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mm/madvise: don't forget to leave lazy MMU mode in madvise_cold_or_pageout_pte_range()

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We need to leave lazy MMU mode before unlocking.

Link: https://lkml.kernel.org/r/20240126032608.355899-1-senozhatsky@chromium.org
Fixes: b2f557a21b ("mm/madvise: add cond_resched() in madvise_cold_or_pageout_pte_range()")
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Jiexun Wang <wangjiexun@tinylab.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Sergey Senozhatsky 2024-01-26 12:25:48 +09:00 committed by Andrew Morton
parent e870920bbe
commit 4c2da3188b
1 changed files with 1 additions and 0 deletions
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mm/madvise.c
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@ -429,6 +429,7 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
if (++batch_count == SWAP_CLUSTER_MAX) {
batch_count = 0;
if (need_resched()) {
arch_leave_lazy_mmu_mode();
pte_unmap_unlock(start_pte, ptl);
cond_resched();
goto restart;