[PATCH] add a vfs_permission helper

Most permission() calls have a struct nameidata * available.  This helper
takes that as an argument and thus makes sure we pass it down for lookup
intents and prepares for per-mount read-only support where we need a struct
vfsmount for checking whether a file is writeable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/exec.c b/fs/exec.c
index 5a4e3acc2e9f..7bbb781b9ac6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -135,7 +135,7 @@ asmlinkage long sys_uselib(const char __user * library)
         if (!S_ISREG(nd.dentry->d_inode->i_mode))
                 goto exit;
 
-        error = permission(nd.dentry->d_inode, MAY_READ | MAY_EXEC, &nd);
+        error = vfs_permission(&nd, MAY_READ | MAY_EXEC);
         if (error)
                 goto exit;
 
@@ -495,7 +495,7 @@ struct file *open_exec(const char *name)
                 file = ERR_PTR(-EACCES);
                 if (!(nd.mnt->mnt_flags & MNT_NOEXEC) &&
                     S_ISREG(inode->i_mode)) {
-                        int err = permission(inode, MAY_EXEC, &nd);
+                        int err = vfs_permission(&nd, MAY_EXEC);
                         if (!err && !(inode->i_mode & 0111))
                                 err = -EACCES;
                         file = ERR_PTR(err);