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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-02-22 04:16:11 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-02-22 17:43:12 +0100 |
| commit | 7e0e953bb0cf649f93277ac8fb67ecbb7f7b04a9 (patch) | |
| tree | 1ba29a05213aefe77827f268624948ad417c984a /fs/proc/generic.c | |
| parent | debugfs: leave freeing a symlink body until inode eviction (diff) | |
| download | linux-7e0e953bb0cf649f93277ac8fb67ecbb7f7b04a9.tar.xz linux-7e0e953bb0cf649f93277ac8fb67ecbb7f7b04a9.zip | |
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.c | 12 |
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. |