_prjjquota: | |
633 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
634 | if (ret) | |
635 | return ret; | |
636 | break; | |
637 | case Opt_offusrjquota: | |
638 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
639 | if (ret) | |
640 | return ret; | |
641 | break; | |
642 | case Opt_offgrpjquota: | |
643 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
644 | if (ret) | |
645 | return ret; | |
646 | break; | |
647 | case Opt_offprjjquota: | |
648 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
649 | if (ret) | |
650 | return ret; | |
651 | break; | |
652 | case Opt_jqfmt_vfsold: | |
653 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
654 | break; | |
655 | case Opt_jqfmt_vfsv0: | |
656 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
657 | break; | |
658 | case Opt_jqfmt_vfsv1: | |
659 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
660 | break; | |
661 | case Opt_noquota: | |
662 | clear_opt(sbi, QUOTA); | |
663 | clear_opt(sbi, USRQUOTA); | |
664 | clear_opt(sbi, GRPQUOTA); | |
665 | clear_opt(sbi, PRJQUOTA); | |
666 | break; | |
0abd675e | 667 | #else |
4b2414d0 | 668 | case Opt_quota: |
0abd675e CY |
669 | case Opt_usrquota: |
670 | case Opt_grpquota: | |
5c57132e | 671 | case Opt_prjquota: |
4b2414d0 CY |
672 | case Opt_usrjquota: |
673 | case Opt_grpjquota: | |
674 | case Opt_prjjquota: | |
675 | case Opt_offusrjquota: | |
676 | case Opt_offgrpjquota: | |
677 | case Opt_offprjjquota: | |
678 | case Opt_jqfmt_vfsold: | |
679 | case Opt_jqfmt_vfsv0: | |
680 | case Opt_jqfmt_vfsv1: | |
681 | case Opt_noquota: | |
0abd675e CY |
682 | f2fs_msg(sb, KERN_INFO, |
683 | "quota operations not supported"); | |
684 | break; | |
685 | #endif | |
0cdd3195 HL |
686 | case Opt_whint: |
687 | name = match_strdup(&args[0]); | |
688 | if (!name) | |
689 | return -ENOMEM; | |
690 | if (strlen(name) == 10 && | |
691 | !strncmp(name, "user-based", 10)) { | |
692 | sbi->whint_mode = WHINT_MODE_USER; | |
693 | } else if (strlen(name) == 3 && | |
694 | !strncmp(name, "off", 3)) { | |
695 | sbi->whint_mode = WHINT_MODE_OFF; | |
f2e703f9 HL |
696 | } else if (strlen(name) == 8 && |
697 | !strncmp(name, "fs-based", 8)) { | |
698 | sbi->whint_mode = WHINT_MODE_FS; | |
0cdd3195 HL |
699 | } else { |
700 | kfree(name); | |
701 | return -EINVAL; | |
702 | } | |
703 | kfree(name); | |
704 | break; | |
07939627 JK |
705 | case Opt_alloc: |
706 | name = match_strdup(&args[0]); | |
707 | if (!name) | |
708 | return -ENOMEM; | |
709 | ||
710 | if (strlen(name) == 7 && | |
711 | !strncmp(name, "default", 7)) { | |
712 | sbi->alloc_mode = ALLOC_MODE_DEFAULT; | |
713 | } else if (strlen(name) == 5 && | |
714 | !strncmp(name, "reuse", 5)) { | |
715 | sbi->alloc_mode = ALLOC_MODE_REUSE; | |
716 | } else { | |
717 | kfree(name); | |
718 | return -EINVAL; | |
719 | } | |
720 | kfree(name); | |
721 | break; | |
696c018c NJ |
722 | default: |
723 | f2fs_msg(sb, KERN_ERR, | |
724 | "Unrecognized mount option \"%s\" or missing value", | |
725 | p); | |
726 | return -EINVAL; | |
727 | } | |
728 | } | |
4b2414d0 CY |
729 | #ifdef CONFIG_QUOTA |
730 | if (f2fs_check_quota_options(sbi)) | |
731 | return -EINVAL; | |
732 | #endif | |
ec91538d JK |
733 | |
734 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
735 | f2fs_msg(sb, KERN_ERR, | |
736 | "Should set mode=lfs with %uKB-sized IO", | |
737 | F2FS_IO_SIZE_KB(sbi)); | |
738 | return -EINVAL; | |
739 | } | |
6afc662e CY |
740 | |
741 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
4d817ae0 CY |
742 | if (!f2fs_sb_has_extra_attr(sb) || |
743 | !f2fs_sb_has_flexible_inline_xattr(sb)) { | |
744 | f2fs_msg(sb, KERN_ERR, | |
745 | "extra_attr or flexible_inline_xattr " | |
746 | "feature is off"); | |
747 | return -EINVAL; | |
748 | } | |
6afc662e CY |
749 | if (!test_opt(sbi, INLINE_XATTR)) { |
750 | f2fs_msg(sb, KERN_ERR, | |
751 | "inline_xattr_size option should be " | |
752 | "set with inline_xattr option"); | |
753 | return -EINVAL; | |
754 | } | |
755 | if (!sbi->inline_xattr_size || | |
756 | sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE - | |
757 | F2FS_TOTAL_EXTRA_ATTR_SIZE - | |
758 | DEF_INLINE_RESERVED_SIZE - | |
759 | DEF_MIN_INLINE_SIZE) { | |
760 | f2fs_msg(sb, KERN_ERR, | |
761 | "inline xattr size is out of range"); | |
762 | return -EINVAL; | |
763 | } | |
764 | } | |
0cdd3195 HL |
765 | |
766 | /* Not pass down write hints if the number of active logs is lesser | |
767 | * than NR_CURSEG_TYPE. | |
768 | */ | |
769 | if (sbi->active_logs != NR_CURSEG_TYPE) | |
770 | sbi->whint_mode = WHINT_MODE_OFF; | |
696c018c NJ |
771 | return 0; |
772 | } | |
773 | ||
aff063e2 JK |
774 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
775 | { | |
776 | struct f2fs_inode_info *fi; | |
777 | ||
a0acdfe0 | 778 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
779 | if (!fi) |
780 | return NULL; | |
781 | ||
782 | init_once((void *) fi); | |
783 | ||
434720fa | 784 | /* Initialize f2fs-specific inode info */ |
204706c7 | 785 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
786 | fi->i_current_depth = 1; |
787 | fi->i_advise = 0; | |
d928bfbf | 788 | init_rwsem(&fi->i_sem); |
2710fd7e | 789 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 790 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 791 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
792 | INIT_LIST_HEAD(&fi->inmem_pages); |
793 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
794 | init_rwsem(&fi->dio_rwsem[READ]); |
795 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 796 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 797 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 798 | |
0abd675e CY |
799 | #ifdef CONFIG_QUOTA |
800 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
801 | fi->i_reserved_quota = 0; | |
802 | #endif | |
ab9fa662 JK |
803 | /* Will be used by directory only */ |
804 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 805 | |
aff063e2 JK |
806 | return &fi->vfs_inode; |
807 | } | |
808 | ||
531ad7d5 JK |
809 | static int f2fs_drop_inode(struct inode *inode) |
810 | { | |
b8d96a30 | 811 | int ret; |
531ad7d5 JK |
812 | /* |
813 | * This is to avoid a deadlock condition like below. | |
814 | * writeback_single_inode(inode) | |
815 | * - f2fs_write_data_page | |
816 | * - f2fs_gc -> iput -> evict | |
817 | * - inode_wait_for_writeback(inode) | |
818 | */ | |
0f18b462 | 819 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 820 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
821 | /* to avoid evict_inode call simultaneously */ |
822 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
823 | spin_unlock(&inode->i_lock); |
824 | ||
825 | /* some remained atomic pages should discarded */ | |
826 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 827 | drop_inmem_pages(inode); |
06e1bc05 | 828 | |
3e72f721 JK |
829 | /* should remain fi->extent_tree for writepage */ |
830 | f2fs_destroy_extent_node(inode); | |
831 | ||
06e1bc05 | 832 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 833 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
834 | |
835 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 836 | f2fs_truncate(inode); |
06e1bc05 JK |
837 | |
838 | sb_end_intwrite(inode->i_sb); | |
839 | ||
06e1bc05 | 840 | spin_lock(&inode->i_lock); |
3e72f721 | 841 | atomic_dec(&inode->i_count); |
06e1bc05 | 842 | } |
b8d96a30 | 843 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 844 | return 0; |
06e1bc05 | 845 | } |
b8d96a30 HP |
846 | ret = generic_drop_inode(inode); |
847 | trace_f2fs_drop_inode(inode, ret); | |
848 | return ret; | |
531ad7d5 JK |
849 | } |
850 | ||
7c45729a | 851 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 852 | { |
0f18b462 | 853 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 854 | int ret = 0; |
0f18b462 | 855 | |
0f18b462 JK |
856 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
857 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
858 | ret = 1; |
859 | } else { | |
860 | set_inode_flag(inode, FI_DIRTY_INODE); | |
861 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 862 | } |
7c45729a JK |
863 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
864 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 865 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
866 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
867 | } | |
338bbfa0 | 868 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 869 | return ret; |
0f18b462 JK |
870 | } |
871 | ||
872 | void f2fs_inode_synced(struct inode *inode) | |
873 | { | |
874 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
875 | ||
876 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
877 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
878 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
879 | return; | |
880 | } | |
7c45729a JK |
881 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
882 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
883 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
884 | } | |
0f18b462 | 885 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 886 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 887 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 888 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
889 | } |
890 | ||
b56ab837 JK |
891 | /* |
892 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
893 | * | |
894 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
895 | */ | |
896 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
897 | { | |
898 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
899 | ||
900 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
901 | inode->i_ino == F2FS_META_INO(sbi)) | |
902 | return; | |
903 | ||
904 | if (flags == I_DIRTY_TIME) | |
905 | return; | |
906 | ||
907 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
908 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
909 | ||
7c45729a | 910 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
911 | } |
912 | ||
aff063e2 JK |
913 | static void f2fs_i_callback(struct rcu_head *head) |
914 | { | |
915 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
916 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
917 | } | |
918 | ||
25ca923b | 919 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
920 | { |
921 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
922 | } | |
923 | ||
523be8a6 JK |
924 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
925 | { | |
41382ec4 | 926 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 927 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
928 | } |
929 | ||
3c62be17 JK |
930 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
931 | { | |
932 | int i; | |
933 | ||
934 | for (i = 0; i < sbi->s_ndevs; i++) { | |
935 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
936 | #ifdef CONFIG_BLK_DEV_ZONED | |
937 | kfree(FDEV(i).blkz_type); | |
938 | #endif | |
939 | } | |
940 | kfree(sbi->devs); | |
941 | } | |
942 | ||
aff063e2 JK |
943 | static void f2fs_put_super(struct super_block *sb) |
944 | { | |
945 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 946 | int i; |
cf5c759f | 947 | bool dropped; |
aff063e2 | 948 | |
0abd675e | 949 | f2fs_quota_off_umount(sb); |
aff063e2 | 950 | |
2658e50d JK |
951 | /* prevent remaining shrinker jobs */ |
952 | mutex_lock(&sbi->umount_mutex); | |
953 | ||
85dc2f2c JK |
954 | /* |
955 | * We don't need to do checkpoint when superblock is clean. | |
