Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
f7ab093f MM |
2 | /* |
3 | * (C) 2001 Clemson University and The University of Chicago | |
4 | * | |
5 | * See COPYING in top-level directory. | |
6 | */ | |
7 | ||
8 | /* | |
8bb8aefd | 9 | * The ORANGEFS Linux kernel support allows ORANGEFS volumes to be mounted and |
f7ab093f MM |
10 | * accessed through the Linux VFS (i.e. using standard I/O system calls). |
11 | * This support is only needed on clients that wish to mount the file system. | |
12 | * | |
13 | */ | |
14 | ||
15 | /* | |
8bb8aefd | 16 | * Declarations and macros for the ORANGEFS Linux kernel support. |
f7ab093f MM |
17 | */ |
18 | ||
8bb8aefd YL |
19 | #ifndef __ORANGEFSKERNEL_H |
20 | #define __ORANGEFSKERNEL_H | |
f7ab093f MM |
21 | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/statfs.h> | |
25 | #include <linux/backing-dev.h> | |
26 | #include <linux/device.h> | |
27 | #include <linux/mpage.h> | |
28 | #include <linux/namei.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/types.h> | |
34 | #include <linux/fs.h> | |
35 | #include <linux/vmalloc.h> | |
36 | ||
37 | #include <linux/aio.h> | |
38 | #include <linux/posix_acl.h> | |
39 | #include <linux/posix_acl_xattr.h> | |
40 | #include <linux/compat.h> | |
41 | #include <linux/mount.h> | |
42 | #include <linux/uaccess.h> | |
43 | #include <linux/atomic.h> | |
44 | #include <linux/uio.h> | |
174cd4b1 | 45 | #include <linux/sched/signal.h> |
f7ab093f MM |
46 | #include <linux/mm.h> |
47 | #include <linux/wait.h> | |
48 | #include <linux/dcache.h> | |
49 | #include <linux/pagemap.h> | |
50 | #include <linux/poll.h> | |
51 | #include <linux/rwsem.h> | |
52 | #include <linux/xattr.h> | |
53 | #include <linux/exportfs.h> | |
fc2e2e9c | 54 | #include <linux/hashtable.h> |
f7ab093f MM |
55 | |
56 | #include <asm/unaligned.h> | |
57 | ||
575e9461 | 58 | #include "orangefs-dev-proto.h" |
f7ab093f | 59 | |
8bb8aefd | 60 | #define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20 |
f7ab093f | 61 | |
8bb8aefd | 62 | #define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30 |
f7ab093f | 63 | |
8bb8aefd | 64 | #define ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS 900 /* 15 minutes */ |
f7ab093f | 65 | |
8bb8aefd | 66 | #define ORANGEFS_REQDEVICE_NAME "pvfs2-req" |
f7ab093f | 67 | |
8bb8aefd | 68 | #define ORANGEFS_DEVREQ_MAGIC 0x20030529 |
8bb8aefd | 69 | #define ORANGEFS_PURGE_RETRY_COUNT 0x00000005 |
f7ab093f | 70 | |
cf0c2771 | 71 | #define MAX_DEV_REQ_UPSIZE (2 * sizeof(__s32) + \ |
8bb8aefd | 72 | sizeof(__u64) + sizeof(struct orangefs_upcall_s)) |
cf0c2771 | 73 | #define MAX_DEV_REQ_DOWNSIZE (2 * sizeof(__s32) + \ |
8bb8aefd | 74 | sizeof(__u64) + sizeof(struct orangefs_downcall_s)) |
f7ab093f | 75 | |
f7ab093f | 76 | /* |
8bb8aefd | 77 | * valid orangefs kernel operation states |
f7ab093f MM |
78 | * |
79 | * unknown - op was just initialized | |
80 | * waiting - op is on request_list (upward bound) | |
81 | * inprogr - op is in progress (waiting for downcall) | |
82 | * serviced - op has matching downcall; ok | |
83 | * purged - op has to start a timer since client-core | |
84 | * exited uncleanly before servicing op | |
ed42fe05 | 85 | * given up - submitter has given up waiting for it |
f7ab093f | 86 | */ |
8bb8aefd | 87 | enum orangefs_vfs_op_states { |
f7ab093f MM |
