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| author | Felix Blyakher <felixb@sgi.com> | 2009-03-31 15:12:56 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2009-04-24 16:36:03 -0400 |
| commit | a9e61e25f9d2e7e43bf17625f5cb56c9e0a89b17 (patch) | |
| tree | 1c000afc1e2eadb00570ae34666af508afa021fe | |
| parent | 80492e7d49bee0a280a84a39075a7857b92836b2 (diff) | |
| download | linux-a9e61e25f9d2e7e43bf17625f5cb56c9e0a89b17.tar.gz linux-a9e61e25f9d2e7e43bf17625f5cb56c9e0a89b17.tar.bz2 linux-a9e61e25f9d2e7e43bf17625f5cb56c9e0a89b17.zip | |
lockd: call locks_release_private to cleanup per-filesystem state
For every lock request lockd creates a new file_lock object
in nlmsvc_setgrantargs() by copying the passed in file_lock with
locks_copy_lock(). A filesystem can attach it's own lock_operations
vector to the file_lock. It has to be cleaned up at the end of the
file_lock's life. However, lockd doesn't do it today, yet it
asserts in nlmclnt_release_lockargs() that the per-filesystem
state is clean.
This patch fixes it by exporting locks_release_private() and adding
it to nlmsvc_freegrantargs(), to be symmetrical to creating a
file_lock in nlmsvc_setgrantargs().
Signed-off-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| -rw-r--r-- | fs/lockd/svclock.c | 2 | ||||
| -rw-r--r-- | fs/locks.c | 3 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 |
3 files changed, 5 insertions, 1 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index 83ee34203bd7..e577a78d7bac 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -326,6 +326,8 @@ static void nlmsvc_freegrantargs(struct nlm_rqst *call) { if (call->a_args.lock.oh.data != call->a_owner) kfree(call->a_args.lock.oh.data); + + locks_release_private(&call->a_args.lock.fl); } /* diff --git a/fs/locks.c b/fs/locks.c index ec3deea29e37..b6440f52178f 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -151,7 +151,7 @@ static struct file_lock *locks_alloc_lock(void) return kmem_cache_alloc(filelock_cache, GFP_KERNEL); } -static void locks_release_private(struct file_lock *fl) +void locks_release_private(struct file_lock *fl) { if (fl->fl_ops) { if (fl->fl_ops->fl_release_private) @@ -165,6 +165,7 @@ static void locks_release_private(struct file_lock *fl) } } +EXPORT_SYMBOL_GPL(locks_release_private); /* Free a lock which is not in use. */ static void locks_free_lock(struct file_lock *fl) diff --git a/include/linux/fs.h b/include/linux/fs.h index 5bed436f4353..5ba615e8f533 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1108,6 +1108,7 @@ extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void __locks_copy_lock(struct file_lock *, const struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_flock(struct file *); +extern void locks_release_private(struct file_lock *); extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); |