1 /****************************************************************************
2 ****************************************************************************
4 *** This header was automatically generated from a Linux kernel header
5 *** of the same name, to make information necessary for userspace to
6 *** call into the kernel available to libc. It contains only constants,
7 *** structures, and macros generated from the original header, and thus,
8 *** contains no copyrightable information.
10 ****************************************************************************
11 ****************************************************************************/
12 #ifndef _LINUX_BLOCKGROUP_LOCK_H
13 #define _LINUX_BLOCKGROUP_LOCK_H
15 #include <linux/spinlock.h>
16 #include <linux/cache.h>
22 } ____cacheline_aligned_in_smp;
24 struct blockgroup_lock {
25 struct bgl_lock locks[NR_BG_LOCKS];
28 #define sb_bgl_lock(sb, block_group) (&(sb)->s_blockgroup_lock.locks[(block_group) & (NR_BG_LOCKS-1)].lock)