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    Subject[PATCH v2 01/20] ext4: set goal start correctly in ext4_mb_normalize_request
    Date
    We need to set ac_g_ex to notify the goal start used in
    ext4_mb_find_by_goal. Set ac_g_ex instead of ac_f_ex in
    ext4_mb_normalize_request.

    Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
    Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
    ---
    fs/ext4/mballoc.c | 8 ++++----
    1 file changed, 4 insertions(+), 4 deletions(-)

    diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
    index 5b2ae37a8b80..0650a1dc870e 100644
    --- a/fs/ext4/mballoc.c
    +++ b/fs/ext4/mballoc.c
    @@ -4191,15 +4191,15 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
    if (ar->pright && (ar->lright == (start + size))) {
    /* merge to the right */
    ext4_get_group_no_and_offset(ac->ac_sb, ar->pright - size,
    - &ac->ac_f_ex.fe_group,
    - &ac->ac_f_ex.fe_start);
    + &ac->ac_g_ex.fe_group,
    + &ac->ac_g_ex.fe_start);
    ac->ac_flags |= EXT4_MB_HINT_TRY_GOAL;
    }
    if (ar->pleft && (ar->lleft + 1 == start)) {
    /* merge to the left */
    ext4_get_group_no_and_offset(ac->ac_sb, ar->pleft + 1,
    - &ac->ac_f_ex.fe_group,
    - &ac->ac_f_ex.fe_start);
    + &ac->ac_g_ex.fe_group,
    + &ac->ac_g_ex.fe_start);
    ac->ac_flags |= EXT4_MB_HINT_TRY_GOAL;
    }

    --
    2.30.0
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