The patch titled
Subject: mm: compaction: cache if a pageblock was scanned and no pages were isolated -fix2
has been added to the -mm tree. Its filename is
mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix2.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxx>
Subject: mm: compaction: cache if a pageblock was scanned and no pages were isolated -fix2
The clearing of PG_migrate_skip potentially takes a long time if the
zone is massive. Be safe and check if it needs to reschedule.
This is a fix for
mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated.patch
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN mm/compaction.c~mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix2 mm/compaction.c
--- a/mm/compaction.c~mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix2
+++ a/mm/compaction.c
@@ -85,6 +85,9 @@ static void reset_isolation_suitable(str
/* Walk the zone and mark every pageblock as suitable for isolation */
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {
struct page *page;
+
+ cond_resched();
+
if (!pfn_valid(pfn))
continue;
_
Patches currently in -mm which might be from mgorman@xxxxxxx are
thp-avoid-vm_bug_on-page_countpage-false-positives-in-__collapse_huge_page_copy.patch
mm-remove-__gfp_no_kswapd.patch
mm-compaction-update-comment-in-try_to_compact_pages.patch
mm-vmscan-scale-number-of-pages-reclaimed-by-reclaim-compaction-based-on-failures.patch
mm-vmscan-scale-number-of-pages-reclaimed-by-reclaim-compaction-based-on-failures-fix.patch
mm-compaction-capture-a-suitable-high-order-page-immediately-when-it-is-made-available.patch
revert-mm-mempolicy-let-vma_merge-and-vma_split-handle-vma-vm_policy-linkages.patch
mempolicy-remove-mempolicy-sharing.patch
mempolicy-fix-a-race-in-shared_policy_replace.patch
mempolicy-fix-refcount-leak-in-mpol_set_shared_policy.patch
mempolicy-fix-a-memory-corruption-by-refcount-imbalance-in-alloc_pages_vma.patch
mempolicy-fix-a-memory-corruption-by-refcount-imbalance-in-alloc_pages_vma-v2.patch
mm-cma-discard-clean-pages-during-contiguous-allocation-instead-of-migration.patch
mm-cma-discard-clean-pages-during-contiguous-allocation-instead-of-migration-fix.patch
mm-fix-tracing-in-free_pcppages_bulk.patch
mm-fix-tracing-in-free_pcppages_bulk-fix.patch
cma-fix-counting-of-isolated-pages.patch
cma-count-free-cma-pages.patch
cma-count-free-cma-pages-fix.patch
cma-fix-watermark-checking.patch
cma-fix-watermark-checking-fix.patch
mm-page_alloc-use-get_freepage_migratetype-instead-of-page_private.patch
mm-remain-migratetype-in-freed-page.patch
memory-hotplug-bug-fix-race-between-isolation-and-allocation.patch
memory-hotplug-fix-pages-missed-by-race-rather-than-failing.patch
mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long.patch
mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long-fix.patch
mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long-fix-2.patch
mm-compaction-move-fatal-signal-check-out-of-compact_checklock_irqsave.patch
mm-compaction-update-try_to_compact_pageskerneldoc-comment.patch
mm-compaction-acquire-the-zone-lru_lock-as-late-as-possible.patch
mm-compaction-acquire-the-zone-lru_lock-as-late-as-possible-fix.patch
mm-compaction-acquire-the-zone-lru_lock-as-late-as-possible-fix-fix.patch
mm-compaction-acquire-the-zone-lock-as-late-as-possible.patch
mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
revert-mm-have-order-0-compaction-start-off-where-it-left.patch
mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated.patch
mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch
mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix2.patch
mm-compaction-restart-compaction-from-near-where-it-left-off.patch
mm-compaction-clear-pg_migrate_skip-based-on-compaction-and-reclaim-activity.patch
mm-numa-reclaim-from-all-nodes-within-reclaim-distance.patch
mm-numa-reclaim-from-all-nodes-within-reclaim-distance-fix.patch
mm-numa-reclaim-from-all-nodes-within-reclaim-distance-fix-fix.patch
mm-thp-fix-pmd_present-for-split_huge_page-and-prot_none-with-thp.patch
mm-revert-0def08e3-mm-mempolicyc-check-return-code-of-check_range.patch
mm-revert-0def08e3-mm-mempolicyc-check-return-code-of-check_range-fix.patch
cma-migrate-mlocked-pages.patch
cma-decrease-ccnr_migratepages-after-reclaiming-pagelist.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
