The patch titled
Subject: memory-failure: use num_poisoned_pages instead of mce_bad_pages
has been added to the -mm tree. Its filename is
memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages.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: Xishi Qiu <qiuxishi@xxxxxxxxxx>
Subject: memory-failure: use num_poisoned_pages instead of mce_bad_pages
Since MCE is an x86 concept, and this code is in mm/, it would be better
to use the name num_poisoned_pages instead of mce_bad_pages.
Signed-off-by: Xishi Qiu <qiuxishi@xxxxxxxxxx>
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Suggested-by: Borislav Petkov <bp@xxxxxxxxx>
Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/meminfo.c | 2 +-
include/linux/mm.h | 2 +-
mm/memory-failure.c | 16 ++++++++--------
3 files changed, 10 insertions(+), 10 deletions(-)
diff -puN fs/proc/meminfo.c~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages fs/proc/meminfo.c
--- a/fs/proc/meminfo.c~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages
+++ a/fs/proc/meminfo.c
@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_
vmi.used >> 10,
vmi.largest_chunk >> 10
#ifdef CONFIG_MEMORY_FAILURE
- ,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10)
+ ,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
diff -puN include/linux/mm.h~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages include/linux/mm.h
--- a/include/linux/mm.h~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages
+++ a/include/linux/mm.h
@@ -1747,7 +1747,7 @@ extern int unpoison_memory(unsigned long
extern int sysctl_memory_failure_early_kill;
extern int sysctl_memory_failure_recovery;
extern void shake_page(struct page *p, int access);
-extern atomic_long_t mce_bad_pages;
+extern atomic_long_t num_poisoned_pages;
extern int soft_offline_page(struct page *page, int flags);
extern void dump_page(struct page *page);
diff -puN mm/memory-failure.c~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages mm/memory-failure.c
--- a/mm/memory-failure.c~memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages
+++ a/mm/memory-failure.c
@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __r
int sysctl_memory_failure_recovery __read_mostly = 1;
-atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0);
+atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
#if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
@@ -1040,7 +1040,7 @@ int memory_failure(unsigned long pfn, in
}
nr_pages = 1 << compound_trans_order(hpage);
- atomic_long_add(nr_pages, &mce_bad_pages);
+ atomic_long_add(nr_pages, &num_poisoned_pages);
/*
* We need/can do nothing about count=0 pages.
@@ -1070,7 +1070,7 @@ int memory_failure(unsigned long pfn, in
if (!PageHWPoison(hpage)
|| (hwpoison_filter(p) && TestClearPageHWPoison(p))
|| (p != hpage && TestSetPageHWPoison(hpage))) {
- atomic_long_sub(nr_pages, &mce_bad_pages);
+ atomic_long_sub(nr_pages, &num_poisoned_pages);
return 0;
}
set_page_hwpoison_huge_page(hpage);
@@ -1128,7 +1128,7 @@ int memory_failure(unsigned long pfn, in
}
if (hwpoison_filter(p)) {
if (TestClearPageHWPoison(p))
- atomic_long_sub(nr_pages, &mce_bad_pages);
+ atomic_long_sub(nr_pages, &num_poisoned_pages);
unlock_page(hpage);
put_page(hpage);
return 0;
@@ -1323,7 +1323,7 @@ int unpoison_memory(unsigned long pfn)
return 0;
}
if (TestClearPageHWPoison(p))
- atomic_long_sub(nr_pages, &mce_bad_pages);
+ atomic_long_sub(nr_pages, &num_poisoned_pages);
pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
return 0;
}
@@ -1337,7 +1337,7 @@ int unpoison_memory(unsigned long pfn)
*/
if (TestClearPageHWPoison(page)) {
pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
- atomic_long_sub(nr_pages, &mce_bad_pages);
+ atomic_long_sub(nr_pages, &num_poisoned_pages);
freeit = 1;
if (PageHuge(page))
clear_page_hwpoison_huge_page(page);
@@ -1442,7 +1442,7 @@ static int soft_offline_huge_page(struct
}
done:
/* keep elevated page count for bad page */
- atomic_long_add(1 << compound_trans_order(hpage), &mce_bad_pages);
+ atomic_long_add(1 << compound_trans_order(hpage), &num_poisoned_pages);
set_page_hwpoison_huge_page(hpage);
dequeue_hwpoisoned_huge_page(hpage);
out:
@@ -1585,7 +1585,7 @@ int soft_offline_page(struct page *page,
done:
/* keep elevated page count for bad page */
- atomic_long_inc(&mce_bad_pages);
+ atomic_long_inc(&num_poisoned_pages);
SetPageHWPoison(page);
out:
return ret;
_
Patches currently in -mm which might be from qiuxishi@xxxxxxxxxx are
memory-failure-fix-an-error-of-mce_bad_pages-statistics.patch
memory-failure-do-code-refactor-of-soft_offline_page.patch
memory-failure-use-num_poisoned_pages-instead-of-mce_bad_pages.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