88 | OP_VFS_STATE_UNKNOWN = 0, |
89 | OP_VFS_STATE_WAITING = 1, | |
90 | OP_VFS_STATE_INPROGR = 2, | |
91 | OP_VFS_STATE_SERVICED = 4, | |
92 | OP_VFS_STATE_PURGED = 8, | |
ed42fe05 | 93 | OP_VFS_STATE_GIVEN_UP = 16, |
f7ab093f MM |
94 | }; |
95 | ||
f7ab093f | 96 | /* |
8bb8aefd | 97 | * orangefs kernel memory related flags |
f7ab093f MM |
98 | */ |
99 | ||
538e3048 | 100 | #if (defined CONFIG_DEBUG_SLAB) |
8bb8aefd | 101 | #define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE |
f7ab093f | 102 | #else |
8bb8aefd | 103 | #define ORANGEFS_CACHE_CREATE_FLAGS 0 |
538e3048 | 104 | #endif |
f7ab093f | 105 | |
8bb8aefd YL |
106 | extern int orangefs_init_acl(struct inode *inode, struct inode *dir); |
107 | extern const struct xattr_handler *orangefs_xattr_handlers[]; | |
f7ab093f | 108 | |
0cad6246 | 109 | extern struct posix_acl *orangefs_get_acl(struct inode *inode, int type, bool rcu); |
549c7297 CB |
110 | extern int orangefs_set_acl(struct user_namespace *mnt_userns, |
111 | struct inode *inode, struct posix_acl *acl, | |
112 | int type); | |
f7ab093f | 113 | |
f7ab093f | 114 | /* |
8bb8aefd | 115 | * orangefs data structures |
f7ab093f | 116 | */ |
8bb8aefd YL |
117 | struct orangefs_kernel_op_s { |
118 | enum orangefs_vfs_op_states op_state; | |
f7ab093f MM |
119 | __u64 tag; |
120 | ||
121 | /* | |
d37c0f30 MM |
122 | * Set uses_shared_memory to non zero if this operation uses |
123 | * shared memory. If true, then a retry on the op must also | |
124 | * get a new shared memory buffer and re-populate it. | |
125 | * Cancels don't care - it only matters for service_operation() | |
126 | * retry logics and cancels don't go through it anymore. It | |
127 | * safely stays non-zero when we use it as slot_to_free. | |
f7ab093f | 128 | */ |
78699e29 AV |
129 | union { |
130 | int uses_shared_memory; | |
131 | int slot_to_free; | |
132 | }; | |
f7ab093f | 133 | |
8bb8aefd YL |
134 | struct orangefs_upcall_s upcall; |
135 | struct orangefs_downcall_s downcall; | |
f7ab093f | 136 | |
d2d87a3b | 137 | struct completion waitq; |
f7ab093f MM |
138 | spinlock_t lock; |
139 | ||
f7ab093f MM |
140 | int attempts; |
141 | ||
142 | struct list_head list; | |
143 | }; | |
144 | ||
60831949 AV |
145 | #define set_op_state_waiting(op) ((op)->op_state = OP_VFS_STATE_WAITING) |
146 | #define set_op_state_inprogress(op) ((op)->op_state = OP_VFS_STATE_INPROGR) | |
2d4cae0d | 147 | #define set_op_state_given_up(op) ((op)->op_state = OP_VFS_STATE_GIVEN_UP) |
60831949 AV |
148 | static inline void set_op_state_serviced(struct orangefs_kernel_op_s *op) |
149 | { | |
150 | op->op_state = OP_VFS_STATE_SERVICED; | |
d2d87a3b | 151 | complete(&op->waitq); |
60831949 | 152 | } |
60831949 AV |
153 | |
154 | #define op_state_waiting(op) ((op)->op_state & OP_VFS_STATE_WAITING) | |
155 | #define op_state_in_progress(op) ((op)->op_state & OP_VFS_STATE_INPROGR) | |
156 | #define op_state_serviced(op) ((op)->op_state & OP_VFS_STATE_SERVICED) | |
157 | #define op_state_purged(op) ((op)->op_state & OP_VFS_STATE_PURGED) | |
ed42fe05 | 158 | #define op_state_given_up(op) ((op)->op_state & OP_VFS_STATE_GIVEN_UP) |
78699e29 | 159 | #define op_is_cancel(op) ((op)->upcall.type == ORANGEFS_VFS_OP_CANCEL) |
ed42fe05 | 160 | |
c1223ca4 | 161 | void op_release(struct orangefs_kernel_op_s *op); |
