diff options
-rw-r--r-- | fs/namei.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/namei.c b/fs/namei.c index 9e701e28a329..0087cf9c2c6b 100644 --- a/fs/namei.c +++ b/fs/namei.c | |||
@@ -795,7 +795,7 @@ __do_follow_link(const struct path *link, struct nameidata *nd, void **p) | |||
795 | * Without that kind of total limit, nasty chains of consecutive | 795 | * Without that kind of total limit, nasty chains of consecutive |
796 | * symlinks can cause almost arbitrarily long lookups. | 796 | * symlinks can cause almost arbitrarily long lookups. |
797 | */ | 797 | */ |
798 | static inline int do_follow_link(struct path *path, struct nameidata *nd) | 798 | static inline int do_follow_link(struct inode *inode, struct path *path, struct nameidata *nd) |
799 | { | 799 | { |
800 | void *cookie; | 800 | void *cookie; |
801 | int err = -ELOOP; | 801 | int err = -ELOOP; |
@@ -803,6 +803,7 @@ static inline int do_follow_link(struct path *path, struct nameidata *nd) | |||
803 | /* We drop rcu-walk here */ | 803 | /* We drop rcu-walk here */ |
804 | if (nameidata_dentry_drop_rcu_maybe(nd, path->dentry)) | 804 | if (nameidata_dentry_drop_rcu_maybe(nd, path->dentry)) |
805 | return -ECHILD; | 805 | return -ECHILD; |
806 | BUG_ON(inode != path->dentry->d_inode); | ||
806 | 807 | ||
807 | if (current->link_count >= MAX_NESTED_LINKS) | 808 | if (current->link_count >= MAX_NESTED_LINKS) |
808 | goto loop; | 809 | goto loop; |
@@ -1413,8 +1414,7 @@ exec_again: | |||
1413 | goto out_dput; | 1414 | goto out_dput; |
1414 | 1415 | ||
1415 | if (inode->i_op->follow_link) { | 1416 | if (inode->i_op->follow_link) { |
1416 | BUG_ON(inode != next.dentry->d_inode); | 1417 | err = do_follow_link(inode, &next, nd); |
1417 | err = do_follow_link(&next, nd); | ||
1418 | if (err) | 1418 | if (err) |
1419 | goto return_err; | 1419 | goto return_err; |
1420 | nd->inode = nd->path.dentry->d_inode; | 1420 | nd->inode = nd->path.dentry->d_inode; |
@@ -1458,8 +1458,7 @@ last_component: | |||
1458 | break; | 1458 | break; |
1459 | if (inode && unlikely(inode->i_op->follow_link) && | 1459 | if (inode && unlikely(inode->i_op->follow_link) && |
1460 | (lookup_flags & LOOKUP_FOLLOW)) { | 1460 | (lookup_flags & LOOKUP_FOLLOW)) { |
1461 | BUG_ON(inode != next.dentry->d_inode); | 1461 | err = do_follow_link(inode, &next, nd); |
1462 | err = do_follow_link(&next, nd); | ||
1463 | if (err) | 1462 | if (err) |
1464 | goto return_err; | 1463 | goto return_err; |
1465 | nd->inode = nd->path.dentry->d_inode; | 1464 | nd->inode = nd->path.dentry->d_inode; |