Re: [PATCH] mm/zswap: remove SWP_SYNCHRONOUS_IO swapcache bypass workaround

[Yosry Ahmed]

On Mon, Feb 02, 2026 at 01:47:32AM +0800, Kairui Song wrote:
> From: Kairui Song <kasong@xxxxxxxxxxx>
> 
> Since commit f1879e8a0c60 ("mm, swap: never bypass the swap cache even
> for SWP_SYNCHRONOUS_IO"), all swap-in operations go through the swap
> cache, including those from SWP_SYNCHRONOUS_IO devices like
> zram. Which means the workaround for swap cache bypassing
> introduced by commit 25cd241408a2 ("mm: zswap: fix data loss on
> SWP_SYNCHRONOUS_IO devices") is no longer needed. Remove it, but
> keep the comments that are still helpful.
> 
> Suggested-by: Yosry Ahmed <yosry.ahmed@xxxxxxxxx>
> Signed-off-by: Kairui Song <kasong@xxxxxxxxxxx>

Acked-by: Yosry Ahmed <yosry.ahmed@xxxxxxxxx>

Thanks!