60831949 | 162 | |
78699e29 AV |
163 | extern void orangefs_bufmap_put(int); |
164 | static inline void put_cancel(struct orangefs_kernel_op_s *op) | |
165 | { | |
166 | orangefs_bufmap_put(op->slot_to_free); | |
167 | op_release(op); | |
168 | } | |
169 | ||
170 | static inline void set_op_state_purged(struct orangefs_kernel_op_s *op) | |
171 | { | |
172 | spin_lock(&op->lock); | |
173 | if (unlikely(op_is_cancel(op))) { | |
05a50a5b | 174 | list_del_init(&op->list); |
78699e29 AV |
175 | spin_unlock(&op->lock); |
176 | put_cancel(op); | |
177 | } else { | |
178 | op->op_state |= OP_VFS_STATE_PURGED; | |
d2d87a3b | 179 | complete(&op->waitq); |
78699e29 AV |
180 | spin_unlock(&op->lock); |
181 | } | |
182 | } | |
183 | ||
8bb8aefd YL |
184 | /* per inode private orangefs info */ |
185 | struct orangefs_inode_s { | |
186 | struct orangefs_object_kref refn; | |
187 | char link_target[ORANGEFS_NAME_MAX]; | |
f7ab093f MM |
188 | /* |
189 | * Reading/Writing Extended attributes need to acquire the appropriate | |
8bb8aefd | 190 | * reader/writer semaphore on the orangefs_inode_s structure. |
f7ab093f MM |
191 | */ |
192 | struct rw_semaphore xattr_sem; | |
193 | ||
194 | struct inode vfs_inode; | |
195 | sector_t last_failed_block_index_read; | |
196 | ||
71680c18 | 197 | unsigned long getattr_time; |
8f04e1be | 198 | unsigned long mapping_time; |
afd9fb2a MB |
199 | int attr_valid; |
200 | kuid_t attr_uid; | |
201 | kgid_t attr_gid; | |
8f04e1be | 202 | unsigned long bitlock; |
fc2e2e9c MB |
203 | |
204 | DECLARE_HASHTABLE(xattr_cache, 4); | |
f7ab093f MM |
205 | }; |
206 | ||
8bb8aefd YL |
207 | /* per superblock private orangefs info */ |
208 | struct orangefs_sb_info_s { | |
209 | struct orangefs_khandle root_khandle; | |
f7ab093f MM |
210 | __s32 fs_id; |
211 | int id; | |
212 | int flags; | |
8bb8aefd YL |
213 | #define ORANGEFS_OPT_INTR 0x01 |
214 | #define ORANGEFS_OPT_LOCAL_LOCK 0x02 | |
215 | char devname[ORANGEFS_MAX_SERVER_ADDR_LEN]; | |
f7ab093f MM |
216 | struct super_block *sb; |
217 | int mount_pending; | |
1ec1688c | 218 | int no_list; |
f7ab093f MM |
219 | struct list_head list; |
220 | }; | |
221 | ||
8bb8aefd | 222 | struct orangefs_stats { |
f7ab093f MM |
223 | unsigned long cache_hits; |
224 | unsigned long cache_misses; | |
225 | unsigned long reads; | |
226 | unsigned long writes; | |
227 | }; | |
228 | ||
fc2e2e9c MB |
229 | struct orangefs_cached_xattr { |
230 | struct hlist_node node; | |
231 | char key[ORANGEFS_MAX_XATTR_NAMELEN]; | |
232 | char val[ORANGEFS_MAX_XATTR_VALUELEN]; | |
233 | ssize_t length; | |
234 | unsigned long timeout; | |
235 | }; | |
236 | ||
52e2d0a3 MB |
237 | struct orangefs_write_range { |
238 | loff_t pos; | |
239 | size_t len; | |
240 | kuid_t uid; | |
241 | kgid_t gid; | |
242 | }; | |
243 | ||
889d5f1b | 244 | extern struct orangefs_stats orangefs_stats; |
f7ab093f MM |
245 | |
246 | /* | |
25b532ce | 247 | * NOTE: See Documentation/filesystems/porting.rst for information |
54804949 MM |
248 | * on implementing FOO_I and properly accessing fs private data |
249 | */ | |
8bb8aefd | 250 | static inline struct orangefs_inode_s *ORANGEFS_I(struct inode *inode) |
f7ab093f | 251 | { |
8bb8aefd | 252 | return container_of(inode, struct orangefs_inode_s, vfs_inode); |
f7ab093f MM |
253 | } |
254 | ||
