Commit | Line | Data |
---|---|---|
0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 | 6 | #include "xfs.h" |
a844f451 | 7 | #include "xfs_fs.h" |
4fb6e8ad | 8 | #include "xfs_format.h" |
239880ef DC |
9 | #include "xfs_log_format.h" |
10 | #include "xfs_trans_resv.h" | |
dc42375d | 11 | #include "xfs_bit.h" |
5467b34b | 12 | #include "xfs_shared.h" |
1da177e4 | 13 | #include "xfs_mount.h" |
81f40041 | 14 | #include "xfs_defer.h" |
239880ef | 15 | #include "xfs_trans.h" |
1da177e4 LT |
16 | #include "xfs_trans_priv.h" |
17 | #include "xfs_extfree_item.h" | |
1234351c | 18 | #include "xfs_log.h" |
340785cc DW |
19 | #include "xfs_btree.h" |
20 | #include "xfs_rmap.h" | |
81f40041 CH |
21 | #include "xfs_alloc.h" |
22 | #include "xfs_bmap.h" | |
23 | #include "xfs_trace.h" | |
a5155b87 | 24 | #include "xfs_error.h" |
9817aa80 | 25 | #include "xfs_log_priv.h" |
86ffa471 | 26 | #include "xfs_log_recover.h" |
1da177e4 LT |
27 | |
28 | kmem_zone_t *xfs_efi_zone; | |
29 | kmem_zone_t *xfs_efd_zone; | |
30 | ||
10d0c6e0 DW |
31 | static const struct xfs_item_ops xfs_efi_item_ops; |
32 | ||
7bfa31d8 CH |
33 | static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip) |
34 | { | |
35 | return container_of(lip, struct xfs_efi_log_item, efi_item); | |
36 | } | |
1da177e4 | 37 | |
9817aa80 | 38 | STATIC void |
7bfa31d8 CH |
39 | xfs_efi_item_free( |
40 | struct xfs_efi_log_item *efip) | |
7d795ca3 | 41 | { |
b1c5ebb2 | 42 | kmem_free(efip->efi_item.li_lv_shadow); |
7bfa31d8 | 43 | if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS) |
f0e2d93c | 44 | kmem_free(efip); |
7bfa31d8 | 45 | else |
377bcd5f | 46 | kmem_cache_free(xfs_efi_zone, efip); |
7d795ca3 | 47 | } |
1da177e4 | 48 | |
0612d116 DC |
49 | /* |
50 | * Freeing the efi requires that we remove it from the AIL if it has already | |
51 | * been placed there. However, the EFI may not yet have been placed in the AIL | |
52 | * when called by xfs_efi_release() from EFD processing due to the ordering of | |
53 | * committed vs unpin operations in bulk insert operations. Hence the reference | |
54 | * count to ensure only the last caller frees the EFI. | |
55 | */ | |
10d0c6e0 | 56 | STATIC void |
0612d116 DC |
57 | xfs_efi_release( |
58 | struct xfs_efi_log_item *efip) | |
59 | { | |
60 | ASSERT(atomic_read(&efip->efi_refcount) > 0); | |
61 | if (atomic_dec_and_test(&efip->efi_refcount)) { | |
65587929 | 62 | xfs_trans_ail_delete(&efip->efi_item, SHUTDOWN_LOG_IO_ERROR); |
0612d116 DC |
63 | xfs_efi_item_free(efip); |
64 | } | |
65 | } | |
66 | ||
1da177e4 LT |
67 | /* |
68 | * This returns the number of iovecs needed to log the given efi item. | |
69 | * We only need 1 iovec for an efi item. It just logs the efi_log_format | |
70 | * structure. | |
71 | */ | |
166d1368 DC |
72 | static inline int |
73 | xfs_efi_item_sizeof( | |
74 | struct xfs_efi_log_item *efip) | |
75 | { | |
76 | return sizeof(struct xfs_efi_log_format) + | |
77 | (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t); | |
78 | } | |
79 | ||
80 | STATIC void | |
7bfa31d8 | 81 | xfs_efi_item_size( |
166d1368 DC |
82 | struct xfs_log_item *lip, |
83 | int *nvecs, | |
84 | int *nbytes) | |
1da177e4 | 85 | { |
166d1368 DC |
86 | *nvecs += 1; |
87 | *nbytes += xfs_efi_item_sizeof(EFI_ITEM(lip)); | |
1da177e4 LT |
88 | } |
89 | ||
90 | /* | |
91 | * This is called to fill in the vector of log iovecs for the | |
92 | * given efi log item. We use only 1 iovec, and we point that | |
93 | * at the efi_log_format structure embedded in the efi item. | |
94 | * It is at this point that we assert that all of the extent | |
95 | * slots in the efi item have been filled. | |
96 | */ | |
