* + hwpoison-soft-offlining-for-non-lru-movable-page.patch added to -mm tree
@ 2017-01-23 23:38 akpm
0 siblings, 0 replies; 2+ messages in thread
From: akpm @ 2017-01-23 23:38 UTC (permalink / raw)
To: xieyisheng1, mhocko, minchan, n-horiguchi, vbabka, mm-commits
The patch titled
Subject: HWPOISON: soft offlining for non-lru movable pages
has been added to the -mm tree. Its filename is
hwpoison-soft-offlining-for-non-lru-movable-page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hwpoison-soft-offlining-for-non-lru-movable-page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hwpoison-soft-offlining-for-non-lru-movable-page.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: Yisheng Xie <xieyisheng1@huawei.com>
Subject: HWPOISON: soft offlining for non-lru movable pages
Extend the soft offlining framework to support non-lru page, which already
support migration after commit bda807d44454 ("mm: migrate: support non-lru
movable page migration")
When memory correction errors occur on a non-lru movable page, we can
choose to stop using it by migrating data onto another page and disable
the original (maybe half-broken) one.
Link: http://lkml.kernel.org/r/1485183010-9276-1-git-send-email-ysxie@foxmail.com
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Suggested-by: Minchan Kim <minchan@kernel.org>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memory-failure.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff -puN mm/memory-failure.c~hwpoison-soft-offlining-for-non-lru-movable-page mm/memory-failure.c
--- a/mm/memory-failure.c~hwpoison-soft-offlining-for-non-lru-movable-page
+++ a/mm/memory-failure.c
@@ -1527,7 +1527,8 @@ static int get_any_page(struct page *pag
{
int ret = __get_any_page(page, pfn, flags);
- if (ret == 1 && !PageHuge(page) && !PageLRU(page)) {
+ if (ret == 1 && !PageHuge(page) &&
+ !PageLRU(page) && !__PageMovable(page)) {
/*
* Try to free it.
*/
@@ -1649,7 +1650,10 @@ static int __soft_offline_page(struct pa
* Try to migrate to a new page instead. migrate.c
* handles a large number of cases for us.
*/
- ret = isolate_lru_page(page);
+ if (PageLRU(page))
+ ret = isolate_lru_page(page);
+ else
+ ret = !isolate_movable_page(page, ISOLATE_UNEVICTABLE);
/*
* Drop page reference which is came from get_any_page()
* successful isolate_lru_page() already took another one.
@@ -1657,18 +1661,20 @@ static int __soft_offline_page(struct pa
put_hwpoison_page(page);
if (!ret) {
LIST_HEAD(pagelist);
- inc_node_page_state(page, NR_ISOLATED_ANON +
- page_is_file_cache(page));
+ /*
+ * After isolated lru page, the PageLRU will be cleared,
+ * so use !__PageMovable instead for LRU page's mapping
+ * cannot have PAGE_MAPPING_MOVABLE.