8bb8aefd | 255 | static inline struct orangefs_sb_info_s *ORANGEFS_SB(struct super_block *sb) |
f7ab093f | 256 | { |
8bb8aefd | 257 | return (struct orangefs_sb_info_s *) sb->s_fs_info; |
f7ab093f MM |
258 | } |
259 | ||
260 | /* ino_t descends from "unsigned long", 8 bytes, 64 bits. */ | |
8bb8aefd | 261 | static inline ino_t orangefs_khandle_to_ino(struct orangefs_khandle *khandle) |
f7ab093f MM |
262 | { |
263 | union { | |
264 | unsigned char u[8]; | |
265 | __u64 ino; | |
266 | } ihandle; | |
267 | ||
268 | ihandle.u[0] = khandle->u[0] ^ khandle->u[4]; | |
269 | ihandle.u[1] = khandle->u[1] ^ khandle->u[5]; | |
270 | ihandle.u[2] = khandle->u[2] ^ khandle->u[6]; | |
271 | ihandle.u[3] = khandle->u[3] ^ khandle->u[7]; | |
272 | ihandle.u[4] = khandle->u[12] ^ khandle->u[8]; | |
273 | ihandle.u[5] = khandle->u[13] ^ khandle->u[9]; | |
274 | ihandle.u[6] = khandle->u[14] ^ khandle->u[10]; | |
275 | ihandle.u[7] = khandle->u[15] ^ khandle->u[11]; | |
276 | ||
277 | return ihandle.ino; | |
278 | } | |
279 | ||
8bb8aefd | 280 | static inline struct orangefs_khandle *get_khandle_from_ino(struct inode *inode) |
f7ab093f | 281 | { |
8bb8aefd | 282 | return &(ORANGEFS_I(inode)->refn.khandle); |
f7ab093f MM |
283 | } |
284 | ||
f7ab093f MM |
285 | static inline int is_root_handle(struct inode *inode) |
286 | { | |
287 | gossip_debug(GOSSIP_DCACHE_DEBUG, | |
288 | "%s: root handle: %pU, this handle: %pU:\n", | |
289 | __func__, | |
8bb8aefd | 290 | &ORANGEFS_SB(inode->i_sb)->root_khandle, |
f7ab093f MM |
291 | get_khandle_from_ino(inode)); |
292 | ||
8bb8aefd | 293 | if (ORANGEFS_khandle_cmp(&(ORANGEFS_SB(inode->i_sb)->root_khandle), |
f7ab093f MM |
294 | get_khandle_from_ino(inode))) |
295 | return 0; | |
296 | else | |
297 | return 1; | |
298 | } | |
299 | ||
8bb8aefd | 300 | static inline int match_handle(struct orangefs_khandle resp_handle, |
f7ab093f MM |
301 | struct inode *inode) |
302 | { | |
303 | gossip_debug(GOSSIP_DCACHE_DEBUG, | |
304 | "%s: one handle: %pU, another handle:%pU:\n", | |
305 | __func__, | |
306 | &resp_handle, | |
307 | get_khandle_from_ino(inode)); | |
308 | ||
8bb8aefd | 309 | if (ORANGEFS_khandle_cmp(&resp_handle, get_khandle_from_ino(inode))) |
f7ab093f MM |
310 | return 0; |
311 | else | |
312 | return 1; | |
313 | } | |
314 | ||
315 | /* | |
8bb8aefd | 316 | * defined in orangefs-cache.c |
f7ab093f MM |
317 | */ |
318 | int op_cache_initialize(void); | |
319 | int op_cache_finalize(void); | |
8bb8aefd | 320 | struct orangefs_kernel_op_s *op_alloc(__s32 type); |
78699e29 | 321 | void orangefs_new_tag(struct orangefs_kernel_op_s *op); |
8bb8aefd | 322 | char *get_opname_string(struct orangefs_kernel_op_s *new_op); |
f7ab093f | 323 | |
8bb8aefd YL |
324 | int orangefs_inode_cache_initialize(void); |
325 | int orangefs_inode_cache_finalize(void); | |
f7ab093f | 326 | |
f7ab093f | 327 | /* |
8bb8aefd | 328 | * defined in orangefs-mod.c |
f7ab093f MM |
329 | */ |
330 | void purge_inprogress_ops(void); | |
331 | ||
332 | /* | |
333 | * defined in waitqueue.c | |
334 | */ | |
f7ab093f MM |
335 | void purge_waiting_ops(void); |
336 | ||
337 | /* | |
338 | * defined in super.c | |
339 | */ | |
482664dd MB |
340 | extern uint64_t orangefs_features; |
341 | ||
8bb8aefd | 342 | struct dentry *orangefs_mount(struct file_system_type *fst, |
f7ab093f MM |
343 | int flags, |