97 | STATIC void | |
7bfa31d8 CH |
98 | xfs_efi_item_format( |
99 | struct xfs_log_item *lip, | |
bde7cff6 | 100 | struct xfs_log_vec *lv) |
1da177e4 | 101 | { |
7bfa31d8 | 102 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
bde7cff6 | 103 | struct xfs_log_iovec *vecp = NULL; |
1da177e4 | 104 | |
b199c8a4 DC |
105 | ASSERT(atomic_read(&efip->efi_next_extent) == |
106 | efip->efi_format.efi_nextents); | |
1da177e4 LT |
107 | |
108 | efip->efi_format.efi_type = XFS_LI_EFI; | |
1da177e4 LT |
109 | efip->efi_format.efi_size = 1; |
110 | ||
bde7cff6 | 111 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFI_FORMAT, |
1234351c CH |
112 | &efip->efi_format, |
113 | xfs_efi_item_sizeof(efip)); | |
1da177e4 LT |
114 | } |
115 | ||
116 | ||
1da177e4 | 117 | /* |
8d99fe92 BF |
118 | * The unpin operation is the last place an EFI is manipulated in the log. It is |
119 | * either inserted in the AIL or aborted in the event of a log I/O error. In | |
120 | * either case, the EFI transaction has been successfully committed to make it | |
121 | * this far. Therefore, we expect whoever committed the EFI to either construct | |
122 | * and commit the EFD or drop the EFD's reference in the event of error. Simply | |
123 | * drop the log's EFI reference now that the log is done with it. | |
1da177e4 | 124 | */ |
1da177e4 | 125 | STATIC void |
7bfa31d8 CH |
126 | xfs_efi_item_unpin( |
127 | struct xfs_log_item *lip, | |
128 | int remove) | |
1da177e4 | 129 | { |
7bfa31d8 | 130 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
5e4b5386 | 131 | xfs_efi_release(efip); |
1da177e4 LT |
132 | } |
133 | ||
8d99fe92 BF |
134 | /* |
135 | * The EFI has been either committed or aborted if the transaction has been | |
136 | * cancelled. If the transaction was cancelled, an EFD isn't going to be | |
137 | * constructed and thus we free the EFI here directly. | |
138 | */ | |
1da177e4 | 139 | STATIC void |
ddf92053 | 140 | xfs_efi_item_release( |
7bfa31d8 | 141 | struct xfs_log_item *lip) |
1da177e4 | 142 | { |
ddf92053 | 143 | xfs_efi_release(EFI_ITEM(lip)); |
1da177e4 LT |
144 | } |
145 | ||
1da177e4 LT |
146 | /* |
147 | * Allocate and initialize an efi item with the given number of extents. | |
148 | */ | |
9817aa80 | 149 | STATIC struct xfs_efi_log_item * |
7bfa31d8 CH |
150 | xfs_efi_init( |
151 | struct xfs_mount *mp, | |
152 | uint nextents) | |
1da177e4 LT |
153 | |
154 | { | |
7bfa31d8 | 155 | struct xfs_efi_log_item *efip; |
1da177e4 LT |
156 | uint size; |
157 | ||
158 | ASSERT(nextents > 0); | |
159 | if (nextents > XFS_EFI_MAX_FAST_EXTENTS) { | |
82ff450b | 160 | size = (uint)(sizeof(struct xfs_efi_log_item) + |
1da177e4 | 161 | ((nextents - 1) * sizeof(xfs_extent_t))); |
707e0dda | 162 | efip = kmem_zalloc(size, 0); |
1da177e4 | 163 | } else { |
707e0dda | 164 | efip = kmem_zone_zalloc(xfs_efi_zone, 0); |
1da177e4 LT |
165 | } |
166 | ||
43f5efc5 | 167 | xfs_log_item_init(mp, &efip->efi_item, XFS_LI_EFI, &xfs_efi_item_ops); |
1da177e4 | 168 | efip->efi_format.efi_nextents = nextents; |
db9d67d6 | 169 | efip->efi_format.efi_id = (uintptr_t)(void *)efip; |
b199c8a4 | 170 | atomic_set(&efip->efi_next_extent, 0); |
666d644c | 171 | atomic_set(&efip->efi_refcount, 2); |
1da177e4 | 172 | |
7bfa31d8 | 173 | return efip; |
1da177e4 LT |
174 | } |
175 | ||
6d192a9b TS |
176 | /* |
177 | * Copy an EFI format buffer from the given buf, and into the destination | |
178 | * EFI format structure. | |
179 | * The given buffer can be in 32 bit or 64 bit form (which has different padding), | |
180 | * one of which will be the native format for this kernel. | |
181 | * It will handle the conversion of formats if necessary. | |
