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authorDavid Howells <dhowells@redhat.com>2015-03-06 14:08:58 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-15 15:06:54 -0400
commit5153bc817cdbed826a18938393cc1f81ebbbd898 (patch)
tree0efd65b8539dd457b62e420cfed958fdd6dad003 /fs/cachefiles/interface.c
parentee8ac4d61c2cf43bdd427e70db97ac330e61570d (diff)
VFS: Cachefiles should perform fs modifications on the top layer only
Cachefiles should perform fs modifications (eg. vfs_unlink()) on the top layer only and should not attempt to alter the lower layer. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/cachefiles/interface.c')
-rw-r--r--fs/cachefiles/interface.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 232426214fdd..f1fb0a21bb5a 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -446,7 +446,7 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
return 0;
cachefiles_begin_secure(cache, &saved_cred);
- mutex_lock(&object->backer->d_inode->i_mutex);
+ mutex_lock(&d_inode(object->backer)->i_mutex);
/* if there's an extension to a partial page at the end of the backing
* file, we need to discard the partial page so that we pick up new
@@ -465,7 +465,7 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
ret = notify_change(object->backer, &newattrs, NULL);
truncate_failed:
- mutex_unlock(&object->backer->d_inode->i_mutex);
+ mutex_unlock(&d_inode(object->backer)->i_mutex);
cachefiles_end_secure(cache, saved_cred);
if (ret == -EIO) {