[merged mm-stable] zram-clarify-writeback_store-comment.patch removed from -mm tree

[merged mm-stable] zram-clarify-writeback_store-comment.patch removed from -mm tree

[Andrew Morton]

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@chromium.org>
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@chromium.org
Reported-by: Andrew Morton <akpm@linux-foundation.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>
---

 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@chromium.org are