diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/xfs/linux-2.6/spin.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/xfs/linux-2.6/spin.h')
-rw-r--r-- | fs/xfs/linux-2.6/spin.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/spin.h b/fs/xfs/linux-2.6/spin.h new file mode 100644 index 000000000000..bcf60a0b8df0 --- /dev/null +++ b/fs/xfs/linux-2.6/spin.h | |||
@@ -0,0 +1,56 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of version 2 of the GNU General Public License as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope that it would be useful, but | ||
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
11 | * | ||
12 | * Further, this software is distributed without any warranty that it is | ||
13 | * free of the rightful claim of any third person regarding infringement | ||
14 | * or the like. Any license provided herein, whether implied or | ||
15 | * otherwise, applies only to this software file. Patent licenses, if | ||
16 | * any, provided herein do not apply to combinations of this program with | ||
17 | * other software, or any other product whatsoever. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License along | ||
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | ||
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
22 | * | ||
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | ||
24 | * Mountain View, CA 94043, or: | ||
25 | * | ||
26 | * http://www.sgi.com | ||
27 | * | ||
28 | * For further information regarding this notice, see: | ||
29 | * | ||
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | ||
31 | */ | ||
32 | #ifndef __XFS_SUPPORT_SPIN_H__ | ||
33 | #define __XFS_SUPPORT_SPIN_H__ | ||
34 | |||
35 | #include <linux/sched.h> /* preempt needs this */ | ||
36 | #include <linux/spinlock.h> | ||
37 | |||
38 | /* | ||
39 | * Map lock_t from IRIX to Linux spinlocks. | ||
40 | * | ||
41 | * We do not make use of lock_t from interrupt context, so we do not | ||
42 | * have to worry about disabling interrupts at all (unlike IRIX). | ||
43 | */ | ||
44 | |||
45 | typedef spinlock_t lock_t; | ||
46 | |||
47 | #define SPLDECL(s) unsigned long s | ||
48 | |||
49 | #define spinlock_init(lock, name) spin_lock_init(lock) | ||
50 | #define spinlock_destroy(lock) | ||
51 | #define mutex_spinlock(lock) ({ spin_lock(lock); 0; }) | ||
52 | #define mutex_spinunlock(lock, s) do { spin_unlock(lock); (void)s; } while (0) | ||
53 | #define nested_spinlock(lock) spin_lock(lock) | ||
54 | #define nested_spinunlock(lock) spin_unlock(lock) | ||
55 | |||
56 | #endif /* __XFS_SUPPORT_SPIN_H__ */ | ||