956 | * But, the previous checkpoint was not done by umount, it needs to do | |
957 | * clean checkpoint again. | |
958 | */ | |
caf0047e | 959 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 960 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
961 | struct cp_control cpc = { |
962 | .reason = CP_UMOUNT, | |
963 | }; | |
964 | write_checkpoint(sbi, &cpc); | |
965 | } | |
aff063e2 | 966 | |
4e6a8d9b | 967 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 968 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 969 | |
cf5c759f | 970 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
971 | struct cp_control cpc = { |
972 | .reason = CP_UMOUNT | CP_TRIMMED, | |
973 | }; | |
974 | write_checkpoint(sbi, &cpc); | |
975 | } | |
976 | ||
eca616f8 JK |
977 | /* write_checkpoint can update stat informaion */ |
978 | f2fs_destroy_stats(sbi); | |
979 | ||
cf779cab JK |
980 | /* |
981 | * normally superblock is clean, so we need to release this. | |
982 | * In addition, EIO will skip do checkpoint, we need this as well. | |
983 | */ | |
74ef9241 | 984 | release_ino_entry(sbi, true); |
6f12ac25 | 985 | |
2658e50d JK |
986 | f2fs_leave_shrinker(sbi); |
987 | mutex_unlock(&sbi->umount_mutex); | |
988 | ||
17c19120 | 989 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 990 | f2fs_flush_merged_writes(sbi); |
17c19120 | 991 | |
aff063e2 JK |
992 | iput(sbi->node_inode); |
993 | iput(sbi->meta_inode); | |
994 | ||
995 | /* destroy f2fs internal modules */ | |
996 | destroy_node_manager(sbi); | |
997 | destroy_segment_manager(sbi); | |
998 | ||
999 | kfree(sbi->ckpt); | |
a398101a | 1000 | |
dc6b2055 | 1001 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
1002 | |
1003 | sb->s_fs_info = NULL; | |
43b6573b KM |
1004 | if (sbi->s_chksum_driver) |
1005 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 1006 | kfree(sbi->raw_super); |
523be8a6 | 1007 | |
3c62be17 | 1008 | destroy_device_list(sbi); |
b6895e8f | 1009 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
1010 | #ifdef CONFIG_QUOTA |
1011 | for (i = 0; i < MAXQUOTAS; i++) | |
1012 | kfree(sbi->s_qf_names[i]); | |
1013 | #endif | |
523be8a6 | 1014 | destroy_percpu_info(sbi); |
a912b54d JK |
1015 | for (i = 0; i < NR_PAGE_TYPE; i++) |
1016 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
1017 | kfree(sbi); |
1018 | } | |
1019 | ||
1020 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
1021 | { | |
1022 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 1023 | int err = 0; |
aff063e2 | 1024 | |
1f227a3e JK |
1025 | if (unlikely(f2fs_cp_error(sbi))) |
1026 | return 0; | |
1027 | ||
a2a4a7e4 NJ |
1028 | trace_f2fs_sync_fs(sb, sync); |
1029 | ||
4b2414d0 CY |
1030 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
1031 | return -EAGAIN; | |
1032 | ||
b7473754 | 1033 | if (sync) { |
d5053a34 JK |
1034 | struct cp_control cpc; |
1035 | ||
119ee914 JK |
1036 | cpc.reason = __get_cp_reason(sbi); |
1037 | ||
b7473754 | 1038 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 1039 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 1040 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 1041 | } |
05ca3632 | 1042 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 1043 | |
c34f42e2 | 1044 | return err; |
aff063e2 JK |
1045 | } |
1046 | ||
d6212a5f CL |
1047 | static int f2fs_freeze(struct super_block *sb) |
1048 | { | |
77888c1e | 1049 | if (f2fs_readonly(sb)) |
d6212a5f CL |
1050 | return 0; |
1051 | ||
b4b9d34c JK |
1052 | /* IO error happened before */ |
1053 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
1054 | return -EIO; | |
1055 | ||
1056 | /* must be clean, since sync_filesystem() was already called */ | |
1057 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
1058 | return -EINVAL; | |
1059 | return 0; | |
d6212a5f CL |
1060 | } |
1061 | ||
1062 | static int f2fs_unfreeze(struct super_block *sb) | |
1063 | { | |
1064 | return 0; | |
1065 | } | |
1066 | ||
ddc34e32 CY |
1067 | #ifdef CONFIG_QUOTA |
1068 | static int f2fs_statfs_project(struct super_block *sb, | |
1069 | kprojid_t projid, struct kstatfs *buf) | |
1070 | { | |
1071 | struct kqid qid; | |
1072 | struct dquot *dquot; | |
1073 | u64 limit; | |
1074 | u64 curblock; | |
1075 | ||
1076 | qid = make_kqid_projid(projid); | |
1077 | dquot = dqget(sb, qid); | |
1078 | if (IS_ERR(dquot)) | |
1079 | return PTR_ERR(dquot); | |
1080 | spin_lock(&dq_data_lock); | |
1081 | ||
1082 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
1083 | dquot->dq_dqb.dqb_bsoftlimit : | |
1084 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
1085 | if (limit && buf->f_blocks > limit) { | |
1086 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
1087 | buf->f_blocks = limit; | |
1088 | buf->f_bfree = buf->f_bavail = | |
1089 | (buf->f_blocks > curblock) ? | |
1090 | (buf->f_blocks - curblock) : 0; | |
1091 | } | |
1092 | ||
1093 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
1094 | dquot->dq_dqb.dqb_isoftlimit : | |
1095 | dquot->dq_dqb.dqb_ihardlimit; | |
1096 | if (limit && buf->f_files > limit) { | |
1097 | buf->f_files = limit; | |
1098 | buf->f_ffree = | |
1099 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
1100 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
1101 | } | |
1102 | ||
1103 | spin_unlock(&dq_data_lock); | |
1104 | dqput(dquot); | |
1105 | return 0; | |
1106 | } | |
1107 | #endif | |
1108 | ||
aff063e2 JK |
1109 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1110 | { | |
1111 | struct super_block *sb = dentry->d_sb; | |
1112 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1113 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
f66c027e | 1114 | block_t total_count, user_block_count, start_count; |
0cc091d0 | 1115 | u64 avail_node_count; |
aff063e2 JK |
1116 | |
1117 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1118 | user_block_count = sbi->user_block_count; | |
1119 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
aff063e2 JK |
1120 | buf->f_type = F2FS_SUPER_MAGIC; |
1121 | buf->f_bsize = sbi->blocksize; | |
1122 | ||
1123 | buf->f_blocks = total_count - start_count; | |
f66c027e | 1124 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1125 | sbi->current_reserved_blocks; |
7e65be49 JK |
1126 | if (buf->f_bfree > sbi->root_reserved_blocks) |
1127 | buf->f_bavail = buf->f_bfree - sbi->root_reserved_blocks; | |
1128 | else | |
1129 | buf->f_bavail = 0; | |
aff063e2 | 1130 | |
292c196a CY |
1131 | avail_node_count = sbi->total_node_count - sbi->nquota_files - |
1132 | F2FS_RESERVED_NODE_NUM; | |
0cc091d0 JK |
1133 | |
1134 | if (avail_node_count > user_block_count) { | |
1135 | buf->f_files = user_block_count; | |
1136 | buf->f_ffree = buf->f_bavail; | |
1137 | } else { | |
1138 | buf->f_files = avail_node_count; | |
1139 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1140 | buf->f_bavail); | |
1141 | } | |
aff063e2 | 1142 | |
5a20d339 | 1143 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1144 | buf->f_fsid.val[0] = (u32)id; |
1145 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1146 | ||
ddc34e32 CY |
1147 | #ifdef CONFIG_QUOTA |
1148 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1149 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1150 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1151 | } | |
1152 | #endif | |
aff063e2 JK |
1153 | return 0; |
1154 | } | |
1155 | ||
4b2414d0 CY |
1156 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1157 | struct super_block *sb) | |
1158 | { | |
1159 | #ifdef CONFIG_QUOTA | |
1160 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1161 | ||
1162 | if (sbi->s_jquota_fmt) { | |
1163 | char *fmtname = ""; | |
1164 | ||
1165 | switch (sbi->s_jquota_fmt) { | |
1166 | case QFMT_VFS_OLD: | |
1167 | fmtname = "vfsold"; | |
1168 | break; | |
1169 | case QFMT_VFS_V0: | |
1170 | fmtname = "vfsv0"; | |
1171 | break; | |
1172 | case QFMT_VFS_V1: | |
1173 | fmtname = "vfsv1"; | |
1174 | break; | |
1175 | } | |
1176 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1177 | } | |
1178 | ||
1179 | if (sbi->s_qf_names[USRQUOTA]) | |
1180 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1181 | ||
1182 | if (sbi->s_qf_names[GRPQUOTA]) | |
1183 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1184 | ||
1185 | if (sbi->s_qf_names[PRJQUOTA]) | |
1186 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1187 | #endif | |
1188 | } | |
1189 | ||
aff063e2 JK |
1190 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1191 | { | |
1192 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1193 | ||
6aefd93b JK |
1194 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1195 | if (test_opt(sbi, FORCE_FG_GC)) | |
1196 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1197 | else | |
1198 | seq_printf(seq, ",background_gc=%s", "on"); | |
1199 | } else { | |
696c018c | 1200 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1201 | } |
aff063e2 JK |
1202 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1203 | seq_puts(seq, ",disable_roll_forward"); | |
1204 | if (test_opt(sbi, DISCARD)) | |
1205 | seq_puts(seq, ",discard"); | |
1206 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1207 | seq_puts(seq, ",no_heap"); |
1208 | else | |
1209 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1210 | #ifdef CONFIG_F2FS_FS_XATTR |
1211 | if (test_opt(sbi, XATTR_USER)) | |
1212 | seq_puts(seq, ",user_xattr"); | |
1213 | else | |
1214 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1215 | if (test_opt(sbi, INLINE_XATTR)) |
1216 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1217 | else |
1218 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1219 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1220 | seq_printf(seq, ",inline_xattr_size=%u", | |
1221 | sbi->inline_xattr_size); | |
aff063e2 JK |
1222 | #endif |
1223 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1224 | if (test_opt(sbi, POSIX_ACL)) | |
1225 | seq_puts(seq, ",acl"); | |
1226 | else | |
1227 | seq_puts(seq, ",noacl"); | |
1228 | #endif | |
1229 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1230 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1231 | if (test_opt(sbi, INLINE_DATA)) |
1232 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1233 | else |
1234 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1235 | if (test_opt(sbi, INLINE_DENTRY)) |
1236 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1237 | else |
1238 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1239 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1240 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1241 | if (test_opt(sbi, NOBARRIER)) |
1242 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1243 | if (test_opt(sbi, FASTBOOT)) |
1244 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1245 | if (test_opt(sbi, EXTENT_CACHE)) |
1246 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1247 | else |
1248 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1249 | if (test_opt(sbi, DATA_FLUSH)) |
1250 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1251 | |
1252 | seq_puts(seq, ",mode="); | |
1253 | if (test_opt(sbi, ADAPTIVE)) | |
1254 | seq_puts(seq, "adaptive"); | |
1255 | else if (test_opt(sbi, LFS)) | |
1256 | seq_puts(seq, "lfs"); | |
aff063e2 | 1257 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
7e65be49 | 1258 | if (test_opt(sbi, RESERVE_ROOT)) |
7c2e5963 JK |
1259 | seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u", |
