summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorOleg Nesterov <oleg@redhat.com>2013-07-08 14:24:16 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-07-03 19:48:08 -0700
commit2a7abb5a0b35ca8f7c9f8113322fbff87b5d6667 (patch)
tree0952d0b787ed15634b1bbb463c145854af41021f /include
parentb3d78448444995411ba87af2237391bf68fc358d (diff)
downloadlwn-2a7abb5a0b35ca8f7c9f8113322fbff87b5d6667.tar.gz
lwn-2a7abb5a0b35ca8f7c9f8113322fbff87b5d6667.zip
fput: turn "list_head delayed_fput_list" into llist_head
commit 4f5e65a1cc90bbb15b9f6cdc362922af1bcc155a upstream. fput() and delayed_fput() can use llist and avoid the locking. This is unlikely path, it is not that this change can improve the performance, but this way the code looks simpler. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: David Howells <dhowells@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Wang Kai <morgan.wang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d57bc5df7225..f45857a7ac49 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -10,6 +10,7 @@
#include <linux/stat.h>
#include <linux/cache.h>
#include <linux/list.h>
+#include <linux/llist.h>
#include <linux/radix-tree.h>
#include <linux/rbtree.h>
#include <linux/init.h>
@@ -767,6 +768,7 @@ struct file {
*/
union {
struct list_head fu_list;
+ struct llist_node fu_llist;
struct rcu_head fu_rcuhead;
} f_u;
struct path f_path;