mirros/rockchip-kernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: align memory boundary for bitops

Browse Source 
For example, in arm64, free_nid_bitmap should be aligned to word size in order
to use bit operations.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2018-03-09 17:42:28 -08:00
parent c56675750d
commit bb1105e479
3 changed files with 22 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/f2fs_fs.h
View File

@@ -305,6 +305,10 @@ struct f2fs_node {
*/
#define NAT_ENTRY_PER_BLOCK (PAGE_SIZE / sizeof(struct f2fs_nat_entry))
#define NAT_ENTRY_BITMAP_SIZE ((NAT_ENTRY_PER_BLOCK + 7) / 8)
#define NAT_ENTRY_BITMAP_SIZE_ALIGNED \
((NAT_ENTRY_BITMAP_SIZE + BITS_PER_LONG - 1) / \
BITS_PER_LONG * BITS_PER_LONG)
struct f2fs_nat_entry {
__u8 version; /* latest version of cached nat entry */