1260 | sbi->root_reserved_blocks, | |
1261 | from_kuid_munged(&init_user_ns, sbi->s_resuid), | |
1262 | from_kgid_munged(&init_user_ns, sbi->s_resgid)); | |
ec91538d JK |
1263 | if (F2FS_IO_SIZE_BITS(sbi)) |
1264 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1265 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1266 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1267 | seq_printf(seq, ",fault_injection=%u", |
1268 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1269 | #endif |
0abd675e | 1270 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1271 | if (test_opt(sbi, QUOTA)) |
1272 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1273 | if (test_opt(sbi, USRQUOTA)) |
1274 | seq_puts(seq, ",usrquota"); | |
1275 | if (test_opt(sbi, GRPQUOTA)) | |
1276 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1277 | if (test_opt(sbi, PRJQUOTA)) |
1278 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1279 | #endif |
4b2414d0 | 1280 | f2fs_show_quota_options(seq, sbi->sb); |
0cdd3195 HL |
1281 | if (sbi->whint_mode == WHINT_MODE_USER) |
1282 | seq_printf(seq, ",whint_mode=%s", "user-based"); | |
f2e703f9 HL |
1283 | else if (sbi->whint_mode == WHINT_MODE_FS) |
1284 | seq_printf(seq, ",whint_mode=%s", "fs-based"); | |
aff063e2 | 1285 | |
07939627 JK |
1286 | if (sbi->alloc_mode == ALLOC_MODE_DEFAULT) |
1287 | seq_printf(seq, ",alloc_mode=%s", "default"); | |
1288 | else if (sbi->alloc_mode == ALLOC_MODE_REUSE) | |
1289 | seq_printf(seq, ",alloc_mode=%s", "reuse"); | |
aff063e2 JK |
1290 | return 0; |
1291 | } | |
1292 | ||
498c5e9f YH |
1293 | static void default_options(struct f2fs_sb_info *sbi) |
1294 | { | |
1295 | /* init some FS parameters */ | |
1296 | sbi->active_logs = NR_CURSEG_TYPE; | |
6afc662e | 1297 | sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
0cdd3195 | 1298 | sbi->whint_mode = WHINT_MODE_OFF; |
07939627 | 1299 | sbi->alloc_mode = ALLOC_MODE_DEFAULT; |
782911f4 | 1300 | sbi->readdir_ra = 1; |
498c5e9f YH |
1301 | |
1302 | set_opt(sbi, BG_GC); | |
39133a50 | 1303 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1304 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1305 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1306 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1307 | set_opt(sbi, NOHEAP); |
1751e8a6 | 1308 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1309 | set_opt(sbi, FLUSH_MERGE); |
ccd31cb2 | 1310 | if (f2fs_sb_has_blkzoned(sbi->sb)) { |
52763a4b JK |
1311 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1312 | set_opt(sbi, DISCARD); | |
1313 | } else { | |
1314 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1315 | } | |
498c5e9f YH |
1316 | |
1317 | #ifdef CONFIG_F2FS_FS_XATTR | |
1318 | set_opt(sbi, XATTR_USER); | |
1319 | #endif | |
1320 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1321 | set_opt(sbi, POSIX_ACL); | |
1322 | #endif | |
36dbd328 CY |
1323 | |
1324 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1325 | f2fs_build_fault_attr(sbi, 0); | |
1326 | #endif | |
498c5e9f YH |
1327 | } |
1328 | ||
ea676733 JK |
1329 | #ifdef CONFIG_QUOTA |
1330 | static int f2fs_enable_quotas(struct super_block *sb); | |
1331 | #endif | |
696c018c NJ |
1332 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1333 | { | |
1334 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1335 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1336 | unsigned long old_sb_flags; |
696c018c | 1337 | int err, active_logs; |
876dc59e GZ |
1338 | bool need_restart_gc = false; |
1339 | bool need_stop_gc = false; | |
9cd81ce3 | 1340 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
0cdd3195 | 1341 | int old_whint_mode = sbi->whint_mode; |
07939627 | 1342 | int old_alloc_mode = sbi->alloc_mode; |
2443b8b3 CY |
1343 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1344 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1345 | #endif | |
4b2414d0 CY |
1346 | #ifdef CONFIG_QUOTA |
1347 | int s_jquota_fmt; | |
1348 | char *s_qf_names[MAXQUOTAS]; | |
1349 | int i, j; | |
1350 | #endif | |
696c018c NJ |
1351 | |
1352 | /* | |
1353 | * Save the old mount options in case we | |
1354 | * need to restore them. | |
1355 | */ | |
1356 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1357 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1358 | active_logs = sbi->active_logs; |
1359 | ||
4b2414d0 CY |
1360 | #ifdef CONFIG_QUOTA |
1361 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1362 | for (i = 0; i < MAXQUOTAS; i++) { | |
1363 | if (sbi->s_qf_names[i]) { | |
1364 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1365 | GFP_KERNEL); | |
1366 | if (!s_qf_names[i]) { | |
1367 | for (j = 0; j < i; j++) | |
1368 | kfree(s_qf_names[j]); | |
1369 | return -ENOMEM; | |
1370 | } | |
1371 | } else { | |
1372 | s_qf_names[i] = NULL; | |
1373 | } | |
1374 | } | |
1375 | #endif | |
1376 | ||
df728b0f | 1377 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1378 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1379 | err = f2fs_commit_super(sbi, false); |
1380 | f2fs_msg(sb, KERN_INFO, | |
1381 | "Try to recover all the superblocks, ret: %d", err); | |
1382 | if (!err) | |
1383 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1384 | } | |
1385 | ||
498c5e9f | 1386 | default_options(sbi); |
26666c8a | 1387 | |
696c018c NJ |
1388 | /* parse mount options */ |
1389 | err = parse_options(sb, data); | |
1390 | if (err) | |
1391 | goto restore_opts; | |
1392 | ||
1393 | /* | |
1394 | * Previous and new state of filesystem is RO, | |
876dc59e | 1395 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1396 | */ |
1751e8a6 | 1397 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1398 | goto skip; |
1399 | ||
ea676733 | 1400 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1401 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1402 | err = dquot_suspend(sb, -1); |
1403 | if (err < 0) | |
1404 | goto restore_opts; | |
6279398d | 1405 | } else if (f2fs_readonly(sb) && !(*flags & MS_RDONLY)) { |
0abd675e | 1406 | /* dquot_resume needs RW */ |
1751e8a6 | 1407 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1408 | if (sb_any_quota_suspended(sb)) { |
1409 | dquot_resume(sb, -1); | |
1410 | } else if (f2fs_sb_has_quota_ino(sb)) { | |
1411 | err = f2fs_enable_quotas(sb); | |
1412 | if (err) | |
1413 | goto restore_opts; | |
1414 | } | |
0abd675e | 1415 | } |
ea676733 | 1416 | #endif |
9cd81ce3 CY |
1417 | /* disallow enable/disable extent_cache dynamically */ |
1418 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1419 | err = -EINVAL; | |
1420 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1421 | "switch extent_cache option is not allowed"); | |
1422 | goto restore_opts; | |
1423 | } | |
1424 | ||
696c018c NJ |
1425 | /* |
1426 | * We stop the GC thread if FS is mounted as RO | |
1427 | * or if background_gc = off is passed in mount | |
1428 | * option. Also sync the filesystem. | |
1429 | */ | |
1751e8a6 | 1430 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c NJ |
1431 | if (sbi->gc_thread) { |
1432 | stop_gc_thread(sbi); | |
876dc59e | 1433 | need_restart_gc = true; |
696c018c | 1434 | } |
aba291b3 | 1435 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1436 | err = start_gc_thread(sbi); |
1437 | if (err) | |
1438 | goto restore_opts; | |
876dc59e GZ |
1439 | need_stop_gc = true; |
1440 | } | |
1441 | ||
0cdd3195 | 1442 | if (*flags & SB_RDONLY || sbi->whint_mode != old_whint_mode) { |
faa0e55b JK |
1443 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1444 | sync_inodes_sb(sb); | |
1445 | ||
1446 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1447 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1448 | f2fs_sync_fs(sb, 1); | |
1449 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1450 | } | |
1451 | ||
876dc59e GZ |
1452 | /* |
1453 | * We stop issue flush thread if FS is mounted as RO | |
1454 | * or if flush_merge is not passed in mount option. | |
1455 | */ | |
1751e8a6 | 1456 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d JK |
1457 | clear_opt(sbi, FLUSH_MERGE); |
1458 | destroy_flush_cmd_control(sbi, false); | |
1459 | } else { | |
2163d198 GZ |
1460 | err = create_flush_cmd_control(sbi); |
1461 | if (err) | |
a688b9d9 | 1462 | goto restore_gc; |
696c018c NJ |
1463 | } |
1464 | skip: | |
4b2414d0 CY |
1465 | #ifdef CONFIG_QUOTA |
1466 | /* Release old quota file names */ | |
1467 | for (i = 0; i < MAXQUOTAS; i++) | |
1468 | kfree(s_qf_names[i]); | |
1469 | #endif | |
696c018c | 1470 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1471 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1472 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1473 | |
7e65be49 | 1474 | limit_reserve_root(sbi); |
696c018c | 1475 | return 0; |
876dc59e GZ |
1476 | restore_gc: |
1477 | if (need_restart_gc) { | |
1478 | if (start_gc_thread(sbi)) | |
1479 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1480 | "background gc thread has stopped"); |
876dc59e GZ |
1481 | } else if (need_stop_gc) { |
1482 | stop_gc_thread(sbi); | |
1483 | } | |
696c018c | 1484 | restore_opts: |
4b2414d0 CY |
1485 | #ifdef CONFIG_QUOTA |
1486 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1487 | for (i = 0; i < MAXQUOTAS; i++) { | |
1488 | kfree(sbi->s_qf_names[i]); | |
1489 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1490 | } | |
1491 | #endif | |
07939627 | 1492 | sbi->alloc_mode = old_alloc_mode; |
0cdd3195 | 1493 | sbi->whint_mode = old_whint_mode; |
696c018c NJ |
1494 | sbi->mount_opt = org_mount_opt; |
1495 | sbi->active_logs = active_logs; | |
0abd675e | 1496 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1497 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1498 | sbi->fault_info = ffi; | |
1499 | #endif | |
696c018c NJ |
1500 | return err; |
1501 | } | |
1502 | ||
0abd675e CY |
1503 | #ifdef CONFIG_QUOTA |
1504 | /* Read data from quotafile */ | |
1505 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1506 | size_t len, loff_t off) | |
1507 | { | |
1508 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1509 | struct address_space *mapping = inode->i_mapping; | |
1510 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1511 | int offset = off & (sb->s_blocksize - 1); | |
1512 | int tocopy; | |
1513 | size_t toread; | |
1514 | loff_t i_size = i_size_read(inode); | |
1515 | struct page *page; | |
1516 | char *kaddr; | |
1517 | ||
1518 | if (off > i_size) | |
1519 | return 0; | |
1520 | ||
1521 | if (off + len > i_size) | |
1522 | len = i_size - off; | |
1523 | toread = len; | |
1524 | while (toread > 0) { | |
1525 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1526 | repeat: | |
1527 | page = read_mapping_page(mapping, blkidx, NULL); | |
4e46a023 JK |
1528 | if (IS_ERR(page)) { |
1529 | if (PTR_ERR(page) == -ENOMEM) { | |
1530 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1531 | goto repeat; | |
1532 | } | |
0abd675e | 1533 | return PTR_ERR(page); |
4e46a023 | 1534 | } |
0abd675e CY |
1535 | |
1536 | lock_page(page); | |
1537 | ||
1538 | if (unlikely(page->mapping != mapping)) { | |
1539 | f2fs_put_page(page, 1); | |
1540 | goto repeat; | |
1541 | } | |
1542 | if (unlikely(!PageUptodate(page))) { | |
1543 | f2fs_put_page(page, 1); | |
1544 | return -EIO; | |
1545 | } | |
1546 | ||
1547 | kaddr = kmap_atomic(page); | |
1548 | memcpy(data, kaddr + offset, tocopy); | |
1549 | kunmap_atomic(kaddr); | |
