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Subject[PATCH 36/79] namei: move the calls of may_follow_link() into follow_link()
Date
From: Al Viro <viro@zeniv.linux.org.uk>

All remaining callers of the former are preceded by the latter

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namei.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 2243d18..a13e47d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -882,9 +882,12 @@ out:

static int follow_link(struct path *link, struct nameidata *nd, void **p)
{
- const char *s = get_link(link, nd, p);
- int error;
-
+ const char *s;
+ int error = may_follow_link(link, nd);
+ if (unlikely(error))
+ return error;
+ nd->flags |= LOOKUP_PARENT;
+ s = get_link(link, nd, p);
if (unlikely(IS_ERR(s)))
return PTR_ERR(s);
if (unlikely(!s))
@@ -1994,10 +1997,6 @@ static int path_lookupat(int dfd, const struct filename *name,
while (err > 0) {
void *cookie;
struct path link = nd->link;
- err = may_follow_link(&link, nd);
- if (unlikely(err))
- break;
- nd->flags |= LOOKUP_PARENT;
err = follow_link(&link, nd, &cookie);
if (err)
break;
@@ -2344,10 +2343,6 @@ path_mountpoint(int dfd, const struct filename *name, struct path *path,
while (err > 0) {
void *cookie;
struct path link = *path;
- err = may_follow_link(&link, nd);
- if (unlikely(err))
- break;
- nd->flags |= LOOKUP_PARENT;
err = follow_link(&link, nd, &cookie);
if (err)
break;
@@ -3233,10 +3228,6 @@ static struct file *path_openat(int dfd, struct filename *pathname,
while (unlikely(error > 0)) { /* trailing symlink */
struct path link = nd->link;
void *cookie;
- error = may_follow_link(&link, nd);
- if (unlikely(error))
- break;
- nd->flags |= LOOKUP_PARENT;
nd->flags &= ~(LOOKUP_OPEN|LOOKUP_CREATE|LOOKUP_EXCL);
error = follow_link(&link, nd, &cookie);
if (unlikely(error))
--
2.1.4


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