diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/fs/ntfs/bitmap.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/fs/ntfs/bitmap.h')
-rw-r--r-- | kernel/fs/ntfs/bitmap.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/kernel/fs/ntfs/bitmap.h b/kernel/fs/ntfs/bitmap.h new file mode 100644 index 000000000..72c9ad8be --- /dev/null +++ b/kernel/fs/ntfs/bitmap.h @@ -0,0 +1,118 @@ +/* + * bitmap.h - Defines for NTFS kernel bitmap handling. Part of the Linux-NTFS + * project. + * + * Copyright (c) 2004 Anton Altaparmakov + * + * This program/include file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program/include file is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (in the main directory of the Linux-NTFS + * distribution in the file COPYING); if not, write to the Free Software + * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _LINUX_NTFS_BITMAP_H +#define _LINUX_NTFS_BITMAP_H + +#ifdef NTFS_RW + +#include <linux/fs.h> + +#include "types.h" + +extern int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const s64 start_bit, + const s64 count, const u8 value, const bool is_rollback); + +/** + * ntfs_bitmap_set_bits_in_run - set a run of bits in a bitmap to a value + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to set + * @count: number of bits to set + * @value: value to set the bits to (i.e. 0 or 1) + * + * Set @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi to @value, where @value is either 0 or 1. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_bits_in_run(struct inode *vi, + const s64 start_bit, const s64 count, const u8 value) +{ + return __ntfs_bitmap_set_bits_in_run(vi, start_bit, count, value, + false); +} + +/** + * ntfs_bitmap_set_run - set a run of bits in a bitmap + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to set + * @count: number of bits to set + * + * Set @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_run(struct inode *vi, const s64 start_bit, + const s64 count) +{ + return ntfs_bitmap_set_bits_in_run(vi, start_bit, count, 1); +} + +/** + * ntfs_bitmap_clear_run - clear a run of bits in a bitmap + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to clear + * @count: number of bits to clear + * + * Clear @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_clear_run(struct inode *vi, const s64 start_bit, + const s64 count) +{ + return ntfs_bitmap_set_bits_in_run(vi, start_bit, count, 0); +} + +/** + * ntfs_bitmap_set_bit - set a bit in a bitmap + * @vi: vfs inode describing the bitmap + * @bit: bit to set + * + * Set bit @bit in the bitmap described by the vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_bit(struct inode *vi, const s64 bit) +{ + return ntfs_bitmap_set_run(vi, bit, 1); +} + +/** + * ntfs_bitmap_clear_bit - clear a bit in a bitmap + * @vi: vfs inode describing the bitmap + * @bit: bit to clear + * + * Clear bit @bit in the bitmap described by the vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_clear_bit(struct inode *vi, const s64 bit) +{ + return ntfs_bitmap_clear_run(vi, bit, 1); +} + +#endif /* NTFS_RW */ + +#endif /* defined _LINUX_NTFS_BITMAP_H */ |