1550 | f2fs_put_page(page, 1); | |
1551 | ||
1552 | offset = 0; | |
1553 | toread -= tocopy; | |
1554 | data += tocopy; | |
1555 | blkidx++; | |
1556 | } | |
1557 | return len; | |
1558 | } | |
1559 | ||
1560 | /* Write to quotafile */ | |
1561 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1562 | const char *data, size_t len, loff_t off) | |
1563 | { | |
1564 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1565 | struct address_space *mapping = inode->i_mapping; | |
1566 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1567 | int offset = off & (sb->s_blocksize - 1); | |
1568 | size_t towrite = len; | |
1569 | struct page *page; | |
1570 | char *kaddr; | |
1571 | int err = 0; | |
1572 | int tocopy; | |
1573 | ||
1574 | while (towrite > 0) { | |
1575 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1576 | towrite); | |
4e46a023 | 1577 | retry: |
0abd675e CY |
1578 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1579 | &page, NULL); | |
4e46a023 JK |
1580 | if (unlikely(err)) { |
1581 | if (err == -ENOMEM) { | |
1582 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1583 | goto retry; | |
1584 | } | |
0abd675e | 1585 | break; |
4e46a023 | 1586 | } |
0abd675e CY |
1587 | |
1588 | kaddr = kmap_atomic(page); | |
1589 | memcpy(kaddr + offset, data, tocopy); | |
1590 | kunmap_atomic(kaddr); | |
1591 | flush_dcache_page(page); | |
1592 | ||
1593 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1594 | page, NULL); | |
1595 | offset = 0; | |
1596 | towrite -= tocopy; | |
1597 | off += tocopy; | |
1598 | data += tocopy; | |
1599 | cond_resched(); | |
1600 | } | |
1601 | ||
1602 | if (len == towrite) | |
6e5b5d41 | 1603 | return err; |
0abd675e CY |
1604 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1605 | f2fs_mark_inode_dirty_sync(inode, false); | |
1606 | return len - towrite; | |
1607 | } | |
1608 | ||
1609 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1610 | { | |
1611 | return F2FS_I(inode)->i_dquot; | |
1612 | } | |
1613 | ||
1614 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1615 | { | |
1616 | return &F2FS_I(inode)->i_reserved_quota; | |
1617 | } | |
1618 | ||
4b2414d0 CY |
1619 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1620 | { | |
1621 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1622 | sbi->s_jquota_fmt, type); | |
1623 | } | |
1624 | ||
ea676733 | 1625 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1626 | { |
ea676733 JK |
1627 | int enabled = 0; |
1628 | int i, err; | |
1629 | ||
1630 | if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { | |
1631 | err = f2fs_enable_quotas(sbi->sb); | |
1632 | if (err) { | |
1633 | f2fs_msg(sbi->sb, KERN_ERR, | |
1634 | "Cannot turn on quota_ino: %d", err); | |
1635 | return 0; | |
1636 | } | |
1637 | return 1; | |
1638 | } | |
4b2414d0 CY |
1639 | |
1640 | for (i = 0; i < MAXQUOTAS; i++) { | |
1641 | if (sbi->s_qf_names[i]) { | |
ea676733 JK |
1642 | err = f2fs_quota_on_mount(sbi, i); |
1643 | if (!err) { | |
1644 | enabled = 1; | |
1645 | continue; | |
1646 | } | |
1647 | f2fs_msg(sbi->sb, KERN_ERR, | |
1648 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1649 | } |
1650 | } | |
ea676733 JK |
1651 | return enabled; |
1652 | } | |
1653 | ||
1654 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1655 | unsigned int flags) | |
1656 | { | |
1657 | struct inode *qf_inode; | |
1658 | unsigned long qf_inum; | |
1659 | int err; | |
1660 | ||
1661 | BUG_ON(!f2fs_sb_has_quota_ino(sb)); | |
1662 | ||
1663 | qf_inum = f2fs_qf_ino(sb, type); | |
1664 | if (!qf_inum) | |
1665 | return -EPERM; | |
1666 | ||
1667 | qf_inode = f2fs_iget(sb, qf_inum); | |
1668 | if (IS_ERR(qf_inode)) { | |
1669 | f2fs_msg(sb, KERN_ERR, | |
1670 | "Bad quota inode %u:%lu", type, qf_inum); | |
1671 | return PTR_ERR(qf_inode); | |
1672 | } | |
1673 | ||
1674 | /* Don't account quota for quota files to avoid recursion */ | |
1675 | qf_inode->i_flags |= S_NOQUOTA; | |
1676 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1677 | iput(qf_inode); | |
1678 | return err; | |
1679 | } | |
1680 | ||
1681 | static int f2fs_enable_quotas(struct super_block *sb) | |
1682 | { | |
1683 | int type, err = 0; | |
1684 | unsigned long qf_inum; | |
1685 | bool quota_mopt[MAXQUOTAS] = { | |
1686 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1687 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1688 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1689 | }; | |
1690 | ||
1691 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; | |
1692 | for (type = 0; type < MAXQUOTAS; type++) { | |
1693 | qf_inum = f2fs_qf_ino(sb, type); | |
1694 | if (qf_inum) { | |
1695 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1696 | DQUOT_USAGE_ENABLED | | |
1697 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1698 | if (err) { | |
1699 | f2fs_msg(sb, KERN_ERR, | |
1700 | "Failed to enable quota tracking " | |
1701 | "(type=%d, err=%d). Please run " | |
1702 | "fsck to fix.", type, err); | |
1703 | for (type--; type >= 0; type--) | |
1704 | dquot_quota_off(sb, type); | |
1705 | return err; | |
1706 | } | |
4b2414d0 CY |
1707 | } |
1708 | } | |
ea676733 | 1709 | return 0; |
4b2414d0 CY |
1710 | } |
1711 | ||
0abd675e CY |
1712 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1713 | { | |
1714 | struct quota_info *dqopt = sb_dqopt(sb); | |
1715 | int cnt; | |
1716 | int ret; | |
1717 | ||
1718 | ret = dquot_writeback_dquots(sb, type); | |
1719 | if (ret) | |
1720 | return ret; | |
1721 | ||
1722 | /* | |
1723 | * Now when everything is written we can discard the pagecache so | |
1724 | * that userspace sees the changes. | |
1725 | */ | |
1726 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1727 | if (type != -1 && cnt != type) | |
1728 | continue; | |
1729 | if (!sb_has_quota_active(sb, cnt)) | |
1730 | continue; | |
1731 | ||
1732 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1733 | if (ret) | |
1734 | return ret; | |
1735 | ||
1736 | inode_lock(dqopt->files[cnt]); | |
1737 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1738 | inode_unlock(dqopt->files[cnt]); | |
1739 | } | |
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1744 | const struct path *path) | |
1745 | { | |
1746 | struct inode *inode; | |
1747 | int err; | |
1748 | ||
9a20d391 | 1749 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1750 | if (err) |
1751 | return err; | |
1752 | ||
1753 | err = dquot_quota_on(sb, type, format_id, path); | |
1754 | if (err) | |
1755 | return err; | |
1756 | ||
1757 | inode = d_inode(path->dentry); | |
1758 | ||
1759 | inode_lock(inode); | |
1760 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1761 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1762 | S_NOATIME | S_IMMUTABLE); | |
1763 | inode_unlock(inode); | |
1764 | f2fs_mark_inode_dirty_sync(inode, false); | |
1765 | ||
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1770 | { | |
1771 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1772 | int err; | |
1773 | ||
1774 | if (!inode || !igrab(inode)) | |
1775 | return dquot_quota_off(sb, type); | |
1776 | ||
9a20d391 | 1777 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1778 | |
1779 | err = dquot_quota_off(sb, type); | |
ea676733 | 1780 | if (err || f2fs_sb_has_quota_ino(sb)) |
0abd675e CY |
1781 | goto out_put; |
1782 | ||
1783 | inode_lock(inode); | |
1784 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1785 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1786 | inode_unlock(inode); | |
1787 | f2fs_mark_inode_dirty_sync(inode, false); | |
1788 | out_put: | |
1789 | iput(inode); | |
1790 | return err; | |
1791 | } | |
1792 | ||
4b2414d0 | 1793 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1794 | { |
1795 | int type; | |
1796 | ||
1797 | for (type = 0; type < MAXQUOTAS; type++) | |
1798 | f2fs_quota_off(sb, type); | |
1799 | } | |
1800 | ||
94b1e10e | 1801 | static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
5c57132e CY |
1802 | { |
1803 | *projid = F2FS_I(inode)->i_projid; | |
1804 | return 0; | |
1805 | } | |
1806 | ||
0abd675e CY |
1807 | static const struct dquot_operations f2fs_quota_operations = { |
1808 | .get_reserved_space = f2fs_get_reserved_space, | |
1809 | .write_dquot = dquot_commit, | |
1810 | .acquire_dquot = dquot_acquire, | |
1811 | .release_dquot = dquot_release, | |
1812 | .mark_dirty = dquot_mark_dquot_dirty, | |
1813 | .write_info = dquot_commit_info, | |
1814 | .alloc_dquot = dquot_alloc, | |
1815 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1816 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1817 | .get_next_id = dquot_get_next_id, |
1818 | }; | |
1819 | ||
1820 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1821 | .quota_on = f2fs_quota_on, | |
1822 | .quota_off = f2fs_quota_off, | |
1823 | .quota_sync = f2fs_quota_sync, | |
1824 | .get_state = dquot_get_state, | |
1825 | .set_info = dquot_set_dqinfo, | |
1826 | .get_dqblk = dquot_get_dqblk, | |
1827 | .set_dqblk = dquot_set_dqblk, | |
1828 | .get_nextdqblk = dquot_get_next_dqblk, | |
1829 | }; | |
1830 | #else | |
4b2414d0 | 1831 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1832 | { |
1833 | } | |
1834 | #endif | |
1835 | ||
f62fc9f9 | 1836 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1837 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1838 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1839 | .destroy_inode = f2fs_destroy_inode, |
1840 | .write_inode = f2fs_write_inode, | |
b3783873 | 1841 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1842 | .show_options = f2fs_show_options, |
0abd675e CY |
1843 | #ifdef CONFIG_QUOTA |
1844 | .quota_read = f2fs_quota_read, | |
1845 | .quota_write = f2fs_quota_write, | |
1846 | .get_dquots = f2fs_get_dquots, | |
1847 | #endif | |
aff063e2 JK |
1848 | .evict_inode = f2fs_evict_inode, |
1849 | .put_super = f2fs_put_super, | |
1850 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1851 | .freeze_fs = f2fs_freeze, |
1852 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1853 | .statfs = f2fs_statfs, |
696c018c | 1854 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1855 | }; |
1856 | ||
0b81d077 JK |
1857 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1858 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1859 | { | |
1860 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1861 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1862 | ctx, len, NULL); | |
1863 | } | |
1864 | ||
1865 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1866 | void *fs_data) | |
1867 | { | |
1868 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1869 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1870 | ctx, len, fs_data, XATTR_CREATE); | |
1871 | } | |
1872 | ||
1873 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1874 | { | |
1875 | return S_ISLNK(inode->i_mode) ? | |
1876 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1877 | } | |
1878 | ||
6f69f0ed | 1879 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1880 | .key_prefix = "f2fs:", |
0b81d077 JK |
1881 | .get_context = f2fs_get_context, |
1882 | .set_context = f2fs_set_context, | |
0b81d077 JK |
1883 | .empty_dir = f2fs_empty_dir, |
1884 | .max_namelen = f2fs_max_namelen, | |
1885 | }; | |
0b81d077 JK |
1886 | #endif |
1887 | ||
aff063e2 JK |
1888 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1889 | u64 ino, u32 generation) | |
1890 | { | |
1891 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1892 | struct inode *inode; | |
