diff options
Diffstat (limited to 'fs/xfs/linux-2.6/sema.h')
-rw-r--r-- | fs/xfs/linux-2.6/sema.h | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/fs/xfs/linux-2.6/sema.h b/fs/xfs/linux-2.6/sema.h deleted file mode 100644 index 3abe7e9ceb33..000000000000 --- a/fs/xfs/linux-2.6/sema.h +++ /dev/null | |||
@@ -1,52 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. | ||
3 | * All Rights Reserved. | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or | ||
6 | * modify it under the terms of the GNU General Public License as | ||
7 | * published by the Free Software Foundation. | ||
8 | * | ||
9 | * This program is distributed in the hope that it would be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write the Free Software Foundation, | ||
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
17 | */ | ||
18 | #ifndef __XFS_SUPPORT_SEMA_H__ | ||
19 | #define __XFS_SUPPORT_SEMA_H__ | ||
20 | |||
21 | #include <linux/time.h> | ||
22 | #include <linux/wait.h> | ||
23 | #include <linux/semaphore.h> | ||
24 | #include <asm/atomic.h> | ||
25 | |||
26 | /* | ||
27 | * sema_t structure just maps to struct semaphore in Linux kernel. | ||
28 | */ | ||
29 | |||
30 | typedef struct semaphore sema_t; | ||
31 | |||
32 | #define initnsema(sp, val, name) sema_init(sp, val) | ||
33 | #define psema(sp, b) down(sp) | ||
34 | #define vsema(sp) up(sp) | ||
35 | #define freesema(sema) do { } while (0) | ||
36 | |||
37 | static inline int issemalocked(sema_t *sp) | ||
38 | { | ||
39 | return down_trylock(sp) || (up(sp), 0); | ||
40 | } | ||
41 | |||
42 | /* | ||
43 | * Map cpsema (try to get the sema) to down_trylock. We need to switch | ||
44 | * the return values since cpsema returns 1 (acquired) 0 (failed) and | ||
45 | * down_trylock returns the reverse 0 (acquired) 1 (failed). | ||
46 | */ | ||
47 | static inline int cpsema(sema_t *sp) | ||
48 | { | ||
49 | return down_trylock(sp) ? 0 : 1; | ||
50 | } | ||
51 | |||
52 | #endif /* __XFS_SUPPORT_SEMA_H__ */ | ||