182 | */ | |
9817aa80 | 183 | STATIC int |
6d192a9b TS |
184 | xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt) |
185 | { | |
4e0d5f92 | 186 | xfs_efi_log_format_t *src_efi_fmt = buf->i_addr; |
6d192a9b TS |
187 | uint i; |
188 | uint len = sizeof(xfs_efi_log_format_t) + | |
189 | (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t); | |
190 | uint len32 = sizeof(xfs_efi_log_format_32_t) + | |
191 | (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t); | |
192 | uint len64 = sizeof(xfs_efi_log_format_64_t) + | |
193 | (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t); | |
194 | ||
195 | if (buf->i_len == len) { | |
196 | memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len); | |
197 | return 0; | |
198 | } else if (buf->i_len == len32) { | |
4e0d5f92 | 199 | xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr; |
6d192a9b TS |
200 | |
201 | dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type; | |
202 | dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size; | |
203 | dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents; | |
204 | dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id; | |
205 | for (i = 0; i < dst_efi_fmt->efi_nextents; i++) { | |
206 | dst_efi_fmt->efi_extents[i].ext_start = | |
207 | src_efi_fmt_32->efi_extents[i].ext_start; | |
208 | dst_efi_fmt->efi_extents[i].ext_len = | |
209 | src_efi_fmt_32->efi_extents[i].ext_len; | |
210 | } | |
211 | return 0; | |
212 | } else if (buf->i_len == len64) { | |
4e0d5f92 | 213 | xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr; |
6d192a9b TS |
214 | |
215 | dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type; | |
216 | dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size; | |
217 | dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents; | |
218 | dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id; | |
219 | for (i = 0; i < dst_efi_fmt->efi_nextents; i++) { | |
220 | dst_efi_fmt->efi_extents[i].ext_start = | |
221 | src_efi_fmt_64->efi_extents[i].ext_start; | |
222 | dst_efi_fmt->efi_extents[i].ext_len = | |
223 | src_efi_fmt_64->efi_extents[i].ext_len; | |
224 | } | |
225 | return 0; | |
226 | } | |
a5155b87 | 227 | XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); |
2451337d | 228 | return -EFSCORRUPTED; |
6d192a9b TS |
229 | } |
230 | ||
7bfa31d8 | 231 | static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip) |
7d795ca3 | 232 | { |
7bfa31d8 CH |
233 | return container_of(lip, struct xfs_efd_log_item, efd_item); |
234 | } | |
1da177e4 | 235 | |
7bfa31d8 CH |
236 | STATIC void |
237 | xfs_efd_item_free(struct xfs_efd_log_item *efdp) | |
238 | { | |
b1c5ebb2 | 239 | kmem_free(efdp->efd_item.li_lv_shadow); |
7bfa31d8 | 240 | if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS) |
f0e2d93c | 241 | kmem_free(efdp); |
7bfa31d8 | 242 | else |
377bcd5f | 243 | kmem_cache_free(xfs_efd_zone, efdp); |
7d795ca3 | 244 | } |
1da177e4 LT |
245 | |
246 | /* | |
247 | * This returns the number of iovecs needed to log the given efd item. | |
248 | * We only need 1 iovec for an efd item. It just logs the efd_log_format | |
249 | * structure. | |
250 | */ | |
166d1368 DC |
251 | static inline int |
252 | xfs_efd_item_sizeof( | |
253 | struct xfs_efd_log_item *efdp) | |
254 | { | |
255 | return sizeof(xfs_efd_log_format_t) + | |
256 | (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t); | |
257 | } | |
258 | ||
259 | STATIC void | |
7bfa31d8 | 260 | xfs_efd_item_size( |
166d1368 DC |
261 | struct xfs_log_item *lip, |
262 | int *nvecs, | |
263 | int *nbytes) | |
1da177e4 | 264 | { |
166d1368 DC |
265 | *nvecs += 1; |