1893 | ||
d6b7d4b3 | 1894 | if (check_nid_range(sbi, ino)) |
910bb12d | 1895 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1896 | |
1897 | /* | |
1898 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1899 | * However f2fs_iget currently does appropriate checks to handle stale | |
1900 | * inodes so everything is OK. | |
1901 | */ | |
1902 | inode = f2fs_iget(sb, ino); | |
1903 | if (IS_ERR(inode)) | |
1904 | return ERR_CAST(inode); | |
6bacf52f | 1905 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1906 | /* we didn't find the right inode.. */ |
1907 | iput(inode); | |
1908 | return ERR_PTR(-ESTALE); | |
1909 | } | |
1910 | return inode; | |
1911 | } | |
1912 | ||
1913 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1914 | int fh_len, int fh_type) | |
1915 | { | |
1916 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1917 | f2fs_nfs_get_inode); | |
1918 | } | |
1919 | ||
1920 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1921 | int fh_len, int fh_type) | |
1922 | { | |
1923 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1924 | f2fs_nfs_get_inode); | |
1925 | } | |
1926 | ||
1927 | static const struct export_operations f2fs_export_ops = { | |
1928 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1929 | .fh_to_parent = f2fs_fh_to_parent, | |
1930 | .get_parent = f2fs_get_parent, | |
1931 | }; | |
1932 | ||
e0afc4d6 | 1933 | static loff_t max_file_blocks(void) |
aff063e2 | 1934 | { |
7a2af766 | 1935 | loff_t result = 0; |
aff063e2 JK |
1936 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1937 | ||
7a2af766 CY |
1938 | /* |
1939 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 1940 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
1941 | * space in inode.i_addr, it will be more safe to reassign |
1942 | * result as zero. | |
1943 | */ | |
1944 | ||
aff063e2 JK |
1945 | /* two direct node blocks */ |
1946 | result += (leaf_count * 2); | |
1947 | ||
1948 | /* two indirect node blocks */ | |
1949 | leaf_count *= NIDS_PER_BLOCK; | |
1950 | result += (leaf_count * 2); | |
1951 | ||
1952 | /* one double indirect node block */ | |
1953 | leaf_count *= NIDS_PER_BLOCK; | |
1954 | result += leaf_count; | |
1955 | ||
aff063e2 JK |
1956 | return result; |
1957 | } | |
1958 | ||
fd694733 JK |
1959 | static int __f2fs_commit_super(struct buffer_head *bh, |
1960 | struct f2fs_super_block *super) | |
1961 | { | |
1962 | lock_buffer(bh); | |
1963 | if (super) | |
1964 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
fd694733 JK |
1965 | set_buffer_dirty(bh); |
1966 | unlock_buffer(bh); | |
1967 | ||
1968 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1969 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1970 | } |
1971 | ||
df728b0f | 1972 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1973 | struct buffer_head *bh) |
9a59b62f | 1974 | { |
fd694733 JK |
1975 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1976 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1977 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1978 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1979 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1980 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1981 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1982 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1983 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1984 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1985 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1986 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1987 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1988 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1989 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1990 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1991 | u64 main_end_blkaddr = main_blkaddr + |
1992 | (segment_count_main << log_blocks_per_seg); | |
1993 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1994 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1995 | |
1996 | if (segment0_blkaddr != cp_blkaddr) { | |
1997 | f2fs_msg(sb, KERN_INFO, | |
1998 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1999 | segment0_blkaddr, cp_blkaddr); | |
2000 | return true; | |
2001 | } | |
2002 | ||
2003 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
2004 | sit_blkaddr) { | |
2005 | f2fs_msg(sb, KERN_INFO, | |
2006 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
2007 | cp_blkaddr, sit_blkaddr, | |
2008 | segment_count_ckpt << log_blocks_per_seg); | |
2009 | return true; | |
2010 | } | |
2011 | ||
2012 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
2013 | nat_blkaddr) { | |
2014 | f2fs_msg(sb, KERN_INFO, | |
2015 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
2016 | sit_blkaddr, nat_blkaddr, | |
2017 | segment_count_sit << log_blocks_per_seg); | |
2018 | return true; | |
2019 | } | |
2020 | ||
2021 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
2022 | ssa_blkaddr) { | |
2023 | f2fs_msg(sb, KERN_INFO, | |
2024 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
2025 | nat_blkaddr, ssa_blkaddr, | |
2026 | segment_count_nat << log_blocks_per_seg); | |
2027 | return true; | |
2028 | } | |
2029 | ||
2030 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
2031 | main_blkaddr) { | |
2032 | f2fs_msg(sb, KERN_INFO, | |
2033 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
2034 | ssa_blkaddr, main_blkaddr, | |
2035 | segment_count_ssa << log_blocks_per_seg); | |
2036 | return true; | |
2037 | } | |
2038 | ||
fd694733 | 2039 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 2040 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 2041 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 2042 | main_blkaddr, |
fd694733 JK |
2043 | segment0_blkaddr + |
2044 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
2045 | segment_count_main << log_blocks_per_seg); |
2046 | return true; | |
fd694733 JK |
2047 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
2048 | int err = 0; | |
2049 | char *res; | |
2050 | ||
2051 | /* fix in-memory information all the time */ | |
2052 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
2053 | segment0_blkaddr) >> log_blocks_per_seg); | |
2054 | ||
2055 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 2056 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
2057 | res = "internally"; |
2058 | } else { | |
2059 | err = __f2fs_commit_super(bh, NULL); | |
2060 | res = err ? "failed" : "done"; | |
2061 | } | |
2062 | f2fs_msg(sb, KERN_INFO, | |
2063 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
2064 | res, main_blkaddr, | |
2065 | segment0_blkaddr + | |
2066 | (segment_count << log_blocks_per_seg), | |
2067 | segment_count_main << log_blocks_per_seg); | |
2068 | if (err) | |
2069 | return true; | |
9a59b62f | 2070 | } |
9a59b62f CY |
2071 | return false; |
2072 | } | |
2073 | ||
df728b0f | 2074 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 2075 | struct buffer_head *bh) |
aff063e2 | 2076 | { |
fd694733 JK |
2077 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
2078 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 2079 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
2080 | unsigned int blocksize; |
2081 | ||
a07ef784 NJ |
2082 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
2083 | f2fs_msg(sb, KERN_INFO, | |
2084 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
2085 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 2086 | return 1; |
a07ef784 | 2087 | } |
aff063e2 | 2088 | |
5c9b4692 | 2089 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 2090 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 2091 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 2092 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 2093 | PAGE_SIZE); |
5c9b4692 | 2094 | return 1; |
2095 | } | |
2096 | ||
aff063e2 JK |
2097 | /* Currently, support only 4KB block size */ |
2098 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 2099 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
2100 | f2fs_msg(sb, KERN_INFO, |
2101 | "Invalid blocksize (%u), supports only 4KB\n", | |
2102 | blocksize); | |
aff063e2 | 2103 | return 1; |
a07ef784 | 2104 | } |
5c9b4692 | 2105 | |
9a59b62f CY |
2106 | /* check log blocks per segment */ |
2107 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
2108 | f2fs_msg(sb, KERN_INFO, | |
2109 | "Invalid log blocks per segment (%u)\n", | |
2110 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
2111 | return 1; | |
2112 | } | |
2113 | ||
55cf9cb6 CY |
2114 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
2115 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
2116 | F2FS_MAX_LOG_SECTOR_SIZE || | |
2117 | le32_to_cpu(raw_super->log_sectorsize) < | |
2118 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
2119 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
2120 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2121 | return 1; |
a07ef784 | 2122 | } |
55cf9cb6 CY |
2123 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
2124 | le32_to_cpu(raw_super->log_sectorsize) != | |
2125 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
2126 | f2fs_msg(sb, KERN_INFO, | |
2127 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
2128 | le32_to_cpu(raw_super->log_sectors_per_block), | |
2129 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2130 | return 1; |
a07ef784 | 2131 | } |
9a59b62f CY |
2132 | |
2133 | /* check reserved ino info */ | |
2134 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
2135 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
2136 | le32_to_cpu(raw_super->root_ino) != 3) { | |
2137 | f2fs_msg(sb, KERN_INFO, | |
2138 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
2139 | le32_to_cpu(raw_super->node_ino), | |
2140 | le32_to_cpu(raw_super->meta_ino), | |
2141 | le32_to_cpu(raw_super->root_ino)); | |
2142 | return 1; | |
2143 | } | |
2144 | ||
b9dd4618 JQ |
2145 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
2146 | f2fs_msg(sb, KERN_INFO, | |
2147 | "Invalid segment count (%u)", | |
2148 | le32_to_cpu(raw_super->segment_count)); | |
2149 | return 1; | |
2150 | } | |
2151 | ||
9a59b62f | 2152 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 2153 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
2154 | return 1; |
2155 | ||
aff063e2 JK |
2156 | return 0; |
2157 | } | |
2158 | ||
984ec63c | 2159 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2160 | { |
2161 | unsigned int total, fsmeta; | |
577e3495 JK |
2162 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2163 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2164 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
2165 | unsigned int main_segs, blocks_per_seg; |
2166 | int i; | |
aff063e2 JK |
2167 | |
2168 | total = le32_to_cpu(raw_super->segment_count); | |
2169 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
2170 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
2171 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
2172 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
2173 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2174 | ||
6bacf52f | 2175 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2176 | return 1; |
577e3495 | 2177 | |
2040fce8 JK |
2178 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2179 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2180 | ||
