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authorGreg Kroah-Hartman <[email protected]>2023-12-11 08:39:35 +0100
committerGreg Kroah-Hartman <[email protected]>2023-12-11 08:39:35 +0100
commit0e42b5fee8a8c5bc173f702b0745da6d9329c714 (patch)
treea71b0daded5764fcc33b88f9344872c13f4b488e /mm/madvise.c
parent386a766c4169006d0e9df44823849930b8995e32 (diff)
parenta39b6ac3781d46ba18193c9dbb2110f31e9bffe9 (diff)
Merge 6.7-rc5 into char-misc-next
We need the char/misc fixes in here as well for testing and to build off of. Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'mm/madvise.c')
-rw-r--r--mm/madvise.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index cf4d694280e9..6214a1ab5654 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -335,6 +335,7 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
struct folio *folio = NULL;
LIST_HEAD(folio_list);
bool pageout_anon_only_filter;
+ unsigned int batch_count = 0;
if (fatal_signal_pending(current))
return -EINTR;
@@ -416,6 +417,7 @@ huge_unlock:
regular_folio:
#endif
tlb_change_page_size(tlb, PAGE_SIZE);
+restart:
start_pte = pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
if (!start_pte)
return 0;
@@ -424,6 +426,15 @@ regular_folio:
for (; addr < end; pte++, addr += PAGE_SIZE) {
ptent = ptep_get(pte);
+ if (++batch_count == SWAP_CLUSTER_MAX) {
+ batch_count = 0;
+ if (need_resched()) {
+ pte_unmap_unlock(start_pte, ptl);
+ cond_resched();
+ goto restart;
+ }
+ }
+
if (pte_none(ptent))
continue;