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authorAl Viro <viro@zeniv.linux.org.uk>2015-05-03 20:54:27 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-05-10 22:20:03 -0400
commitef1a3e7b9634cc68740eb1280309ac5e460b95f9 (patch)
tree3b00262ba4d5ad3d59ac4992c660d0c3fe8b4fe3 /fs/namei.c
parentda4e0be04d8816bbb9420c1da05ce09f502c5b75 (diff)
downloadlinux-ef1a3e7b9634cc68740eb1280309ac5e460b95f9.tar.gz
link_path_walk: nd->depth massage, part 4
lift increment/decrement into link_path_walk() callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 3df4731a7467..cf5009b87c5a 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1763,7 +1763,6 @@ 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;
@@ -1873,7 +1872,6 @@ Err:
 		nd->depth--;
 		put_link(nd);
 	}
-	nd->depth--;
 	return err;
 OK:
 	if (unlikely(nd->depth > 1)) {
@@ -1883,7 +1881,6 @@ OK:
 		put_link(nd);
 		goto Walked;
 	}
-	nd->depth--;
 	return 0;
 }
 
@@ -1986,7 +1983,10 @@ 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)
@@ -2020,7 +2020,9 @@ 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;