+ mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch added to -mm tree

+ mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix
has been added to the -mm tree.  Its filename is
     mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch

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   c) Ideally: find the original patch on the mailing list and do a
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix

add comment, per David

Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Sudarshan Rajagopalan <quic_sudaraja@quicinc.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


--- a/mm/page_alloc.c~mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix
+++ a/mm/page_alloc.c
@@ -2522,6 +2522,10 @@ static int move_freepages(struct zone *z
 
 	for (pfn = start_pfn; pfn <= end_pfn;) {
 		if (!pfn_valid(pfn)) {
+			/*
+			 * Pageblock alignment may cause us to try to access
+			 * into a hole
+			 */
 			pfn++;
 			continue;
 		}
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-page_alloc-check-pfn-is-valid-before-moving-to-freelist-fix.patch
mm.patch
mm-create-new-mm-swaph-header-file-fix.patch
mm-shmem-make-shmem_init-return-void-fix.patch
ksm-count-ksm-merging-pages-for-each-process-fix.patch
mm-memory_hotplug-refactor-hotadd_init_pgdat-and-try_online_node-checkpatch-fixes.patch
proc-fix-dentry-inode-overinstantiating-under-proc-pid-net-checkpatch-fixes.patch
fs-proc-kcorec-remove-check-of-list-iterator-against-head-past-the-loop-body-fix.patch
add-fat-messages-to-printk-index-checkpatch-fixes.patch
linux-next-rejects.patch
mm-oom_killc-fix-vm_oom_kill_table-ifdeffery.patch