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ext2: dump current reservation window info

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There's report BUG in 'ext2_try_to_allocate_with_rsv()', although there's
now dump of all reservation windows information. But there's unknown which
window is being processed.So this is not helpful for locating the issue.
To better analyze the problem, dump the information about reservation window
that is being processed. And just bail with error instead of BUG here.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Message-Id: <20230815112612.221145-5-yebin10@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Ye Bin 2023-08-15 19:26:12 +08:00 committed by Jan Kara
parent 83f99de1b7
commit 9bc6fc3304
1 changed files with 6 additions and 1 deletions
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7
fs/ext2/balloc.c
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@ -1133,8 +1133,13 @@ ext2_try_to_allocate_with_rsv(struct super_block *sb, unsigned int group,
if ((my_rsv->rsv_start > group_last_block) ||
(my_rsv->rsv_end < group_first_block)) {
ext2_error(sb, __func__,
"Reservation out of group %u range goal %d fsb[%lu,%lu] rsv[%lu, %lu]",
group, grp_goal, group_first_block,
group_last_block, my_rsv->rsv_start,
my_rsv->rsv_end);
rsv_window_dump(&EXT2_SB(sb)->s_rsv_window_root, 1);
BUG();
return -1;
}
ret = ext2_try_to_allocate(sb, group, bitmap_bh, grp_goal,
&num, &my_rsv->rsv_window);