266 | *nbytes += xfs_efd_item_sizeof(EFD_ITEM(lip)); | |
1da177e4 LT |
267 | } |
268 | ||
269 | /* | |
270 | * This is called to fill in the vector of log iovecs for the | |
271 | * given efd log item. We use only 1 iovec, and we point that | |
272 | * at the efd_log_format structure embedded in the efd item. | |
273 | * It is at this point that we assert that all of the extent | |
274 | * slots in the efd item have been filled. | |
275 | */ | |
276 | STATIC void | |
7bfa31d8 CH |
277 | xfs_efd_item_format( |
278 | struct xfs_log_item *lip, | |
bde7cff6 | 279 | struct xfs_log_vec *lv) |
1da177e4 | 280 | { |
7bfa31d8 | 281 | struct xfs_efd_log_item *efdp = EFD_ITEM(lip); |
bde7cff6 | 282 | struct xfs_log_iovec *vecp = NULL; |
1da177e4 LT |
283 | |
284 | ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents); | |
285 | ||
286 | efdp->efd_format.efd_type = XFS_LI_EFD; | |
1da177e4 LT |
287 | efdp->efd_format.efd_size = 1; |
288 | ||
bde7cff6 | 289 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFD_FORMAT, |
1234351c CH |
290 | &efdp->efd_format, |
291 | xfs_efd_item_sizeof(efdp)); | |
1da177e4 LT |
292 | } |
293 | ||
8d99fe92 BF |
294 | /* |
295 | * The EFD is either committed or aborted if the transaction is cancelled. If | |
296 | * the transaction is cancelled, drop our reference to the EFI and free the EFD. | |
297 | */ | |
1da177e4 | 298 | STATIC void |
ddf92053 | 299 | xfs_efd_item_release( |
7bfa31d8 | 300 | struct xfs_log_item *lip) |
1da177e4 | 301 | { |
8d99fe92 BF |
302 | struct xfs_efd_log_item *efdp = EFD_ITEM(lip); |
303 | ||
ddf92053 CH |
304 | xfs_efi_release(efdp->efd_efip); |
305 | xfs_efd_item_free(efdp); | |
1da177e4 LT |
306 | } |
307 | ||
272e42b2 | 308 | static const struct xfs_item_ops xfs_efd_item_ops = { |
9ce632a2 | 309 | .flags = XFS_ITEM_RELEASE_WHEN_COMMITTED, |
7bfa31d8 CH |
310 | .iop_size = xfs_efd_item_size, |
311 | .iop_format = xfs_efd_item_format, | |
ddf92053 | 312 | .iop_release = xfs_efd_item_release, |
1da177e4 LT |
313 | }; |
314 | ||
1da177e4 | 315 | /* |
9c5e7c2a CH |
316 | * Allocate an "extent free done" log item that will hold nextents worth of |
317 | * extents. The caller must use all nextents extents, because we are not | |
318 | * flexible about this at all. | |
1da177e4 | 319 | */ |
81f40041 | 320 | static struct xfs_efd_log_item * |
9c5e7c2a CH |
321 | xfs_trans_get_efd( |
322 | struct xfs_trans *tp, | |
323 | struct xfs_efi_log_item *efip, | |
324 | unsigned int nextents) | |
1da177e4 | 325 | { |
9c5e7c2a | 326 | struct xfs_efd_log_item *efdp; |
1da177e4 LT |
327 | |
328 | ASSERT(nextents > 0); | |
9c5e7c2a | 329 | |
1da177e4 | 330 | if (nextents > XFS_EFD_MAX_FAST_EXTENTS) { |
9c5e7c2a CH |
331 | efdp = kmem_zalloc(sizeof(struct xfs_efd_log_item) + |
332 | (nextents - 1) * sizeof(struct xfs_extent), | |
707e0dda | 333 | 0); |
1da177e4 | 334 | } else { |
707e0dda | 335 | efdp = kmem_zone_zalloc(xfs_efd_zone, 0); |
1da177e4 LT |
336 | } |
337 | ||
9c5e7c2a CH |
338 | xfs_log_item_init(tp->t_mountp, &efdp->efd_item, XFS_LI_EFD, |
339 | &xfs_efd_item_ops); | |
1da177e4 LT |
340 | efdp->efd_efip = efip; |
341 | efdp->efd_format.efd_nextents = nextents; | |
342 | efdp->efd_format.efd_efi_id = efip->efi_format.efi_id; | |
343 | ||
9c5e7c2a | 344 | xfs_trans_add_item(tp, &efdp->efd_item); |
7bfa31d8 | 345 | return efdp; |
1da177e4 | 346 | } |
dc42375d | 347 | |
81f40041 CH |
348 | /* |
349 | * Free an extent and log it to the EFD. Note that the transaction is marked | |
350 | * dirty regardless of whether the extent free succeeds or fails to support the | |
351 | * EFI/EFD lifecycle rules. | |
352 | */ | |
353 | static int | |
354 | xfs_trans_free_extent( | |
