The quilt patch titled
Subject: zram: further limit recompression threshold
has been removed from the -mm tree. Its filename was
zram-further-limit-recompression-threshold.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: further limit recompression threshold
Date: Wed, 14 Jun 2023 23:13:12 +0900
Recompression threshold should be below huge-size-class watermark. Any
object larger than huge-size-class is a "huge object" and occupies a
whole physical page on the zsmalloc side, in other words it's
incompressible, as far as zsmalloc is concerned.
Link: https://lkml.kernel.org/r/20230614141338.3480029-1-senozhatsky@xxxxxxxxxxxx
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Suggested-by: Brian Geffon <bgeffon@xxxxxxxxxx>
Acked-by: Brian Geffon <bgeffon@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/block/zram/zram_drv.c~zram-further-limit-recompression-threshold
+++ a/drivers/block/zram/zram_drv.c
@@ -1753,7 +1753,7 @@ static ssize_t recompress_store(struct d
}
}
- if (threshold >= PAGE_SIZE)
+ if (threshold >= huge_class_size)
return -EINVAL;
down_read(&zram->init_lock);
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
