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lockd: call locks_release_private to cleanup per-filesystem state

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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 <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
This commit is contained in:
Felix Blyakher 2009-03-31 15:12:56 -05:00 • committed by J. Bruce Fields
commit a9e61e25f9
3 changed files with 5 additions and 1 deletions
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3
fs/locks.c
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@ -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)