leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ext4: make mb_check_counter per group

Browse Source 
Make bb_check_counter per group, so each group has the same chance
to be checked, which can expose errors more easily.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Link: https://lore.kernel.org/r/1601292995-32205-2-git-send-email-brookxu@tencent.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Chunguang Xu 2020-09-28 19:36:35 +08:00 committed by Theodore Ts'o
parent 9d1f9b2770
commit addd752cff
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/ext4/ext4.h
View File

@ -3154,6 +3154,9 @@ int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
struct ext4_group_info { struct ext4_group_info {
unsigned long bb_state; unsigned long bb_state;
#ifdef AGGRESSIVE_CHECK
unsigned long bb_check_counter;
#endif
struct rb_root bb_free_root; struct rb_root bb_free_root;
ext4_grpblk_t bb_first_free; /* first free block */ ext4_grpblk_t bb_first_free; /* first free block */
ext4_grpblk_t bb_free; /* total free blocks */ ext4_grpblk_t bb_free; /* total free blocks */

7
fs/ext4/mballoc.c
View File

@ -619,11 +619,8 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
void *buddy; void *buddy;
void *buddy2; void *buddy2;
{ if (e4b->bd_info->bb_check_counter++ % 10)
static int mb_check_counter; return 0;
if (mb_check_counter++ % 100 != 0)
return 0;
}
while (order > 1) { while (order > 1) {
buddy = mb_find_buddy(e4b, order, &max); buddy = mb_find_buddy(e4b, order, &max);