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| author | Oleg Nesterov <oleg@redhat.com> | 2013-07-08 14:24:16 -0700 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-07-13 13:29:10 +0400 |
| commit | 4f5e65a1cc90bbb15b9f6cdc362922af1bcc155a (patch) | |
| tree | c635e87d98c9961ad95c2351bae6d9609eeb761f /include | |
| parent | 64372501e2af9b11e2ffd1ff79345dc4b1abe539 (diff) | |
| download | linux-0-day-4f5e65a1cc90bbb15b9f6cdc362922af1bcc155a.tar.gz linux-0-day-4f5e65a1cc90bbb15b9f6cdc362922af1bcc155a.tar.xz | |
fput: turn "list_head delayed_fput_list" into llist_head
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 834c9e5113d95..d40e8e78bbd12 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> @@ -768,6 +769,7 @@ struct file { */ union { struct list_head fu_list; + struct llist_node fu_llist; struct rcu_head fu_rcuhead; } f_u; struct path f_path; |