2181 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2182 | ovp_segments == 0 || reserved_segments == 0)) { | |
2183 | f2fs_msg(sbi->sb, KERN_ERR, | |
2184 | "Wrong layout: check mkfs.f2fs version"); | |
2185 | return 1; | |
2186 | } | |
2187 | ||
15d3042a JQ |
2188 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2189 | blocks_per_seg = sbi->blocks_per_seg; | |
2190 | ||
2191 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2192 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2193 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2194 | return 1; | |
2195 | } | |
2196 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2197 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2198 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2199 | return 1; | |
2200 | } | |
2201 | ||
1e968fdf | 2202 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2203 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2204 | return 1; | |
2205 | } | |
aff063e2 JK |
2206 | return 0; |
2207 | } | |
2208 | ||
2209 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2210 | { | |
2211 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 2212 | int i, j; |
aff063e2 JK |
2213 | |
2214 | sbi->log_sectors_per_block = | |
2215 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2216 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2217 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2218 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2219 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2220 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2221 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2222 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2223 | sbi->total_node_count = | |
2224 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2225 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2226 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2227 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2228 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2229 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 2230 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 2231 | |
ab9fa662 | 2232 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2233 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2234 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 2235 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2236 | |
35782b23 JK |
2237 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2238 | atomic_set(&sbi->nr_pages[i], 0); | |
2239 | ||
687de7f1 JK |
2240 | atomic_set(&sbi->wb_sync_req, 0); |
2241 | ||
2658e50d JK |
2242 | INIT_LIST_HEAD(&sbi->s_list); |
2243 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
2244 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
2245 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
2246 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 2247 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2248 | |
2249 | sbi->dirty_device = 0; | |
2250 | spin_lock_init(&sbi->dev_lock); | |
d0d3f1b3 | 2251 | |
846ae671 | 2252 | init_rwsem(&sbi->sb_lock); |
aff063e2 JK |
2253 | } |
2254 | ||
523be8a6 JK |
2255 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2256 | { | |
35782b23 | 2257 | int err; |
41382ec4 | 2258 | |
513c5f37 JK |
2259 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2260 | if (err) | |
2261 | return err; | |
2262 | ||
2263 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 2264 | GFP_KERNEL); |
523be8a6 JK |
2265 | } |
2266 | ||
178053e2 | 2267 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2268 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2269 | { |
3c62be17 | 2270 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2271 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2272 | sector_t sector = 0; | |
2273 | struct blk_zone *zones; | |
2274 | unsigned int i, nr_zones; | |
2275 | unsigned int n = 0; | |
2276 | int err = -EIO; | |
2277 | ||
ccd31cb2 | 2278 | if (!f2fs_sb_has_blkzoned(sbi->sb)) |
178053e2 DLM |
2279 | return 0; |
2280 | ||
3c62be17 | 2281 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2282 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2283 | return -EINVAL; |
f99e8648 | 2284 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2285 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2286 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2287 | return -EINVAL; | |
178053e2 | 2288 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2289 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2290 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2291 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2292 | FDEV(devi).nr_blkz++; |
178053e2 | 2293 | |
4e6aad29 CY |
2294 | FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz, |
2295 | GFP_KERNEL); | |
3c62be17 | 2296 | if (!FDEV(devi).blkz_type) |
178053e2 DLM |
2297 | return -ENOMEM; |
2298 | ||
2299 | #define F2FS_REPORT_NR_ZONES 4096 | |
2300 | ||
4e6aad29 CY |
2301 | zones = f2fs_kzalloc(sbi, sizeof(struct blk_zone) * |
2302 | F2FS_REPORT_NR_ZONES, GFP_KERNEL); | |
178053e2 DLM |
2303 | if (!zones) |
2304 | return -ENOMEM; | |
2305 | ||
2306 | /* Get block zones type */ | |
2307 | while (zones && sector < nr_sectors) { | |
2308 | ||
2309 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2310 | err = blkdev_report_zones(bdev, sector, | |
2311 | zones, &nr_zones, | |
2312 | GFP_KERNEL); | |
2313 | if (err) | |
2314 | break; | |
2315 | if (!nr_zones) { | |
2316 | err = -EIO; | |
2317 | break; | |
2318 | } | |
2319 | ||
2320 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2321 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2322 | sector += zones[i].len; |
2323 | n++; | |
2324 | } | |
2325 | } | |
2326 | ||
2327 | kfree(zones); | |
2328 | ||
2329 | return err; | |
2330 | } | |
2331 | #endif | |
2332 | ||
9076a75f GZ |
2333 | /* |
2334 | * Read f2fs raw super block. | |
2b39e907 SL |
2335 | * Because we have two copies of super block, so read both of them |
2336 | * to get the first valid one. If any one of them is broken, we pass | |
2337 | * them recovery flag back to the caller. | |
9076a75f | 2338 | */ |
df728b0f | 2339 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2340 | struct f2fs_super_block **raw_super, |
e8240f65 | 2341 | int *valid_super_block, int *recovery) |
14d7e9de | 2342 | { |
df728b0f | 2343 | struct super_block *sb = sbi->sb; |
2b39e907 | 2344 | int block; |
e8240f65 | 2345 | struct buffer_head *bh; |
fd694733 | 2346 | struct f2fs_super_block *super; |
da554e48 | 2347 | int err = 0; |
14d7e9de | 2348 | |
b39f0de2 YH |
2349 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2350 | if (!super) | |
2351 | return -ENOMEM; | |
2b39e907 SL |
2352 | |
2353 | for (block = 0; block < 2; block++) { | |
2354 | bh = sb_bread(sb, block); | |
2355 | if (!bh) { | |
2356 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2357 | block + 1); |
2b39e907 SL |
2358 | err = -EIO; |
2359 | continue; | |
2360 | } | |
14d7e9de | 2361 | |
2b39e907 | 2362 | /* sanity checking of raw super */ |
df728b0f | 2363 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2364 | f2fs_msg(sb, KERN_ERR, |
2365 | "Can't find valid F2FS filesystem in %dth superblock", | |
2366 | block + 1); | |
2367 | err = -EINVAL; | |
2368 | brelse(bh); | |
2369 | continue; | |
2370 | } | |
14d7e9de | 2371 | |
2b39e907 | 2372 | if (!*raw_super) { |
fd694733 JK |
2373 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2374 | sizeof(*super)); | |
2b39e907 SL |
2375 | *valid_super_block = block; |
2376 | *raw_super = super; | |
2377 | } | |
2378 | brelse(bh); | |
da554e48 | 2379 | } |
2380 | ||
2b39e907 SL |
2381 | /* Fail to read any one of the superblocks*/ |
2382 | if (err < 0) | |
2383 | *recovery = 1; | |
da554e48 | 2384 | |
da554e48 | 2385 | /* No valid superblock */ |
2b39e907 | 2386 | if (!*raw_super) |
b39f0de2 | 2387 | kfree(super); |
2b39e907 SL |
2388 | else |
2389 | err = 0; | |
da554e48 | 2390 | |
2b39e907 | 2391 | return err; |
14d7e9de | 2392 | } |
2393 | ||
fd694733 | 2394 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2395 | { |
5d909cdb | 2396 | struct buffer_head *bh; |
26d815ad JK |
2397 | int err; |
2398 | ||
df728b0f JK |
2399 | if ((recover && f2fs_readonly(sbi->sb)) || |
2400 | bdev_read_only(sbi->sb->s_bdev)) { | |
2401 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2402 | return -EROFS; |
df728b0f | 2403 | } |
f2353d7b | 2404 | |
fd694733 | 2405 | /* write back-up superblock first */ |
0964fc1a | 2406 | bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1); |
5d909cdb JK |
2407 | if (!bh) |
2408 | return -EIO; | |
fd694733 | 2409 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2410 | brelse(bh); |
c5bda1c8 CY |
2411 | |
2412 | /* if we are in recovery path, skip writing valid superblock */ | |
2413 | if (recover || err) | |
5d909cdb | 2414 | return err; |
26d815ad JK |
2415 | |
2416 | /* write current valid superblock */ | |
0964fc1a | 2417 | bh = sb_bread(sbi->sb, sbi->valid_super_block); |
fd694733 JK |
2418 | if (!bh) |
2419 | return -EIO; | |
2420 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2421 | brelse(bh); | |
2422 | return err; | |
26d815ad JK |
2423 | } |
2424 | ||
3c62be17 JK |
2425 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2426 | { | |
2427 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2428 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2429 | int i; |
2430 | ||
7bb3a371 MS |
2431 | /* Initialize single device information */ |
2432 | if (!RDEV(0).path[0]) { | |
2433 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2434 | return 0; |
7bb3a371 MS |
2435 | max_devices = 1; |
2436 | } | |
3c62be17 | 2437 | |
7bb3a371 MS |
2438 | /* |
2439 | * Initialize multiple devices information, or single | |
2440 | * zoned block device information. | |
2441 | */ | |
4e6aad29 CY |
2442 | sbi->devs = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_info) * |
2443 | max_devices, GFP_KERNEL); | |
7bb3a371 MS |
2444 | if (!sbi->devs) |
2445 | return -ENOMEM; | |
3c62be17 | 2446 | |
7bb3a371 | 2447 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2448 | |
7bb3a371 MS |
2449 | if (i > 0 && !RDEV(i).path[0]) |
2450 | break; | |
2451 | ||
2452 | if (max_devices == 1) { | |
2453 | /* Single zoned block device mount */ | |
2454 | FDEV(0).bdev = | |
2455 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2456 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2457 | } else { |
2458 | /* Multi-device mount */ | |
2459 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2460 | FDEV(i).total_segments = | |
2461 | le32_to_cpu(RDEV(i).total_segments); | |
2462 | if (i == 0) { | |
2463 | FDEV(i).start_blk = 0; | |
2464 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2465 | (FDEV(i).total_segments << | |
2466 | sbi->log_blocks_per_seg) - 1 + | |
2467 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2468 | } else { | |
2469 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2470 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2471 | (FDEV(i).total_segments << | |
2472 | sbi->log_blocks_per_seg) - 1; | |
2473 | } | |
2474 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2475 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2476 | } |
3c62be17 JK |
2477 | if (IS_ERR(FDEV(i).bdev)) |
2478 | return PTR_ERR(FDEV(i).bdev); | |
2479 | ||
2480 | /* to release errored devices */ | |
2481 | sbi->s_ndevs = i + 1; | |
2482 | ||
2483 | #ifdef CONFIG_BLK_DEV_ZONED | |
