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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-03 19:25:58 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-03 19:25:58 -0500 |
| commit | 0f3278d14f0255e4cd9e07ccefc33ff12d8bb59c (patch) | |
| tree | 9bbb209cab841f700162a96e158dfa3ecd361f46 /fs/xfs/xfs_bit.h | |
| parent | 06024f217d607369f0ee0071034ebb03071d5fb2 (diff) | |
| parent | 15c84a470116b2a3b58a7353a6cf711c29a91854 (diff) | |
Merge git://oss.sgi.com:8090/oss/git/xfs-2.6
Diffstat (limited to 'fs/xfs/xfs_bit.h')
| -rw-r--r-- | fs/xfs/xfs_bit.h | 72 |
1 files changed, 27 insertions, 45 deletions
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h index 1e7f57ddf7a8..0bbe56817542 100644 --- a/fs/xfs/xfs_bit.h +++ b/fs/xfs/xfs_bit.h | |||
| @@ -1,33 +1,19 @@ | |||
| 1 | /* | 1 | /* |
| 2 | * Copyright (c) 2000, 2002 Silicon Graphics, Inc. All Rights Reserved. | 2 | * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. | ||
| 3 | * | 4 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it | 5 | * This program is free software; you can redistribute it and/or |
| 5 | * under the terms of version 2 of the GNU General Public License as | 6 | * modify it under the terms of the GNU General Public License as |
| 6 | * published by the Free Software Foundation. | 7 | * published by the Free Software Foundation. |
| 7 | * | 8 | * |
| 8 | * This program is distributed in the hope that it would be useful, but | 9 | * This program is distributed in the hope that it would be useful, |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. | ||
| 11 | * | 13 | * |
| 12 | * Further, this software is distributed without any warranty that it is | 14 | * You should have received a copy of the GNU General Public License |
| 13 | * free of the rightful claim of any third person regarding infringement | 15 | * along with this program; if not, write the Free Software Foundation, |
| 14 | * or the like. Any license provided herein, whether implied or | 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 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 | */ | 17 | */ |
| 32 | #ifndef __XFS_BIT_H__ | 18 | #ifndef __XFS_BIT_H__ |
| 33 | #define __XFS_BIT_H__ | 19 | #define __XFS_BIT_H__ |
| @@ -39,30 +25,26 @@ | |||
| 39 | /* | 25 | /* |
| 40 | * masks with n high/low bits set, 32-bit values & 64-bit values | 26 | * masks with n high/low bits set, 32-bit values & 64-bit values |
| 41 | */ | 27 | */ |
| 42 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK32HI) | ||
| 43 | __uint32_t xfs_mask32hi(int n); | ||
| 44 | #define XFS_MASK32HI(n) xfs_mask32hi(n) | 28 | #define XFS_MASK32HI(n) xfs_mask32hi(n) |
| 45 | #else | 29 | static inline __uint32_t xfs_mask32hi(int n) |
| 46 | #define XFS_MASK32HI(n) ((__uint32_t)-1 << (32 - (n))) | 30 | { |
| 47 | #endif | 31 | return (__uint32_t)-1 << (32 - (n)); |
| 48 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK64HI) | 32 | } |
| 49 | __uint64_t xfs_mask64hi(int n); | ||
| 50 | #define XFS_MASK64HI(n) xfs_mask64hi(n) | 33 | #define XFS_MASK64HI(n) xfs_mask64hi(n) |
| 51 | #else | 34 | static inline __uint64_t xfs_mask64hi(int n) |
| 52 | #define XFS_MASK64HI(n) ((__uint64_t)-1 << (64 - (n))) | 35 | { |
| 53 | #endif | 36 | return (__uint64_t)-1 << (64 - (n)); |
| 54 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK32LO) | 37 | } |
| 55 | __uint32_t xfs_mask32lo(int n); | ||
| 56 | #define XFS_MASK32LO(n) xfs_mask32lo(n) | 38 | #define XFS_MASK32LO(n) xfs_mask32lo(n) |
| 57 | #else | 39 | static inline __uint32_t xfs_mask32lo(int n) |
| 58 | #define XFS_MASK32LO(n) (((__uint32_t)1 << (n)) - 1) | 40 | { |
| 59 | #endif | 41 | return ((__uint32_t)1 << (n)) - 1; |
| 60 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK64LO) | 42 | } |
| 61 | __uint64_t xfs_mask64lo(int n); | ||
| 62 | #define XFS_MASK64LO(n) xfs_mask64lo(n) | 43 | #define XFS_MASK64LO(n) xfs_mask64lo(n) |
| 63 | #else | 44 | static inline __uint64_t xfs_mask64lo(int n) |
| 64 | #define XFS_MASK64LO(n) (((__uint64_t)1 << (n)) - 1) | 45 | { |
| 65 | #endif | 46 | return ((__uint64_t)1 << (n)) - 1; |
| 47 | } | ||
| 66 | 48 | ||
| 67 | /* Get high bit set out of 32-bit argument, -1 if none set */ | 49 | /* Get high bit set out of 32-bit argument, -1 if none set */ |
| 68 | extern int xfs_highbit32(__uint32_t v); | 50 | extern int xfs_highbit32(__uint32_t v); |
