Re: [RFC PATCH 1/1] zram: Allow rw_page when page isn't written back.

From: Sergey Senozhatsky
Date: Mon Aug 08 2022 - 21:38:16 EST


On (22/08/08 12:50), Brian Geffon wrote:
[..]
>
> pr_info("setup backing device %s\n", file_name);
> @@ -722,7 +707,8 @@ static ssize_t writeback_store(struct device *dev,
>
> if (zram_test_flag(zram, index, ZRAM_WB) ||
> zram_test_flag(zram, index, ZRAM_SAME) ||
> - zram_test_flag(zram, index, ZRAM_UNDER_WB))
> + zram_test_flag(zram, index, ZRAM_UNDER_WB) ||
> + zram_test_flag(zram, index, ZRAM_NO_WB))
> goto next;

mark_idle() probably should also test ZRAM_NO_WB bit.