2484 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
ccd31cb2 | 2485 | !f2fs_sb_has_blkzoned(sbi->sb)) { |
3c62be17 JK |
2486 | f2fs_msg(sbi->sb, KERN_ERR, |
2487 | "Zoned block device feature not enabled\n"); | |
2488 | return -EINVAL; | |
2489 | } | |
2490 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2491 | if (init_blkz_info(sbi, i)) { | |
2492 | f2fs_msg(sbi->sb, KERN_ERR, | |
2493 | "Failed to initialize F2FS blkzone information"); | |
2494 | return -EINVAL; | |
2495 | } | |
7bb3a371 MS |
2496 | if (max_devices == 1) |
2497 | break; | |
3c62be17 JK |
2498 | f2fs_msg(sbi->sb, KERN_INFO, |
2499 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2500 | i, FDEV(i).path, | |
2501 | FDEV(i).total_segments, | |
2502 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2503 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2504 | "Host-aware" : "Host-managed"); | |
2505 | continue; | |
2506 | } | |
2507 | #endif | |
2508 | f2fs_msg(sbi->sb, KERN_INFO, | |
2509 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2510 | i, FDEV(i).path, | |
2511 | FDEV(i).total_segments, | |
2512 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2513 | } | |
0a595eba JK |
2514 | f2fs_msg(sbi->sb, KERN_INFO, |
2515 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2516 | return 0; |
2517 | } | |
2518 | ||
84b89e5d JK |
2519 | static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) |
2520 | { | |
2521 | struct f2fs_sm_info *sm_i = SM_I(sbi); | |
2522 | ||
2523 | /* adjust parameters according to the volume size */ | |
2524 | if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) { | |
2525 | sbi->alloc_mode = ALLOC_MODE_REUSE; | |
2526 | sm_i->dcc_info->discard_granularity = 1; | |
2527 | sm_i->ipu_policy = 1 << F2FS_IPU_FORCE; | |
2528 | } | |
2529 | } | |
2530 | ||
aff063e2 JK |
2531 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2532 | { | |
2533 | struct f2fs_sb_info *sbi; | |
da554e48 | 2534 | struct f2fs_super_block *raw_super; |
aff063e2 | 2535 | struct inode *root; |
99e3e858 | 2536 | int err; |
2adc3505 | 2537 | bool retry = true, need_fsck = false; |
dabc4a5c | 2538 | char *options = NULL; |
e8240f65 | 2539 | int recovery, i, valid_super_block; |
8f1dbbbb | 2540 | struct curseg_info *seg_i; |
aff063e2 | 2541 | |
ed2e621a | 2542 | try_onemore: |
da554e48 | 2543 | err = -EINVAL; |
2544 | raw_super = NULL; | |
e8240f65 | 2545 | valid_super_block = -1; |
da554e48 | 2546 | recovery = 0; |
2547 | ||
aff063e2 JK |
2548 | /* allocate memory for f2fs-specific super block info */ |
2549 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2550 | if (!sbi) | |
2551 | return -ENOMEM; | |
2552 | ||
df728b0f JK |
2553 | sbi->sb = sb; |
2554 | ||
43b6573b KM |
2555 | /* Load the checksum driver */ |
2556 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2557 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2558 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2559 | err = PTR_ERR(sbi->s_chksum_driver); | |
2560 | sbi->s_chksum_driver = NULL; | |
2561 | goto free_sbi; | |
2562 | } | |
2563 | ||
ff9234ad | 2564 | /* set a block size */ |
6bacf52f | 2565 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2566 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2567 | goto free_sbi; |
a07ef784 | 2568 | } |
aff063e2 | 2569 | |
df728b0f | 2570 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2571 | &recovery); |
9076a75f GZ |
2572 | if (err) |
2573 | goto free_sbi; | |
2574 | ||
5fb08372 | 2575 | sb->s_fs_info = sbi; |
52763a4b JK |
2576 | sbi->raw_super = raw_super; |
2577 | ||
7c2e5963 JK |
2578 | sbi->s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); |
2579 | sbi->s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); | |
2580 | ||
704956ec CY |
2581 | /* precompute checksum seed for metadata */ |
2582 | if (f2fs_sb_has_inode_chksum(sb)) | |
2583 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2584 | sizeof(raw_super->uuid)); | |
2585 | ||
d1b959c8 DLM |
2586 | /* |
2587 | * The BLKZONED feature indicates that the drive was formatted with | |
2588 | * zone alignment optimization. This is optional for host-aware | |
2589 | * devices, but mandatory for host-managed zoned block devices. | |
2590 | */ | |
2591 | #ifndef CONFIG_BLK_DEV_ZONED | |
ccd31cb2 | 2592 | if (f2fs_sb_has_blkzoned(sb)) { |
d1b959c8 DLM |
2593 | f2fs_msg(sb, KERN_ERR, |
2594 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2595 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2596 | goto free_sb_buf; |
2597 | } | |
d1b959c8 | 2598 | #endif |
498c5e9f | 2599 | default_options(sbi); |
aff063e2 | 2600 | /* parse mount options */ |
dabc4a5c JK |
2601 | options = kstrdup((const char *)data, GFP_KERNEL); |
2602 | if (data && !options) { | |
2603 | err = -ENOMEM; | |
aff063e2 | 2604 | goto free_sb_buf; |
dabc4a5c JK |
2605 | } |
2606 | ||
2607 | err = parse_options(sb, options); | |
2608 | if (err) | |
2609 | goto free_options; | |
aff063e2 | 2610 | |
e0afc4d6 CY |
2611 | sbi->max_file_blocks = max_file_blocks(); |
2612 | sb->s_maxbytes = sbi->max_file_blocks << | |
2613 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2614 | sb->s_max_links = F2FS_LINK_MAX; |
2615 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2616 | ||
0abd675e CY |
2617 | #ifdef CONFIG_QUOTA |
2618 | sb->dq_op = &f2fs_quota_operations; | |
ea676733 JK |
2619 | if (f2fs_sb_has_quota_ino(sb)) |
2620 | sb->s_qcop = &dquot_quotactl_sysfile_ops; | |
2621 | else | |
2622 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2623 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
292c196a CY |
2624 | |
2625 | if (f2fs_sb_has_quota_ino(sbi->sb)) { | |
2626 | for (i = 0; i < MAXQUOTAS; i++) { | |
2627 | if (f2fs_qf_ino(sbi->sb, i)) | |
2628 | sbi->nquota_files++; | |
2629 | } | |
2630 | } | |
0abd675e CY |
2631 | #endif |
2632 | ||
aff063e2 | 2633 | sb->s_op = &f2fs_sops; |
ffcc4182 | 2634 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 2635 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 2636 | #endif |
aff063e2 JK |
2637 | sb->s_xattr = f2fs_xattr_handlers; |
2638 | sb->s_export_op = &f2fs_export_ops; | |
2639 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 2640 | sb->s_time_gran = 1; |
1751e8a6 LT |
2641 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
2642 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 2643 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
578c6478 | 2644 | sb->s_iflags |= SB_I_CGROUPWB; |
aff063e2 JK |
2645 | |
2646 | /* init f2fs-specific super block info */ | |
e8240f65 | 2647 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2648 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2649 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2650 | init_rwsem(&sbi->node_write); |
59c9081b | 2651 | init_rwsem(&sbi->node_change); |
315df839 JK |
2652 | |
2653 | /* disallow all the data/node/meta page writes */ | |
2654 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2655 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2656 | |
b0af6d49 CY |
2657 | /* init iostat info */ |
2658 | spin_lock_init(&sbi->iostat_lock); | |
2659 | sbi->iostat_enable = false; | |
2660 | ||
458e6197 | 2661 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2662 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2663 | int j; | |
2664 | ||
4e6aad29 CY |
2665 | sbi->write_io[i] = f2fs_kmalloc(sbi, |
2666 | n * sizeof(struct f2fs_bio_info), | |
2667 | GFP_KERNEL); | |
b63def91 CJ |
2668 | if (!sbi->write_io[i]) { |
2669 | err = -ENOMEM; | |
a912b54d | 2670 | goto free_options; |
b63def91 | 2671 | } |
a912b54d JK |
2672 | |
2673 | for (j = HOT; j < n; j++) { | |
2674 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2675 | sbi->write_io[i][j].sbi = sbi; | |
2676 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2677 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2678 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2679 | } |
458e6197 | 2680 | } |
971767ca | 2681 | |
b873b798 | 2682 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2683 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2684 | init_sb_info(sbi); |
2685 | ||
523be8a6 JK |
2686 | err = init_percpu_info(sbi); |
2687 | if (err) | |
d7997e63 | 2688 | goto free_bio_info; |
523be8a6 | 2689 | |
0a595eba JK |
2690 | if (F2FS_IO_SIZE(sbi) > 1) { |
2691 | sbi->write_io_dummy = | |
a3ebfe4f | 2692 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2693 | if (!sbi->write_io_dummy) { |
2694 | err = -ENOMEM; | |
d7997e63 | 2695 | goto free_percpu; |
1727f317 | 2696 | } |
0a595eba JK |
2697 | } |
2698 | ||
aff063e2 JK |
2699 | /* get an inode for meta space */ |
2700 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2701 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2702 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2703 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2704 | goto free_io_dummy; |
aff063e2 JK |
2705 | } |
2706 | ||
2707 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2708 | if (err) { |
2709 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2710 | goto free_meta_inode; |
a07ef784 | 2711 | } |
aff063e2 | 2712 | |
3c62be17 JK |
2713 | /* Initialize device list */ |
2714 | err = f2fs_scan_devices(sbi); | |
2715 | if (err) { | |
2716 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2717 | goto free_devices; | |
2718 | } | |
2719 | ||
aff063e2 JK |
2720 | sbi->total_valid_node_count = |
2721 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2722 | percpu_counter_set(&sbi->total_valid_inode_count, |
2723 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2724 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2725 | sbi->total_valid_block_count = | |
2726 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2727 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2728 | sbi->reserved_blocks = 0; |
80d42145 | 2729 | sbi->current_reserved_blocks = 0; |
7e65be49 | 2730 | limit_reserve_root(sbi); |
41382ec4 | 2731 | |
c227f912 CY |
2732 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2733 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2734 | spin_lock_init(&sbi->inode_lock[i]); | |
2735 | } | |
aff063e2 | 2736 | |
1dcc336b CY |
2737 | init_extent_cache_info(sbi); |
2738 | ||
6451e041 | 2739 | init_ino_entry_info(sbi); |
aff063e2 JK |
2740 | |
2741 | /* setup f2fs internal modules */ | |
2742 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2743 | if (err) { |
2744 | f2fs_msg(sb, KERN_ERR, | |
2745 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2746 | goto free_sm; |
a07ef784 | 2747 | } |
aff063e2 | 2748 | err = build_node_manager(sbi); |
a07ef784 NJ |
2749 | if (err) { |
2750 | f2fs_msg(sb, KERN_ERR, | |
2751 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2752 | goto free_nm; |
a07ef784 | 2753 | } |
aff063e2 | 2754 | |
8f1dbbbb SL |
2755 | /* For write statistics */ |
2756 | if (sb->s_bdev->bd_part) | |
2757 | sbi->sectors_written_start = | |
2758 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2759 | ||
2760 | /* Read accumulated write IO statistics if exists */ | |
2761 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2762 | if (__exist_node_summaries(sbi)) | |
2763 | sbi->kbytes_written = | |
b2dde6fc | 2764 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2765 | |
aff063e2 JK |
2766 | build_gc_manager(sbi); |
2767 | ||
2768 | /* get an inode for node space */ | |