355 | struct xfs_trans *tp, | |
356 | struct xfs_efd_log_item *efdp, | |
357 | xfs_fsblock_t start_block, | |
358 | xfs_extlen_t ext_len, | |
359 | const struct xfs_owner_info *oinfo, | |
360 | bool skip_discard) | |
361 | { | |
362 | struct xfs_mount *mp = tp->t_mountp; | |
363 | struct xfs_extent *extp; | |
364 | uint next_extent; | |
365 | xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, start_block); | |
366 | xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, | |
367 | start_block); | |
368 | int error; | |
369 | ||
370 | trace_xfs_bmap_free_deferred(tp->t_mountp, agno, 0, agbno, ext_len); | |
371 | ||
372 | error = __xfs_free_extent(tp, start_block, ext_len, | |
373 | oinfo, XFS_AG_RESV_NONE, skip_discard); | |
374 | /* | |
375 | * Mark the transaction dirty, even on error. This ensures the | |
376 | * transaction is aborted, which: | |
377 | * | |
378 | * 1.) releases the EFI and frees the EFD | |
379 | * 2.) shuts down the filesystem | |
380 | */ | |
381 | tp->t_flags |= XFS_TRANS_DIRTY; | |
382 | set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); | |
383 | ||
384 | next_extent = efdp->efd_next_extent; | |
385 | ASSERT(next_extent < efdp->efd_format.efd_nextents); | |
386 | extp = &(efdp->efd_format.efd_extents[next_extent]); | |
387 | extp->ext_start = start_block; | |
388 | extp->ext_len = ext_len; | |
389 | efdp->efd_next_extent++; | |
390 | ||
391 | return error; | |
392 | } | |
393 | ||
394 | /* Sort bmap items by AG. */ | |
395 | static int | |
396 | xfs_extent_free_diff_items( | |
397 | void *priv, | |
398 | struct list_head *a, | |
399 | struct list_head *b) | |
400 | { | |
401 | struct xfs_mount *mp = priv; | |
402 | struct xfs_extent_free_item *ra; | |
403 | struct xfs_extent_free_item *rb; | |
404 | ||
405 | ra = container_of(a, struct xfs_extent_free_item, xefi_list); | |
406 | rb = container_of(b, struct xfs_extent_free_item, xefi_list); | |
407 | return XFS_FSB_TO_AGNO(mp, ra->xefi_startblock) - | |
408 | XFS_FSB_TO_AGNO(mp, rb->xefi_startblock); | |
409 | } | |
410 | ||
81f40041 CH |
411 | /* Log a free extent to the intent item. */ |
412 | STATIC void | |
413 | xfs_extent_free_log_item( | |
414 | struct xfs_trans *tp, | |
c1f09188 CH |
415 | struct xfs_efi_log_item *efip, |
416 | struct xfs_extent_free_item *free) | |
81f40041 | 417 | { |
81f40041 CH |
418 | uint next_extent; |
419 | struct xfs_extent *extp; | |
420 | ||
81f40041 CH |
421 | tp->t_flags |= XFS_TRANS_DIRTY; |
422 | set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags); | |
423 | ||
424 | /* | |
425 | * atomic_inc_return gives us the value after the increment; | |
426 | * we want to use it as an array index so we need to subtract 1 from | |
427 | * it. | |
428 | */ | |
429 | next_extent = atomic_inc_return(&efip->efi_next_extent) - 1; | |
430 | ASSERT(next_extent < efip->efi_format.efi_nextents); | |
431 | extp = &efip->efi_format.efi_extents[next_extent]; | |
432 | extp->ext_start = free->xefi_startblock; | |
433 | extp->ext_len = free->xefi_blockcount; | |
434 | } | |
435 | ||
13a83333 | 436 | static struct xfs_log_item * |
c1f09188 CH |
437 | xfs_extent_free_create_intent( |
438 | struct xfs_trans *tp, | |
439 | struct list_head *items, | |
d367a868 CH |
440 | unsigned int count, |
441 | bool sort) | |
c1f09188 CH |
442 | { |
443 | struct xfs_mount *mp = tp->t_mountp; | |
444 | struct xfs_efi_log_item *efip = xfs_efi_init(mp, count); | |
445 | struct xfs_extent_free_item *free; | |
446 | ||
447 | ASSERT(count > 0); | |
448 | ||
449 | xfs_trans_add_item(tp, &efip->efi_item); | |
d367a868 CH |
450 | if (sort) |
451 | list_sort(mp, items, xfs_extent_free_diff_items); | |
c1f09188 CH |
