Commit 9fda785d authored by Sergey Senozhatsky's avatar Sergey Senozhatsky Committed by Andrew Morton
Browse files

zram: clarify writeback_store() comment 

Re-phrase writeback BIO error comment.

Link: https://lkml.kernel.org/r/20221109115047.2921851-7-senozhatsky@chromium.org


Reported-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarSergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: default avatarMinchan 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: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 60e9b39e

drivers/block/zram/zram_drv.c

+6 −2
Original line number Diff line number Diff line
@@ -769,8 +769,12 @@ static ssize_t writeback_store(struct device *dev, 
			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;