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Subject[PATCH v3 055/110] link_path_walk: nd->depth massage, part 4
Date
From: Al Viro <viro@zeniv.linux.org.uk>

lift increment/decrement into link_path_walk() callers.

Signed-off-by: Al Viro <viro@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 3df4731..cf5009b 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;
--
2.1.4


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