452 | list_for_each_entry(free, items, xefi_list) |
453 | xfs_extent_free_log_item(tp, efip, free); | |
13a83333 | 454 | return &efip->efi_item; |
c1f09188 CH |
455 | } |
456 | ||
81f40041 | 457 | /* Get an EFD so we can process all the free extents. */ |
f09d167c | 458 | static struct xfs_log_item * |
81f40041 CH |
459 | xfs_extent_free_create_done( |
460 | struct xfs_trans *tp, | |
13a83333 | 461 | struct xfs_log_item *intent, |
81f40041 CH |
462 | unsigned int count) |
463 | { | |
f09d167c | 464 | return &xfs_trans_get_efd(tp, EFI_ITEM(intent), count)->efd_item; |
81f40041 CH |
465 | } |
466 | ||
467 | /* Process a free extent. */ | |
468 | STATIC int | |
469 | xfs_extent_free_finish_item( | |
470 | struct xfs_trans *tp, | |
f09d167c | 471 | struct xfs_log_item *done, |
81f40041 | 472 | struct list_head *item, |
3ec1b26c | 473 | struct xfs_btree_cur **state) |
81f40041 CH |
474 | { |
475 | struct xfs_extent_free_item *free; | |
476 | int error; | |
477 | ||
478 | free = container_of(item, struct xfs_extent_free_item, xefi_list); | |
f09d167c | 479 | error = xfs_trans_free_extent(tp, EFD_ITEM(done), |
81f40041 CH |
480 | free->xefi_startblock, |
481 | free->xefi_blockcount, | |
482 | &free->xefi_oinfo, free->xefi_skip_discard); | |
483 | kmem_free(free); | |
484 | return error; | |
485 | } | |
486 | ||
487 | /* Abort all pending EFIs. */ | |
488 | STATIC void | |
489 | xfs_extent_free_abort_intent( | |
13a83333 | 490 | struct xfs_log_item *intent) |
81f40041 | 491 | { |
13a83333 | 492 | xfs_efi_release(EFI_ITEM(intent)); |
81f40041 CH |
493 | } |
494 | ||
495 | /* Cancel a free extent. */ | |
496 | STATIC void | |
497 | xfs_extent_free_cancel_item( | |
498 | struct list_head *item) | |
499 | { | |
500 | struct xfs_extent_free_item *free; | |
501 | ||
502 | free = container_of(item, struct xfs_extent_free_item, xefi_list); | |
503 | kmem_free(free); | |
504 | } | |
505 | ||
506 | const struct xfs_defer_op_type xfs_extent_free_defer_type = { | |
507 | .max_items = XFS_EFI_MAX_FAST_EXTENTS, | |
81f40041 CH |
508 | .create_intent = xfs_extent_free_create_intent, |
509 | .abort_intent = xfs_extent_free_abort_intent, | |
81f40041 CH |
510 | .create_done = xfs_extent_free_create_done, |
511 | .finish_item = xfs_extent_free_finish_item, | |
512 | .cancel_item = xfs_extent_free_cancel_item, | |
513 | }; | |
514 | ||
515 | /* | |
516 | * AGFL blocks are accounted differently in the reserve pools and are not | |
517 | * inserted into the busy extent list. | |
518 | */ | |
519 | STATIC int | |
520 | xfs_agfl_free_finish_item( | |
521 | struct xfs_trans *tp, | |
f09d167c | 522 | struct xfs_log_item *done, |
81f40041 | 523 | struct list_head *item, |
3ec1b26c | 524 | struct xfs_btree_cur **state) |
81f40041 CH |
525 | { |
526 | struct xfs_mount *mp = tp->t_mountp; | |
f09d167c | 527 | struct xfs_efd_log_item *efdp = EFD_ITEM(done); |
81f40041 CH |
528 | struct xfs_extent_free_item *free; |
529 | struct xfs_extent *extp; | |
530 | struct xfs_buf *agbp; | |
531 | int error; | |
532 | xfs_agnumber_t agno; | |
533 | xfs_agblock_t agbno; | |
534 | uint next_extent; | |
535 | ||
536 | free = container_of(item, struct xfs_extent_free_item, xefi_list); | |
537 | ASSERT(free->xefi_blockcount == 1); | |
538 | agno = XFS_FSB_TO_AGNO(mp, free->xefi_startblock); | |
539 | agbno = XFS_FSB_TO_AGBNO(mp, free->xefi_startblock); | |
540 | ||
541 | trace_xfs_agfl_free_deferred(mp, agno, 0, agbno, free->xefi_blockcount); | |
542 | ||
543 | error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp); | |
544 | if (!error) | |
545 | error = xfs_free_agfl_block(tp, agno, agbno, agbp, | |
546 | &free->xefi_oinfo); | |
