[PATCH] vfs: define new lookup flag for chdir
In the "operation does permission checking" model used by fuse, chdir
permission is not checked, since there's no chdir method.
For this case set a lookup flag, which will be passed to ->permission(), so
fuse can distinguish it from permission checks for other operations.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 409ce6a..f85b2a2 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -776,7 +776,7 @@
if ((mask & MAY_EXEC) && !S_ISDIR(mode) && !(mode & S_IXUGO))
return -EACCES;
- if (nd && (nd->flags & LOOKUP_ACCESS))
+ if (nd && (nd->flags & (LOOKUP_ACCESS | LOOKUP_CHDIR)))
return fuse_access(inode, mask);
return 0;
}