[RFC][PATCH v2 23/34] merging pick_link() with get_link(), part 6

Al Viro
2020-02-23T01:23:02Z

move the only remaining call of get_link() into pick_link()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namei.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 1e8548a547ff..fef2c447219d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1793,14 +1793,14 @@ static inline int handle_dots(struct nameidata *nd, int type)
return 0;
}

-static int pick_link(struct nameidata *nd, struct path *link,
+static const char *pick_link(struct nameidata *nd, struct path *link,
struct inode *inode, unsigned seq)
{
int error;
struct saved *last;
if (unlikely(nd->total_link_count++ >= MAXSYMLINKS)) {
path_to_nameidata(link, nd);
- return -ELOOP;
+ return ERR_PTR(-ELOOP);
}
if (!(nd->flags & LOOKUP_RCU)) {
if (link->mnt == nd->path.mnt)
@@ -1821,7 +1821,7 @@ static int pick_link(struct nameidata *nd, struct path *link,
}
if (error) {
path_put(link);
- return error;
+ return ERR_PTR(error);
}
}

@@ -1830,7 +1830,7 @@ static int pick_link(struct nameidata *nd, struct path *link,
clear_delayed_call(&last->done);
nd->link_inode = inode;
last->seq = seq;
- return 1;
+ return get_link(nd);
}

enum {WALK_FOLLOW = 1, WALK_MORE = 2, WALK_NOFOLLOW = 4};
@@ -1865,11 +1865,7 @@ static const char *step_into(struct nameidata *nd, int flags,
if (read_seqcount_retry(&path.dentry->d_seq, seq))
return ERR_PTR(-ECHILD);
}
- err = pick_link(nd, &path, inode, seq);
- if (err > 0)
- return get_link(nd);
- else
- return ERR_PTR(err);
+ return pick_link(nd, &path, inode, seq);
}

static const char *walk_component(struct nameidata *nd, int flags)
--
2.11.0