547 | ||
548 | /* | |
549 | * Mark the transaction dirty, even on error. This ensures the | |
550 | * transaction is aborted, which: | |
551 | * | |
552 | * 1.) releases the EFI and frees the EFD | |
553 | * 2.) shuts down the filesystem | |
554 | */ | |
555 | tp->t_flags |= XFS_TRANS_DIRTY; | |
556 | set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); | |
557 | ||
558 | next_extent = efdp->efd_next_extent; | |
559 | ASSERT(next_extent < efdp->efd_format.efd_nextents); | |
560 | extp = &(efdp->efd_format.efd_extents[next_extent]); | |
561 | extp->ext_start = free->xefi_startblock; | |
562 | extp->ext_len = free->xefi_blockcount; | |
563 | efdp->efd_next_extent++; | |
564 | ||
565 | kmem_free(free); | |
566 | return error; | |
567 | } | |
568 | ||
569 | /* sub-type with special handling for AGFL deferred frees */ | |
570 | const struct xfs_defer_op_type xfs_agfl_free_defer_type = { | |
571 | .max_items = XFS_EFI_MAX_FAST_EXTENTS, | |
81f40041 CH |
572 | .create_intent = xfs_extent_free_create_intent, |
573 | .abort_intent = xfs_extent_free_abort_intent, | |
81f40041 CH |
574 | .create_done = xfs_extent_free_create_done, |
575 | .finish_item = xfs_agfl_free_finish_item, | |
576 | .cancel_item = xfs_extent_free_cancel_item, | |
577 | }; | |
578 | ||
dc42375d DW |
579 | /* |
580 | * Process an extent free intent item that was recovered from | |
581 | * the log. We need to free the extents that it describes. | |
582 | */ | |
10d0c6e0 | 583 | STATIC int |
96b60f82 DW |
584 | xfs_efi_item_recover( |
585 | struct xfs_log_item *lip, | |
586 | struct xfs_trans *parent_tp) | |
dc42375d | 587 | { |
96b60f82 DW |
588 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
589 | struct xfs_mount *mp = parent_tp->t_mountp; | |
590 | struct xfs_efd_log_item *efdp; | |
591 | struct xfs_trans *tp; | |
592 | struct xfs_extent *extp; | |
593 | xfs_fsblock_t startblock_fsb; | |
594 | int i; | |
595 | int error = 0; | |
dc42375d | 596 | |
dc42375d DW |
597 | /* |
598 | * First check the validity of the extents described by the | |
599 | * EFI. If any are bad, then assume that all are bad and | |
600 | * just toss the EFI. | |
601 | */ | |
602 | for (i = 0; i < efip->efi_format.efi_nextents; i++) { | |
e127fafd | 603 | extp = &efip->efi_format.efi_extents[i]; |
dc42375d DW |
604 | startblock_fsb = XFS_BB_TO_FSB(mp, |
605 | XFS_FSB_TO_DADDR(mp, extp->ext_start)); | |
e127fafd DW |
606 | if (startblock_fsb == 0 || |
607 | extp->ext_len == 0 || | |
608 | startblock_fsb >= mp->m_sb.sb_dblocks || | |
609 | extp->ext_len >= mp->m_sb.sb_agblocks) { | |
dc42375d DW |
610 | /* |
611 | * This will pull the EFI from the AIL and | |
612 | * free the memory associated with it. | |
613 | */ | |
dc42375d | 614 | xfs_efi_release(efip); |
895e196f | 615 | return -EFSCORRUPTED; |
dc42375d DW |
616 | } |
617 | } | |
618 | ||
619 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp); | |
620 | if (error) | |
621 | return error; | |
622 | efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents); | |
623 | ||
624 | for (i = 0; i < efip->efi_format.efi_nextents; i++) { | |
e127fafd | 625 | extp = &efip->efi_format.efi_extents[i]; |
dc42375d | 626 | error = xfs_trans_free_extent(tp, efdp, extp->ext_start, |
7280feda DW |
627 | extp->ext_len, |
628 | &XFS_RMAP_OINFO_ANY_OWNER, false); | |
dc42375d DW |
629 | if (error) |
630 | goto abort_error; | |
631 | ||
632 | } | |
633 | ||
dc42375d DW |
634 | error = xfs_trans_commit(tp); |
635 | return error; | |
636 | ||
637 | abort_error: | |
638 | xfs_trans_cancel(tp); | |
639 | return error; | |
640 | } | |
86ffa471 | 641 | |
154c733a DW |
642 | STATIC bool |
643 | xfs_efi_item_match( | |