344 | const char *devname, | |
345 | void *data); | |
346 | ||
8bb8aefd | 347 | void orangefs_kill_sb(struct super_block *sb); |
45996492 | 348 | int orangefs_remount(struct orangefs_sb_info_s *); |
f7ab093f MM |
349 | |
350 | int fsid_key_table_initialize(void); | |
351 | void fsid_key_table_finalize(void); | |
352 | ||
353 | /* | |
354 | * defined in inode.c | |
355 | */ | |
52e2d0a3 | 356 | vm_fault_t orangefs_page_mkwrite(struct vm_fault *); |
8bb8aefd | 357 | struct inode *orangefs_new_inode(struct super_block *sb, |
f7ab093f MM |
358 | struct inode *dir, |
359 | int mode, | |
360 | dev_t dev, | |
8bb8aefd | 361 | struct orangefs_object_kref *ref); |
f7ab093f | 362 | |
afd9fb2a | 363 | int __orangefs_setattr(struct inode *, struct iattr *); |
549c7297 | 364 | int orangefs_setattr(struct user_namespace *, struct dentry *, struct iattr *); |
f7ab093f | 365 | |
549c7297 CB |
366 | int orangefs_getattr(struct user_namespace *mnt_userns, const struct path *path, |
367 | struct kstat *stat, u32 request_mask, unsigned int flags); | |
f7ab093f | 368 | |
549c7297 CB |
369 | int orangefs_permission(struct user_namespace *mnt_userns, |
370 | struct inode *inode, int mask); | |
933287da | 371 | |
95582b00 | 372 | int orangefs_update_time(struct inode *, struct timespec64 *, int); |
a55f2d86 | 373 | |
f7ab093f MM |
374 | /* |
375 | * defined in xattr.c | |
376 | */ | |
8bb8aefd | 377 | ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size); |
f7ab093f MM |
378 | |
379 | /* | |
380 | * defined in namei.c | |
381 | */ | |
8bb8aefd YL |
382 | struct inode *orangefs_iget(struct super_block *sb, |
383 | struct orangefs_object_kref *ref); | |
f7ab093f | 384 | |
f7ab093f | 385 | /* |
8bb8aefd | 386 | * defined in devorangefs-req.c |
f7ab093f | 387 | */ |
482664dd | 388 | extern uint32_t orangefs_userspace_version; |
f2ee3b75 | 389 | |
8bb8aefd YL |
390 | int orangefs_dev_init(void); |
391 | void orangefs_dev_cleanup(void); | |
f7ab093f | 392 | int is_daemon_in_service(void); |
78699e29 | 393 | bool __is_daemon_in_service(void); |
f7ab093f | 394 | |
c453dcfc MB |
395 | /* |
396 | * defined in file.c | |
397 | */ | |
8f04e1be | 398 | int orangefs_revalidate_mapping(struct inode *); |
c453dcfc | 399 | ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *, |
f9bbb682 MM |
400 | struct iov_iter *, size_t, loff_t, struct orangefs_write_range *, int *, |
401 | struct file *); | |
c453dcfc MB |
402 | ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *, |
403 | struct iov_iter *); | |
404 | ||
f7ab093f | 405 | /* |
8bb8aefd | 406 | * defined in orangefs-utils.c |
f7ab093f | 407 | */ |
8bb8aefd | 408 | __s32 fsid_of_op(struct orangefs_kernel_op_s *op); |
f7ab093f | 409 | |
8bb8aefd | 410 | ssize_t orangefs_inode_getxattr(struct inode *inode, |
f7ab093f MM |
411 | const char *name, |
412 | void *buffer, | |
413 | size_t size); | |
414 | ||
8bb8aefd | 415 | int orangefs_inode_setxattr(struct inode *inode, |
f7ab093f MM |
416 | const char *name, |
417 | const void *value, | |
418 | size_t size, | |
419 | int flags); | |
420 | ||
8b60785c MB |
421 | #define ORANGEFS_GETATTR_NEW 1 |
422 | #define ORANGEFS_GETATTR_SIZE 2 | |
423 | ||
424 | int orangefs_inode_getattr(struct inode *, int); | |
f7ab093f | 425 | |
5859d77e MB |
426 | int orangefs_inode_check_changed(struct inode *inode); |
427 | ||
