* [to-be-updated] mm-hwpoison-remove-recalculating-hpage.patch removed from -mm tree
@ 2020-09-19 0:24 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-09-19 0:24 UTC (permalink / raw)
To: mm-commits, zeil, tony.luck, osalvador, mike.kravetz, mhocko,
david, dave.hansen, cai, aneesh.kumar, aneesh.kumar,
naoya.horiguchi
The patch titled
Subject: mm, hwpoison: remove recalculating hpage
has been removed from the -mm tree. Its filename was
mm-hwpoison-remove-recalculating-hpage.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Naoya Horiguchi <naoya.horiguchi@nec.com>
Subject: mm, hwpoison: remove recalculating hpage
hpage is never used after try_to_split_thp_page() in memory_failure(), so
we don't have to update hpage. So let's not recalculate/use hpage.
Link: http://lkml.kernel.org/r/20200806184923.7007-3-nao.horiguchi@gmail.com
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Oscar Salvador <osalvador@suse.com>
Suggested-by: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qian Cai <cai@lca.pw>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memory-failure.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/mm/memory-failure.c~mm-hwpoison-remove-recalculating-hpage
+++ a/mm/memory-failure.c
@@ -1341,7 +1341,6 @@ int memory_failure(unsigned long pfn, in
}
unlock_page(p);
VM_BUG_ON_PAGE(!page_count(p), p);
- hpage = compound_head(p);
}
/*
@@ -1413,11 +1412,8 @@ int memory_failure(unsigned long pfn, in
/*
* Now take care of user space mappings.
* Abort on fail: __delete_from_page_cache() assumes unmapped page.
- *
- * When the raw error page is thp tail page, hpage points to the raw
- * page after thp split.
*/
- if (!hwpoison_user_mappings(p, pfn, flags, &hpage)) {
+ if (!hwpoison_user_mappings(p, pfn, flags, &p)) {
action_result(pfn, MF_MSG_UNMAP_FAILED, MF_IGNORED);
res = -EBUSY;
goto out;
_
Patches currently in -mm which might be from naoya.horiguchi@nec.com are
mmhwpoison-inject-dont-pin-for-hwpoison_filter.patch
mmhwpoison-introduce-mf_msg_unsplit_thp.patch
mmhwpoison-double-check-page-count-in-__get_any_page.patch
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2020-09-19 0:24 [to-be-updated] mm-hwpoison-remove-recalculating-hpage.patch removed from -mm tree akpm
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