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Subject[PATCH 48/79] namei: trim redundant arguments of trailing_symlink()
Date
From: Al Viro <viro@zeniv.linux.org.uk>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namei.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index e6d54ec..22256ef 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1963,14 +1963,15 @@ static void path_cleanup(struct nameidata *nd)
fput(nd->base);
}

-static int trailing_symlink(struct path *link, struct nameidata *nd, void **p)
+static int trailing_symlink(struct nameidata *nd)
{
const char *s;
- int error = may_follow_link(link, nd);
+ int error = may_follow_link(&nd->link, nd);
if (unlikely(error))
return error;
nd->flags |= LOOKUP_PARENT;
- s = get_link(link, nd, p);
+ nd->stack[0].link = nd->link;
+ s = get_link(&nd->stack[0].link, nd, &nd->stack[0].cookie);
if (unlikely(IS_ERR(s)))
return PTR_ERR(s);
if (unlikely(!s))
@@ -1986,7 +1987,7 @@ static int trailing_symlink(struct path *link, struct nameidata *nd, void **p)
nd->inode = nd->path.dentry->d_inode;
error = link_path_walk(s, nd);
if (unlikely(error))
- put_link(nd, link, *p);
+ put_link(nd, &nd->stack[0].link, nd->stack[0].cookie);
return error;
}

@@ -2023,9 +2024,7 @@ static int path_lookupat(int dfd, const struct filename *name,
if (!err && !(flags & LOOKUP_PARENT)) {
err = lookup_last(nd);
while (err > 0) {
- nd->stack[0].link = nd->link;
- err = trailing_symlink(&nd->stack[0].link,
- nd, &nd->stack[0].cookie);
+ err = trailing_symlink(nd);
if (err)
break;
err = lookup_last(nd);
@@ -2369,9 +2368,7 @@ path_mountpoint(int dfd, const struct filename *name, struct path *path,

err = mountpoint_last(nd, path);
while (err > 0) {
- nd->stack[0].link = nd->link;
- err = trailing_symlink(&nd->stack[0].link,
- nd, &nd->stack[0].cookie);
+ err = trailing_symlink(nd);
if (err)
break;
err = mountpoint_last(nd, path);
@@ -3255,9 +3252,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
error = do_last(nd, file, op, &opened, pathname);
while (unlikely(error > 0)) { /* trailing symlink */
nd->flags &= ~(LOOKUP_OPEN|LOOKUP_CREATE|LOOKUP_EXCL);
- nd->stack[0].link = nd->link;
- error= trailing_symlink(&nd->stack[0].link,
- nd, &nd->stack[0].cookie);
+ error = trailing_symlink(nd);
if (unlikely(error))
break;
error = do_last(nd, file, op, &opened, pathname);
--
2.1.4


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