afd9fb2a | 428 | int orangefs_inode_setattr(struct inode *inode); |
f7ab093f | 429 | |
78699e29 | 430 | bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op); |
f7ab093f | 431 | |
8bb8aefd | 432 | int orangefs_normalize_to_errno(__s32 error_code); |
f7ab093f | 433 | |
1d503617 | 434 | extern struct mutex orangefs_request_mutex; |
f7ab093f MM |
435 | extern int op_timeout_secs; |
436 | extern int slot_timeout_secs; | |
8f04e1be | 437 | extern int orangefs_cache_timeout_msecs; |
1d503617 MB |
438 | extern int orangefs_dcache_timeout_msecs; |
439 | extern int orangefs_getattr_timeout_msecs; | |
8bb8aefd YL |
440 | extern struct list_head orangefs_superblocks; |
441 | extern spinlock_t orangefs_superblocks_lock; | |
442 | extern struct list_head orangefs_request_list; | |
443 | extern spinlock_t orangefs_request_list_lock; | |
444 | extern wait_queue_head_t orangefs_request_list_waitq; | |
1d503617 MB |
445 | extern struct list_head *orangefs_htable_ops_in_progress; |
446 | extern spinlock_t orangefs_htable_ops_in_progress_lock; | |
f7ab093f MM |
447 | extern int hash_table_size; |
448 | ||
8bb8aefd | 449 | extern const struct file_operations orangefs_file_operations; |
6f3fc107 AV |
450 | extern const struct inode_operations orangefs_symlink_inode_operations; |
451 | extern const struct inode_operations orangefs_dir_inode_operations; | |
8bb8aefd YL |
452 | extern const struct file_operations orangefs_dir_operations; |
453 | extern const struct dentry_operations orangefs_dentry_operations; | |
f7ab093f | 454 | |
f7ab093f MM |
455 | /* |
456 | * misc convenience macros | |
457 | */ | |
f7ab093f | 458 | |
8bb8aefd YL |
459 | #define ORANGEFS_OP_INTERRUPTIBLE 1 /* service_operation() is interruptible */ |
460 | #define ORANGEFS_OP_PRIORITY 2 /* service_operation() is high priority */ | |
461 | #define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */ | |
adcf34a2 | 462 | #define ORANGEFS_OP_NO_MUTEX 8 /* don't acquire request_mutex */ |
8bb8aefd | 463 | #define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */ |
0dcac0f7 | 464 | #define ORANGEFS_OP_WRITEBACK 32 |
f7ab093f | 465 | |
8bb8aefd | 466 | int service_operation(struct orangefs_kernel_op_s *op, |
f7ab093f MM |
467 | const char *op_name, |
468 | int flags); | |
469 | ||
f7ab093f | 470 | #define get_interruptible_flag(inode) \ |
8bb8aefd YL |
471 | ((ORANGEFS_SB(inode->i_sb)->flags & ORANGEFS_OPT_INTR) ? \ |
472 | ORANGEFS_OP_INTERRUPTIBLE : 0) | |
f7ab093f | 473 | |
f7ab093f MM |
474 | #define fill_default_sys_attrs(sys_attr, type, mode) \ |
475 | do { \ | |
78fee0b6 JH |
476 | sys_attr.owner = from_kuid(&init_user_ns, current_fsuid()); \ |
477 | sys_attr.group = from_kgid(&init_user_ns, current_fsgid()); \ | |
8bb8aefd | 478 | sys_attr.perms = ORANGEFS_util_translate_mode(mode); \ |
69a23de2 MB |
479 | sys_attr.mtime = 0; \ |
480 | sys_attr.atime = 0; \ | |
481 | sys_attr.ctime = 0; \ | |
8bb8aefd | 482 | sys_attr.mask = ORANGEFS_ATTR_SYS_ALL_SETABLE; \ |
f7ab093f MM |
483 | } while (0) |
484 | ||
804b1737 MS |
485 | static inline void orangefs_set_timeout(struct dentry *dentry) |
486 | { | |
487 | unsigned long time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; | |
488 | ||
489 | dentry->d_fsdata = (void *) time; | |
490 | } | |
491 | ||
8bb8aefd | 492 | #endif /* __ORANGEFSKERNEL_H */ |