5.15-stable review patch. If anyone has any objections, please let me know.
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From: Kemeng Shi shikemeng@huaweicloud.com
[ Upstream commit 99c515e3a860576ba90c11acbc1d6488dfca6463 ]
We need start in block unit while fe_start is in cluster unit. Use ext4_grp_offs_to_block helper to convert fe_start to get start in block unit.
Signed-off-by: Kemeng Shi shikemeng@huaweicloud.com Reviewed-by: Ojaswin Mujoo ojaswin@linux.ibm.com Link: https://lore.kernel.org/r/20230603150327.3596033-4-shikemeng@huaweicloud.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext4/mballoc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 1145664a0bb71..630a5e5a380e2 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2270,8 +2270,7 @@ int ext4_mb_find_by_goal(struct ext4_allocation_context *ac, if (max >= ac->ac_g_ex.fe_len && ac->ac_g_ex.fe_len == sbi->s_stripe) { ext4_fsblk_t start;
- start = ext4_group_first_block_no(ac->ac_sb, e4b->bd_group) + - ex.fe_start; + start = ext4_grp_offs_to_block(ac->ac_sb, &ex); /* use do_div to get remainder (would be 64-bit modulo) */ if (do_div(start, sbi->s_stripe) == 0) { ac->ac_found++;