From: Andrey Zhadchenko <andrey.zhadche...@virtuozzo.com> Drop extra ploop_cluster_is_in_top_delta() as we are planning to access BAT anyway
https://virtuozzo.atlassian.net/browse/VSTOR-91817 Signed-off-by: Andrey Zhadchenko <andrey.zhadche...@virtuozzo.com> --- drivers/md/dm-ploop-map.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/drivers/md/dm-ploop-map.c b/drivers/md/dm-ploop-map.c index 014124d20988..75a2075ea58a 100644 --- a/drivers/md/dm-ploop-map.c +++ b/drivers/md/dm-ploop-map.c @@ -711,12 +711,15 @@ static void ploop_complete_cow(struct ploop_cow *cow, blk_status_t bi_status) kmem_cache_free(cow_cache, cow); } -static void ploop_release_cluster(struct ploop *ploop, u32 clu) +static void ploop_piwb_discard_completed(struct ploop *ploop, + bool success, u32 clu, u32 new_dst_clu) { u32 id, *bat_entries, dst_clu; struct md_page *md; + u8 level; - lockdep_assert_held(&ploop->bat_rwlock); + if (new_dst_clu) + return; id = ploop_bat_clu_to_page_nr(clu); md = ploop_md_page_find(ploop, id); @@ -726,22 +729,15 @@ static void ploop_release_cluster(struct ploop *ploop, u32 clu) bat_entries = md->kmpage; dst_clu = READ_ONCE(bat_entries[clu]); - WRITE_ONCE(bat_entries[clu], BAT_ENTRY_NONE); - WRITE_ONCE(md->bat_levels[clu], 0); - - ploop_hole_set_bit(dst_clu, ploop); -} - -static void ploop_piwb_discard_completed(struct ploop *ploop, - bool success, u32 clu, u32 new_dst_clu) -{ - if (new_dst_clu) - return; + level = md->bat_levels[clu]; - if (ploop_cluster_is_in_top_delta(ploop, clu)) { + if (!(dst_clu == BAT_ENTRY_NONE || level < ploop_top_level(ploop))) { WARN_ON_ONCE(ploop->nr_deltas != 1); - if (success) - ploop_release_cluster(ploop, clu); + if (success) { + WRITE_ONCE(bat_entries[clu], BAT_ENTRY_NONE); + WRITE_ONCE(md->bat_levels[clu], 0); + ploop_hole_set_bit(dst_clu, ploop); + } } } -- 2.43.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
