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staging: lustre: llite: drop acl from cache

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Commit b8a7a3a6 change get_acl() for posix xattr to always cache
the ACL which increases the reference count. That reference count
can be reduced by have ll_get_acl() call forget_cached_acl() which
it wasn't. When an inode gets deleted by Lustre the POSIX ACL
reference count is tested to ensure its 1 and if not produces an error.
Since forget_cached_acl() was not called Lustre started to complain.
This patch changes ll_get_acl() to call forget_cached_acl().

Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
James Simmons 2016-05-23 20:35:08 -04:00 committed by Greg Kroah-Hartman
parent c6c7a17010
commit b788dc51e4
1 changed files with 1 additions and 0 deletions
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drivers/staging/lustre/lustre/llite/file.c
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@ -3124,6 +3124,7 @@ struct posix_acl *ll_get_acl(struct inode *inode, int type)
spin_lock(&lli->lli_lock);
/* VFS' acl_permission_check->check_acl will release the refcount */
acl = posix_acl_dup(lli->lli_posix_acl);
forget_cached_acl(inode, type);
spin_unlock(&lli->lli_lock);
return acl;