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authorSergey Senozhatsky <senozhatsky@chromium.org>2022-11-09 20:50:43 +0900
committerAndrew Morton <akpm@linux-foundation.org>2022-11-30 15:58:52 -0800
commit4942cf6ad07c487d24112ffbb27362f4e6b409b8 (patch)
tree721ff4ff6074399d674abe7d80c31688e655ac6d /drivers/block/zram
parent7c2af309abd24ff4e313246bf9b68f398d95c871 (diff)
zram: remove redundant checks from zram_recompress()
Size class index comparison is powerful enough so we can remove object size comparisons. Link: https://lkml.kernel.org/r/20221109115047.2921851-10-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Alexey Romanov <avromanov@sberdevices.ru> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/block/zram')
-rw-r--r--drivers/block/zram/zram_drv.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 66659f16f6c8..72beb33366fb 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1722,9 +1722,7 @@ static int zram_recompress(struct zram *zram, u32 index, struct page *page,
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 *zram, u32 index, struct page *page,
* 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;
}