mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
608eb3cee7
Add a xbitmap_hweight helper function so that we can get rid of the open-coded loop. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2018 Oracle. All Rights Reserved.
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*/
|
|
#ifndef __XFS_SCRUB_BITMAP_H__
|
|
#define __XFS_SCRUB_BITMAP_H__
|
|
|
|
struct xbitmap_range {
|
|
struct list_head list;
|
|
uint64_t start;
|
|
uint64_t len;
|
|
};
|
|
|
|
struct xbitmap {
|
|
struct list_head list;
|
|
};
|
|
|
|
void xbitmap_init(struct xbitmap *bitmap);
|
|
void xbitmap_destroy(struct xbitmap *bitmap);
|
|
|
|
#define for_each_xbitmap_extent(bex, n, bitmap) \
|
|
list_for_each_entry_safe((bex), (n), &(bitmap)->list, list)
|
|
|
|
#define for_each_xbitmap_block(b, bex, n, bitmap) \
|
|
list_for_each_entry_safe((bex), (n), &(bitmap)->list, list) \
|
|
for ((b) = (bex)->start; (b) < (bex)->start + (bex)->len; (b)++)
|
|
|
|
int xbitmap_set(struct xbitmap *bitmap, uint64_t start, uint64_t len);
|
|
int xbitmap_disunion(struct xbitmap *bitmap, struct xbitmap *sub);
|
|
int xbitmap_set_btcur_path(struct xbitmap *bitmap,
|
|
struct xfs_btree_cur *cur);
|
|
int xbitmap_set_btblocks(struct xbitmap *bitmap,
|
|
struct xfs_btree_cur *cur);
|
|
uint64_t xbitmap_hweight(struct xbitmap *bitmap);
|
|
|
|
#endif /* __XFS_SCRUB_BITMAP_H__ */
|