[PATCH 55/79] link_path_walk: nd->depth massage, part 4

[Al Viro]

From: Al Viro <v...@zeniv.linux.org.uk>

lift increment/decrement into link_path_walk() callers.

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
---
 fs/namei.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 0d1fcaf..800cf7e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1755,7 +1755,6 @@ static int link_path_walk(const char *name, struct 
nameidata *nd)
        if (!*name)
                return 0;
 
-       nd->depth++;
        /* At this point we know we have a real path component. */
        for(;;) {
                u64 hash_len;
@@ -1865,7 +1864,6 @@ Err:
                nd->depth--;
                put_link(nd);
        }
-       nd->depth--;
        return err;
 OK:
        if (unlikely(nd->depth > 1)) {
@@ -1875,7 +1873,6 @@ OK:
                put_link(nd);
                goto Walked;
        }
-       nd->depth--;
        return 0;
 }
 
@@ -1978,7 +1975,10 @@ static int path_init(int dfd, const struct filename 
*name, unsigned int flags,
        return -ECHILD;
 done:
        current->total_link_count = 0;
-       return link_path_walk(s, nd);
+       nd->depth++;
+       retval = link_path_walk(s, nd);
+       nd->depth--;
+       return retval;
 }
 
 static void path_cleanup(struct nameidata *nd)
@@ -2012,7 +2012,9 @@ static int trailing_symlink(struct nameidata *nd)
                nd->flags |= LOOKUP_JUMPED;
        }
        nd->inode = nd->path.dentry->d_inode;
+       nd->depth++;
        error = link_path_walk(s, nd);
+       nd->depth--;
        if (unlikely(error))
                put_link(nd);
        return error;
-- 
2.1.4

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