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authorNick Piggin <npiggin@kernel.dk>2011-01-07 09:49:58 +0300
committerNick Piggin <npiggin@kernel.dk>2011-01-07 09:50:29 +0300
commitb74c79e99389cd79b31fcc08f82c24e492e63c7e (patch)
tree763c6b412517306670bc625e90035f2d16bb739f /fs/logfs/dir.c
parent34286d6662308d82aed891852d04c7c3a2649b16 (diff)
downloadlinux-b74c79e99389cd79b31fcc08f82c24e492e63c7e.tar.xz
fs: provide rcu-walk aware permission i_ops
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/logfs/dir.c')
-rw-r--r--fs/logfs/dir.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index 409dfd65e9a1..f9ddf0c388c8 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -555,9 +555,11 @@ static int logfs_symlink(struct inode *dir, struct dentry *dentry,
return __logfs_create(dir, dentry, inode, target, destlen);
}
-static int logfs_permission(struct inode *inode, int mask)
+static int logfs_permission(struct inode *inode, int mask, unsigned int flags)
{
- return generic_permission(inode, mask, NULL);
+ if (flags & IPERM_FLAG_RCU)
+ return -ECHILD;
+ return generic_permission(inode, mask, flags, NULL);
}
static int logfs_link(struct dentry *old_dentry, struct inode *dir,