The quilt patch titled
Subject: zram: remove redundant checks from zram_recompress()
has been removed from the -mm tree. Its filename was
zram-remove-redundant-checks-from-zram_recompress.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Subject: zram: remove redundant checks from zram_recompress()
Date: Wed, 9 Nov 2022 20:50:43 +0900
Size class index comparison is powerful enough so we can remove object
size comparisons.
Link: https://lkml.kernel.org/r/20221109115047.2921851-10-senozhatsky@xxxxxxxxxxxx
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Alexey Romanov <avromanov@xxxxxxxxxxxxxx>
Cc: Nhat Pham <nphamcs@xxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Suleiman Souhlal <suleiman@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/drivers/block/zram/zram_drv.c~zram-remove-redundant-checks-from-zram_recompress
+++ a/drivers/block/zram/zram_drv.c
@@ -1722,9 +1722,7 @@ static int zram_recompress(struct zram *
comp_len_new);
/* Continue until we make progress */
- if (comp_len_new >= huge_class_size ||
- comp_len_new >= comp_len_old ||
- class_index_new >= class_index_old ||
+ if (class_index_new >= class_index_old ||
(threshold && comp_len_new >= threshold)) {
zcomp_stream_put(zram->comps[prio]);
continue;
@@ -1747,9 +1745,7 @@ static int zram_recompress(struct zram *
* that would save memory, mark the object as incompressible so that
* we will not try to compress it again.
*/
- if (comp_len_new >= huge_class_size ||
- comp_len_new >= comp_len_old ||
- class_index_new >= class_index_old) {
+ if (class_index_new >= class_index_old) {
zram_set_flag(zram, index, ZRAM_INCOMPRESSIBLE);
return 0;
}
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
