Commit 01e4ca29 authored by Kemeng Shi's avatar Kemeng Shi Committed by Theodore Ts'o
Browse files

ext4: allow to find by goal if EXT4_MB_HINT_GOAL_ONLY is set 



If EXT4_MB_HINT_GOAL_ONLY is set, ext4_mb_regular_allocator will only
allocate blocks from ext4_mb_find_by_goal. Allow to find by goal in
ext4_mb_find_by_goal if EXT4_MB_HINT_GOAL_ONLY is set or allocation
with EXT4_MB_HINT_GOAL_ONLY set will always fail.

EXT4_MB_HINT_GOAL_ONLY is not used at all, so the problem is not
found for now.

Signed-off-by: default avatarKemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: default avatarOjaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://lore.kernel.org/r/20230303172120.3800725-3-shikemeng@huaweicloud.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent b07ffe69

fs/ext4/mballoc.c

+1 −1
Original line number Diff line number Diff line
@@ -2162,7 +2162,7 @@ int ext4_mb_find_by_goal(struct ext4_allocation_context *ac, 
	struct ext4_group_info *grp = ext4_get_group_info(ac->ac_sb, group);

	struct ext4_free_extent ex;



	if (!(ac->ac_flags & EXT4_MB_HINT_TRY_GOAL))

	if (!(ac->ac_flags & (EXT4_MB_HINT_TRY_GOAL | EXT4_MB_HINT_GOAL_ONLY)))

		return 0;

	if (grp->bb_free == 0)

		return 0;