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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-23 06:30:19 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-25 22:23:39 +0400
commite77819e57f0817c6dc7cadd061acd70c604cbce2 (patch)
treef5d7aba2dfbb747a97d783b7cc6a486922c42559 /fs/ext4
parent3ca30d40a91fb9b9871e61d5dea2c1a895906a15 (diff)
downloadlinux-e77819e57f0817c6dc7cadd061acd70c604cbce2.tar.xz
vfs: move ACL cache lookup into generic code
This moves logic for checking the cached ACL values from low-level filesystems into generic code. The end result is a streamlined ACL check that doesn't need to load the inode->i_op->check_acl pointer at all for the common cached case. The filesystems also don't need to check for a non-blocking RCU walk case in their acl_check() functions, because that is all handled at a VFS layer. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/acl.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 60d900fcc3db..4cd9e2e4085e 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -242,12 +242,6 @@ ext4_check_acl(struct inode *inode, int mask)
{
struct posix_acl *acl;
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);