+ */
+ if (!__PageMovable(page))
+ inc_node_page_state(page, NR_ISOLATED_ANON +
+ page_is_file_cache(page));
list_add(&page->lru, &pagelist);
ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
MIGRATE_SYNC, MR_MEMORY_FAILURE);
if (ret) {
- if (!list_empty(&pagelist)) {
- list_del(&page->lru);
- dec_node_page_state(page, NR_ISOLATED_ANON +
- page_is_file_cache(page));
- putback_lru_page(page);
- }
+ if (!list_empty(&pagelist))
+ putback_movable_pages(&pagelist);
pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
pfn, ret, page->flags);
_
Patches currently in -mm which might be from xieyisheng1@huawei.com are
hwpoison-soft-offlining-for-non-lru-movable-page.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* + hwpoison-soft-offlining-for-non-lru-movable-page.patch added to -mm tree
@ 2017-01-31 23:17 akpm
0 siblings, 0 replies; 2+ messages in thread
From: akpm @ 2017-01-31 23:17 UTC (permalink / raw)
To: xieyisheng1, ak, arbab, guohanjun, hannes, iamjoonsoo.kim,
izumi.taku, mgorman, mhocko, minchan, n-horiguchi, qiuxishi,
vbabka, vkuznets, mm-commits
The patch titled
Subject: HWPOISON: soft offlining for non-lru movable page
has been added to the -mm tree. Its filename is
hwpoison-soft-offlining-for-non-lru-movable-page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hwpoison-soft-offlining-for-non-lru-movable-page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hwpoison-soft-offlining-for-non-lru-movable-page.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: Yisheng Xie <xieyisheng1@huawei.com>
Subject: HWPOISON: soft offlining for non-lru movable page
Extend soft offlining framework to support non-lru page, which already
support migration after commit bda807d44454 ("mm: migrate: support non-lru
movable page migration")
When memory corrected errors occur on a non-lru movable page, we can
choose to stop using it by migrating data onto another page and disable
the original (maybe half-broken) one.
Link: http://lkml.kernel.org/r/1485867981-16037-4-git-send-email-ysxie@foxmail.com
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Suggested-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Reza Arbab <arbab@linux.vnet.ibm.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memory-failure.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff -puN mm/memory-failure.c~hwpoison-soft-offlining-for-non-lru-movable-page mm/memory-failure.c
--- a/mm/memory-failure.c~hwpoison-soft-offlining-for-non-lru-movable-page
+++ a/mm/memory-failure.c
@@ -1527,7 +1527,8 @@ static int get_any_page(struct page *pag
{
int ret = __get_any_page(page, pfn, flags);
- if (ret == 1 && !PageHuge(page) && !PageLRU(page)) {
+ if (ret == 1 && !PageHuge(page) &&
+ !PageLRU(page) && !__PageMovable(page)) {
/*
* Try to free it.
*/
@@ -1649,7 +1650,10 @@ static int __soft_offline_page(struct pa
* Try to migrate to a new page instead. migrate.c
* handles a large number of cases for us.
*/
- ret = isolate_lru_page(page);
+ if (PageLRU(page))
+ ret = isolate_lru_page(page);
+ else
+ ret = isolate_movable_page(page, ISOLATE_UNEVICTABLE);
/*
* Drop page reference which is came from get_any_page()
* successful isolate_lru_page() already took another one.
@@ -1657,18 +1661,20 @@ static int __soft_offline_page(struct pa
put_hwpoison_page(page);
if (!ret) {
LIST_HEAD(pagelist);
- inc_node_page_state(page, NR_ISOLATED_ANON +
- page_is_file_cache(page));
+ /*
+ * After isolated lru page, the PageLRU will be cleared,
+ * so use !__PageMovable instead for LRU page's mapping
+ * cannot have PAGE_MAPPING_MOVABLE.
+ */
+ if (!__PageMovable(page))
+ inc_node_page_state(page, NR_ISOLATED_ANON +
+ page_is_file_cache(page));
list_add(&page->lru, &pagelist);
ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
MIGRATE_SYNC, MR_MEMORY_FAILURE);
if (ret) {
- if (!list_empty(&pagelist)) {
- list_del(&page->lru);
- dec_node_page_state(page, NR_ISOLATED_ANON +
- page_is_file_cache(page));
- putback_lru_page(page);
- }
+ if (!list_empty(&pagelist))
+ putback_movable_pages(&pagelist);
pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
pfn, ret, page->flags);
_
Patches currently in -mm which might be from xieyisheng1@huawei.com are
mm-migration-make-isolate_movable_page-return-int-type.patch
mm-migration-make-isolate_movable_page-always-defined.patch
hwpoison-soft-offlining-for-non-lru-movable-page.patch
mm-hotplug-enable-memory-hotplug-for-non-lru-movable-pages.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-01-31 23:17 akpm
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