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authorAl Viro <viro@zeniv.linux.org.uk>2015-02-21 22:16:11 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2015-02-22 11:43:12 -0500
commit7e0e953bb0cf649f93277ac8fb67ecbb7f7b04a9 (patch)
tree1ba29a05213aefe77827f268624948ad417c984a /fs/proc/generic.c
parent0db59e59299f0b67450c5db21f7f316c8fb04e84 (diff)
downloadlinux-7e0e953bb0cf649f93277ac8fb67ecbb7f7b04a9.tar.bz2
procfs: fix race between symlink removals and traversals
use_pde()/unuse_pde() in ->follow_link()/->put_link() resp. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc/generic.c')
-rw-r--r--fs/proc/generic.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 3309f59d421b..be65b2082135 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -19,7 +19,6 @@
#include <linux/mount.h>
#include <linux/init.h>
#include <linux/idr.h>
-#include <linux/namei.h>
#include <linux/bitops.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
@@ -223,17 +222,6 @@ void proc_free_inum(unsigned int inum)
spin_unlock_irqrestore(&proc_inum_lock, flags);
}
-static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- nd_set_link(nd, __PDE_DATA(dentry->d_inode));
- return NULL;
-}
-
-static const struct inode_operations proc_link_inode_operations = {
- .readlink = generic_readlink,
- .follow_link = proc_follow_link,
-};
-
/*
* Don't create negative dentries here, return -ENOENT by hand
* instead.