2769 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2770 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2771 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2772 | err = PTR_ERR(sbi->node_inode); |
2773 | goto free_nm; | |
2774 | } | |
2775 | ||
aa51d08a JK |
2776 | err = f2fs_build_stats(sbi); |
2777 | if (err) | |
bae01eda | 2778 | goto free_node_inode; |
aa51d08a | 2779 | |
aff063e2 JK |
2780 | /* read root inode and dentry */ |
2781 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2782 | if (IS_ERR(root)) { | |
a07ef784 | 2783 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 | 2784 | err = PTR_ERR(root); |
bae01eda | 2785 | goto free_stats; |
aff063e2 | 2786 | } |
8f99a946 | 2787 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2788 | iput(root); |
8f99a946 | 2789 | err = -EINVAL; |
9d847950 | 2790 | goto free_node_inode; |
8f99a946 | 2791 | } |
aff063e2 JK |
2792 | |
2793 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2794 | if (!sb->s_root) { | |
2795 | err = -ENOMEM; | |
2796 | goto free_root_inode; | |
2797 | } | |
2798 | ||
dc6b2055 | 2799 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2800 | if (err) |
a398101a | 2801 | goto free_root_inode; |
b59d0bae | 2802 | |
ea676733 JK |
2803 | #ifdef CONFIG_QUOTA |
2804 | /* | |
2805 | * Turn on quotas which were not enabled for read-only mounts if | |
2806 | * filesystem has quota feature, so that they are updated correctly. | |
2807 | */ | |
2808 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) { | |
2809 | err = f2fs_enable_quotas(sb); | |
2810 | if (err) { | |
2811 | f2fs_msg(sb, KERN_ERR, | |
2812 | "Cannot turn on quotas: error %d", err); | |
2813 | goto free_sysfs; | |
2814 | } | |
2815 | } | |
2816 | #endif | |
4b2414d0 CY |
2817 | /* if there are nt orphan nodes free them */ |
2818 | err = recover_orphan_inodes(sbi); | |
2819 | if (err) | |
ea676733 | 2820 | goto free_meta; |
4b2414d0 | 2821 | |
6437d1b0 JK |
2822 | /* recover fsynced data */ |
2823 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2824 | /* |
2825 | * mount should be failed, when device has readonly mode, and | |
2826 | * previous checkpoint was not done by clean system shutdown. | |
2827 | */ | |
2828 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2829 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2830 | err = -EROFS; |
4b2414d0 | 2831 | goto free_meta; |
081d78c2 | 2832 | } |
2adc3505 CY |
2833 | |
2834 | if (need_fsck) | |
2835 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2836 | ||
a468f0ef JK |
2837 | if (!retry) |
2838 | goto skip_recovery; | |
2839 | ||
6781eabb JK |
2840 | err = recover_fsync_data(sbi, false); |
2841 | if (err < 0) { | |
2adc3505 | 2842 | need_fsck = true; |
6437d1b0 | 2843 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2844 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2845 | goto free_meta; |
ed2e621a | 2846 | } |
6781eabb JK |
2847 | } else { |
2848 | err = recover_fsync_data(sbi, true); | |
2849 | ||
2850 | if (!f2fs_readonly(sb) && err > 0) { | |
2851 | err = -EINVAL; | |
2852 | f2fs_msg(sb, KERN_ERR, | |
2853 | "Need to recover fsync data"); | |
ea676733 | 2854 | goto free_meta; |
6781eabb | 2855 | } |
6437d1b0 | 2856 | } |
a468f0ef | 2857 | skip_recovery: |
315df839 JK |
2858 | /* recover_fsync_data() cleared this already */ |
2859 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2860 | |
6437d1b0 JK |
2861 | /* |
2862 | * If filesystem is not mounted as read-only then | |
2863 | * do start the gc_thread. | |
2864 | */ | |
6c029932 | 2865 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2866 | /* After POR, we can run background GC thread.*/ |
2867 | err = start_gc_thread(sbi); | |
2868 | if (err) | |
4b2414d0 | 2869 | goto free_meta; |
6437d1b0 | 2870 | } |
dabc4a5c | 2871 | kfree(options); |
da554e48 | 2872 | |
2873 | /* recover broken superblock */ | |
f2353d7b | 2874 | if (recovery) { |
41214b3c CY |
2875 | err = f2fs_commit_super(sbi, true); |
2876 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2877 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2878 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2879 | } |
2880 | ||
bae01eda CY |
2881 | f2fs_join_shrinker(sbi); |
2882 | ||
84b89e5d JK |
2883 | f2fs_tuning_parameters(sbi); |
2884 | ||
1200abb2 JK |
2885 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2886 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2887 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2888 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2889 | return 0; |
6437d1b0 | 2890 | |
4b2414d0 | 2891 | free_meta: |
ea676733 JK |
2892 | #ifdef CONFIG_QUOTA |
2893 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) | |
2894 | f2fs_quota_off_umount(sbi->sb); | |
2895 | #endif | |
0f18b462 | 2896 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2897 | /* |
2898 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2899 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2900 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2901 | * falls into an infinite loop in sync_meta_pages(). | |
2902 | */ | |
2903 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
ea676733 | 2904 | #ifdef CONFIG_QUOTA |
4b2414d0 | 2905 | free_sysfs: |
ea676733 | 2906 | #endif |
dc6b2055 | 2907 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2908 | free_root_inode: |
2909 | dput(sb->s_root); | |
2910 | sb->s_root = NULL; | |
bae01eda CY |
2911 | free_stats: |
2912 | f2fs_destroy_stats(sbi); | |
aff063e2 | 2913 | free_node_inode: |
d41065e2 | 2914 | release_ino_entry(sbi, true); |
bae01eda | 2915 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
aff063e2 JK |
2916 | iput(sbi->node_inode); |
2917 | free_nm: | |
2918 | destroy_node_manager(sbi); | |
2919 | free_sm: | |
2920 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2921 | free_devices: |
2922 | destroy_device_list(sbi); | |
aff063e2 JK |
2923 | kfree(sbi->ckpt); |
2924 | free_meta_inode: | |
2925 | make_bad_inode(sbi->meta_inode); | |
2926 | iput(sbi->meta_inode); | |
0a595eba JK |
2927 | free_io_dummy: |
2928 | mempool_destroy(sbi->write_io_dummy); | |
d7997e63 CY |
2929 | free_percpu: |
2930 | destroy_percpu_info(sbi); | |
2931 | free_bio_info: | |
a912b54d JK |
2932 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2933 | kfree(sbi->write_io[i]); | |
d7997e63 | 2934 | free_options: |
4b2414d0 CY |
2935 | #ifdef CONFIG_QUOTA |
2936 | for (i = 0; i < MAXQUOTAS; i++) | |
2937 | kfree(sbi->s_qf_names[i]); | |
2938 | #endif | |
dabc4a5c | 2939 | kfree(options); |
aff063e2 | 2940 | free_sb_buf: |
b39f0de2 | 2941 | kfree(raw_super); |
aff063e2 | 2942 | free_sbi: |
43b6573b KM |
2943 | if (sbi->s_chksum_driver) |
2944 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2945 | kfree(sbi); |
ed2e621a JK |
2946 | |
2947 | /* give only one another chance */ | |
2948 | if (retry) { | |
9df47ba7 | 2949 | retry = false; |
ed2e621a JK |
2950 | shrink_dcache_sb(sb); |
2951 | goto try_onemore; | |
2952 | } | |
aff063e2 JK |
2953 | return err; |
2954 | } | |
2955 | ||
2956 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2957 | const char *dev_name, void *data) | |
2958 | { | |
2959 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2960 | } | |
2961 | ||
30a5537f JK |
2962 | static void kill_f2fs_super(struct super_block *sb) |
2963 | { | |
cce13252 | 2964 | if (sb->s_root) { |
caf0047e | 2965 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2966 | stop_gc_thread(F2FS_SB(sb)); |
2967 | stop_discard_thread(F2FS_SB(sb)); | |
2968 | } | |
30a5537f JK |
2969 | kill_block_super(sb); |
2970 | } | |
2971 | ||
aff063e2 JK |
2972 | static struct file_system_type f2fs_fs_type = { |
2973 | .owner = THIS_MODULE, | |
2974 | .name = "f2fs", | |
2975 | .mount = f2fs_mount, | |
30a5537f | 2976 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2977 | .fs_flags = FS_REQUIRES_DEV, |
2978 | }; | |
7f78e035 | 2979 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2980 | |
6e6093a8 | 2981 | static int __init init_inodecache(void) |
aff063e2 | 2982 | { |
5d097056 VD |
2983 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2984 | sizeof(struct f2fs_inode_info), 0, | |
2985 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2986 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2987 | return -ENOMEM; |
2988 | return 0; | |
2989 | } | |
2990 | ||
2991 | static void destroy_inodecache(void) | |
2992 | { | |
2993 | /* | |
2994 | * Make sure all delayed rcu free inodes are flushed before we | |
2995 | * destroy cache. | |
2996 | */ | |
2997 | rcu_barrier(); | |
2998 | kmem_cache_destroy(f2fs_inode_cachep); | |
2999 | } | |
3000 | ||
3001 | static int __init init_f2fs_fs(void) | |
3002 | { | |
3003 | int err; | |
3004 | ||
c0508650 JK |
3005 | f2fs_build_trace_ios(); |
3006 | ||
aff063e2 JK |
3007 | err = init_inodecache(); |
3008 | if (err) | |
3009 | goto fail; | |
3010 | err = create_node_manager_caches(); | |
3011 | if (err) | |
9890ff3f | 3012 | goto free_inodecache; |
7fd9e544 | 3013 | err = create_segment_manager_caches(); |
aff063e2 | 3014 | if (err) |
9890ff3f | 3015 | goto free_node_manager_caches; |
aff063e2 JK |
3016 | err = create_checkpoint_caches(); |
3017 | if (err) | |
06292073 | 3018 | goto free_segment_manager_caches; |
1dcc336b CY |
3019 | err = create_extent_cache(); |
3020 | if (err) | |
3021 | goto free_checkpoint_caches; | |
dc6b2055 | 3022 | err = f2fs_init_sysfs(); |
a398101a | 3023 | if (err) |
1dcc336b | 3024 | goto free_extent_cache; |
2658e50d | 3025 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 3026 | if (err) |
a398101a | 3027 | goto free_sysfs; |
2658e50d JK |
3028 | err = register_filesystem(&f2fs_fs_type); |
3029 | if (err) | |
3030 | goto free_shrinker; | |
787c7b8c CY |
3031 | err = f2fs_create_root_stats(); |
3032 | if (err) | |
3033 | goto free_filesystem; | |
9890ff3f ZH |
3034 | return 0; |
3035 | ||
787c7b8c CY |
3036 | free_filesystem: |
3037 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
3038 | free_shrinker: |
3039 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 3040 | free_sysfs: |
dc6b2055 | 3041 | f2fs_exit_sysfs(); |
1dcc336b CY |
3042 | free_extent_cache: |
3043 | destroy_extent_cache(); | |
9890ff3f ZH |
3044 | free_checkpoint_caches: |
3045 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
3046 | free_segment_manager_caches: |
3047 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
3048 | free_node_manager_caches: |
3049 | destroy_node_manager_caches(); | |
3050 | free_inodecache: | |
3051 | destroy_inodecache(); | |
aff063e2 JK |
3052 | fail: |
3053 | return err; | |
3054 | } | |
3055 | ||
3056 | static void __exit exit_f2fs_fs(void) | |
3057 | { | |
4589d25d | 3058 | f2fs_destroy_root_stats(); |
aff063e2 | 3059 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 3060 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 3061 | f2fs_exit_sysfs(); |
fdf6c8be | 3062 | destroy_extent_cache(); |
aff063e2 | 3063 | destroy_checkpoint_caches(); |
5dcd8a71 | 3064 | destroy_segment_manager_caches(); |
aff063e2 JK |
3065 | destroy_node_manager_caches(); |
3066 | destroy_inodecache(); | |
351f4fba | 3067 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
3068 | } |
3069 | ||
3070 | module_init(init_f2fs_fs) | |
3071 | module_exit(exit_f2fs_fs) | |
3072 | ||
3073 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
3074 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
3075 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 3076 |