The quilt patch titled
Subject: zram: clarify writeback_store() comment
has been removed from the -mm tree. Its filename was
zram-clarify-writeback_store-comment.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: clarify writeback_store() comment
Date: Wed, 9 Nov 2022 20:50:40 +0900
Re-phrase writeback BIO error comment.
Link: https://lkml.kernel.org/r/20221109115047.2921851-7-senozhatsky@xxxxxxxxxxxx
Reported-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
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, 6 insertions(+), 2 deletions(-)
--- a/drivers/block/zram/zram_drv.c~zram-clarify-writeback_store-comment
+++ a/drivers/block/zram/zram_drv.c
@@ -769,8 +769,12 @@ static ssize_t writeback_store(struct de
zram_clear_flag(zram, index, ZRAM_IDLE);
zram_slot_unlock(zram, index);
/*
- * Return last IO error unless every IO were
- * not suceeded.
+ * BIO errors are not fatal, we continue and simply
+ * attempt to writeback the remaining objects (pages).
+ * At the same time we need to signal user-space that
+ * some writes (at least one, but also could be all of
+ * them) were not successful and we do so by returning
+ * the most recent BIO error.
*/
ret = err;
continue;
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