644 | struct xfs_log_item *lip, | |
645 | uint64_t intent_id) | |
646 | { | |
647 | return EFI_ITEM(lip)->efi_format.efi_id == intent_id; | |
648 | } | |
649 | ||
10d0c6e0 DW |
650 | static const struct xfs_item_ops xfs_efi_item_ops = { |
651 | .iop_size = xfs_efi_item_size, | |
652 | .iop_format = xfs_efi_item_format, | |
653 | .iop_unpin = xfs_efi_item_unpin, | |
654 | .iop_release = xfs_efi_item_release, | |
655 | .iop_recover = xfs_efi_item_recover, | |
154c733a | 656 | .iop_match = xfs_efi_item_match, |
10d0c6e0 DW |
657 | }; |
658 | ||
9817aa80 DW |
659 | /* |
660 | * This routine is called to create an in-core extent free intent | |
661 | * item from the efi format structure which was logged on disk. | |
662 | * It allocates an in-core efi, copies the extents from the format | |
663 | * structure into it, and adds the efi to the AIL with the given | |
664 | * LSN. | |
665 | */ | |
666 | STATIC int | |
667 | xlog_recover_efi_commit_pass2( | |
668 | struct xlog *log, | |
669 | struct list_head *buffer_list, | |
670 | struct xlog_recover_item *item, | |
671 | xfs_lsn_t lsn) | |
672 | { | |
673 | struct xfs_mount *mp = log->l_mp; | |
674 | struct xfs_efi_log_item *efip; | |
675 | struct xfs_efi_log_format *efi_formatp; | |
676 | int error; | |
677 | ||
678 | efi_formatp = item->ri_buf[0].i_addr; | |
679 | ||
680 | efip = xfs_efi_init(mp, efi_formatp->efi_nextents); | |
681 | error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format); | |
682 | if (error) { | |
683 | xfs_efi_item_free(efip); | |
684 | return error; | |
685 | } | |
686 | atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents); | |
9817aa80 | 687 | /* |
86a37174 DW |
688 | * Insert the intent into the AIL directly and drop one reference so |
689 | * that finishing or canceling the work will drop the other. | |
9817aa80 | 690 | */ |
86a37174 | 691 | xfs_trans_ail_insert(log->l_ailp, &efip->efi_item, lsn); |
9817aa80 DW |
692 | xfs_efi_release(efip); |
693 | return 0; | |
694 | } | |
695 | ||
86ffa471 DW |
696 | const struct xlog_recover_item_ops xlog_efi_item_ops = { |
697 | .item_type = XFS_LI_EFI, | |
9817aa80 | 698 | .commit_pass2 = xlog_recover_efi_commit_pass2, |
86ffa471 DW |
699 | }; |
700 | ||
9817aa80 DW |
701 | /* |
702 | * This routine is called when an EFD format structure is found in a committed | |
703 | * transaction in the log. Its purpose is to cancel the corresponding EFI if it | |
704 | * was still in the log. To do this it searches the AIL for the EFI with an id | |
705 | * equal to that in the EFD format structure. If we find it we drop the EFD | |
706 | * reference, which removes the EFI from the AIL and frees it. | |
707 | */ | |
708 | STATIC int | |
709 | xlog_recover_efd_commit_pass2( | |
710 | struct xlog *log, | |
711 | struct list_head *buffer_list, | |
712 | struct xlog_recover_item *item, | |
713 | xfs_lsn_t lsn) | |
714 | { | |
9817aa80 | 715 | struct xfs_efd_log_format *efd_formatp; |
9817aa80 DW |
716 | |
717 | efd_formatp = item->ri_buf[0].i_addr; | |
718 | ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) + | |
719 | ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) || | |
720 | (item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) + | |
721 | ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t))))); | |
9817aa80 | 722 | |
154c733a | 723 | xlog_recover_release_intent(log, XFS_LI_EFI, efd_formatp->efd_efi_id); |
9817aa80 DW |
724 | return 0; |
725 | } | |
726 | ||
86ffa471 DW |
727 | const struct xlog_recover_item_ops xlog_efd_item_ops = { |
728 | .item_type = XFS_LI_EFD, | |
9817aa80 | 729 | .commit_pass2 = xlog_recover_efd_commit_pass2, |
86ffa471 | 730 | }; |