diff options
Diffstat (limited to 'fs/ceph/locks.c')
-rw-r--r-- | fs/ceph/locks.c | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index c35c5c614e38..06ea5cd05cd9 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c | |||
@@ -239,23 +239,21 @@ int ceph_flock(struct file *file, int cmd, struct file_lock *fl) | |||
239 | return err; | 239 | return err; |
240 | } | 240 | } |
241 | 241 | ||
242 | /** | 242 | /* |
243 | * Must be called with lock_flocks() already held. Fills in the passed | 243 | * Fills in the passed counter variables, so you can prepare pagelist metadata |
244 | * counter variables, so you can prepare pagelist metadata before calling | 244 | * before calling ceph_encode_locks. |
245 | * ceph_encode_locks. | ||
246 | */ | 245 | */ |
247 | void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count) | 246 | void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count) |
248 | { | 247 | { |
249 | struct file_lock *lock; | 248 | struct file_lock_context *ctx; |
250 | 249 | ||
251 | *fcntl_count = 0; | 250 | *fcntl_count = 0; |
252 | *flock_count = 0; | 251 | *flock_count = 0; |
253 | 252 | ||
254 | for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { | 253 | ctx = inode->i_flctx; |
255 | if (lock->fl_flags & FL_POSIX) | 254 | if (ctx) { |
256 | ++(*fcntl_count); | 255 | *fcntl_count = ctx->flc_posix_cnt; |
257 | else if (lock->fl_flags & FL_FLOCK) | 256 | *flock_count = ctx->flc_flock_cnt; |
258 | ++(*flock_count); | ||
259 | } | 257 | } |
260 | dout("counted %d flock locks and %d fcntl locks", | 258 | dout("counted %d flock locks and %d fcntl locks", |
261 | *flock_count, *fcntl_count); | 259 | *flock_count, *fcntl_count); |
@@ -271,6 +269,7 @@ int ceph_encode_locks_to_buffer(struct inode *inode, | |||
271 | int num_fcntl_locks, int num_flock_locks) | 269 | int num_fcntl_locks, int num_flock_locks) |
272 | { | 270 | { |
273 | struct file_lock *lock; | 271 | struct file_lock *lock; |
272 | struct file_lock_context *ctx = inode->i_flctx; | ||
274 | int err = 0; | 273 | int err = 0; |
275 | int seen_fcntl = 0; | 274 | int seen_fcntl = 0; |
276 | int seen_flock = 0; | 275 | int seen_flock = 0; |
@@ -279,33 +278,34 @@ int ceph_encode_locks_to_buffer(struct inode *inode, | |||
279 | dout("encoding %d flock and %d fcntl locks", num_flock_locks, | 278 | dout("encoding %d flock and %d fcntl locks", num_flock_locks, |
280 | num_fcntl_locks); | 279 | num_fcntl_locks); |
281 | 280 | ||
282 | for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { | 281 | if (!ctx) |
283 | if (lock->fl_flags & FL_POSIX) { | 282 | return 0; |
284 | ++seen_fcntl; | 283 | |
285 | if (seen_fcntl > num_fcntl_locks) { | 284 | spin_lock(&ctx->flc_lock); |
286 | err = -ENOSPC; | 285 | list_for_each_entry(lock, &ctx->flc_flock, fl_list) { |
287 | goto fail; | 286 | ++seen_fcntl; |
288 | } | 287 | if (seen_fcntl > num_fcntl_locks) { |
289 | err = lock_to_ceph_filelock(lock, &flocks[l]); | 288 | err = -ENOSPC; |
290 | if (err) | 289 | goto fail; |
291 | goto fail; | ||
292 | ++l; | ||
293 | } | 290 | } |
291 | err = lock_to_ceph_filelock(lock, &flocks[l]); | ||
292 | if (err) | ||
293 | goto fail; | ||
294 | ++l; | ||
294 | } | 295 | } |
295 | for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { | 296 | list_for_each_entry(lock, &ctx->flc_flock, fl_list) { |
296 | if (lock->fl_flags & FL_FLOCK) { | 297 | ++seen_flock; |
297 | ++seen_flock; | 298 | if (seen_flock > num_flock_locks) { |
298 | if (seen_flock > num_flock_locks) { | 299 | err = -ENOSPC; |
299 | err = -ENOSPC; | 300 | goto fail; |
300 | goto fail; | ||
301 | } | ||
302 | err = lock_to_ceph_filelock(lock, &flocks[l]); | ||
303 | if (err) | ||
304 | goto fail; | ||
305 | ++l; | ||
306 | } | 301 | } |
302 | err = lock_to_ceph_filelock(lock, &flocks[l]); | ||
303 | if (err) | ||
304 | goto fail; | ||
305 | ++l; | ||
307 | } | 306 | } |
308 | fail: | 307 | fail: |
308 | spin_unlock(&ctx->flc_lock); | ||
309 | return err; | 309 | return err; |
310 | } | 310 | } |
311 | 311 | ||