Hi Barry,
On 2024/7/26 17:46, Barry Song wrote:
From: Barry Song <v-songbaohua@xxxxxxxx>
Commit 13ddaf26be32 ("mm/swap: fix race when skipping swapcache") supports
one entry only, to support large folio swap-in, we need to handle multiple
swap entries.
To optimize stack usage, we iterate twice in __swap_duplicate_nr(): the
first time to verify that all entries are valid, and the second time to
apply the modifications to the entries.
Signed-off-by: Barry Song <v-songbaohua@xxxxxxxx>
LGTM. Feel free to add:
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
By the way, my shmem swap patchset[1] also relies on this patch, so I
wonder if it's possible to merge this patch into the mm-unstable branch
first (if other patches still need discussion), to make it easier for me
to rebase and resend my patch set? Thanks.
[1]
https://lore.kernel.org/all/cover.1720079976.git.baolin.wang@xxxxxxxxxxxxxxxxx/
