* [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics
@ 2012-12-12 3:35 Xishi Qiu
2012-12-12 10:25 ` Borislav Petkov
2012-12-14 2:14 ` [PATCH V4 3/3 RESEND] MCE: use num_poisoned_pages instead of mce_bad_pages Xishi Qiu
0 siblings, 2 replies; 4+ messages in thread
From: Xishi Qiu @ 2012-12-12 3:35 UTC (permalink / raw)
To: WuJianguo, Xishi Qiu, Liujiang, Simon Jeons, Andrew Morton,
Borislav Petkov, Andi Kleen, Fengguang Wu, Wanpeng Li, linux-mm,
linux-kernel
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@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Borislav Petkov <bp@alien8.de>
---
fs/proc/meminfo.c | 2 +-
include/linux/mm.h | 2 +-
mm/memory-failure.c | 16 ++++++++--------
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 80e4645..c3dac61 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
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 --git a/include/linux/mm.h b/include/linux/mm.h
index 5432a3e..8ccc477 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1653,7 +1653,7 @@ extern int unpoison_memory(unsigned long pfn);
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 --git a/mm/memory-failure.c b/mm/memory-failure.c
index e513a7b..ff5e611 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
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, int trapno, int flags)
}
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, int trapno, int flags)
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, int trapno, int flags)
}
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 page *page, int flags)
}
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:
@@ -1584,7 +1584,7 @@ int soft_offline_page(struct page *page, int flags)
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;
--
1.7.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics
2012-12-12 3:35 [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics Xishi Qiu
@ 2012-12-12 10:25 ` Borislav Petkov
2012-12-12 10:47 ` Xishi Qiu
2012-12-14 2:14 ` [PATCH V4 3/3 RESEND] MCE: use num_poisoned_pages instead of mce_bad_pages Xishi Qiu
1 sibling, 1 reply; 4+ messages in thread
From: Borislav Petkov @ 2012-12-12 10:25 UTC (permalink / raw)
To: Xishi Qiu
Cc: WuJianguo, Liujiang, Simon Jeons, Andrew Morton, Andi Kleen,
Fengguang Wu, Wanpeng Li, linux-mm, linux-kernel
On Wed, Dec 12, 2012 at 11:35:33AM +0800, Xishi Qiu wrote:
> 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@huawei.com>
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Signed-off-by: Borislav Petkov <bp@alien8.de>
This is not how Signed-of-by: works. You should read
Documentation/SubmittingPatches (yes, the whole of it) about how that
whole S-o-b thing works.
And, FWIW, it should be "Suggested-by: Borislav Petkov <bp@alien8.de>"
Thanks.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics
2012-12-12 10:25 ` Borislav Petkov
@ 2012-12-12 10:47 ` Xishi Qiu
0 siblings, 0 replies; 4+ messages in thread
From: Xishi Qiu @ 2012-12-12 10:47 UTC (permalink / raw)
To: Borislav Petkov, WuJianguo, Liujiang, Simon Jeons, Andrew Morton,
Andi Kleen, Fengguang Wu, Wanpeng Li, linux-mm, linux-kernel
On 2012/12/12 18:25, Borislav Petkov wrote:
> On Wed, Dec 12, 2012 at 11:35:33AM +0800, Xishi Qiu wrote:
>> 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@huawei.com>
>> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
>> Signed-off-by: Borislav Petkov <bp@alien8.de>
>
> This is not how Signed-of-by: works. You should read
> Documentation/SubmittingPatches (yes, the whole of it) about how that
> whole S-o-b thing works.
>
> And, FWIW, it should be "Suggested-by: Borislav Petkov <bp@alien8.de>"
>
> Thanks.
>
Sorry, I will pay more attention to it next time, thank you. :>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH V4 3/3 RESEND] MCE: use num_poisoned_pages instead of mce_bad_pages
2012-12-12 3:35 [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics Xishi Qiu
2012-12-12 10:25 ` Borislav Petkov
@ 2012-12-14 2:14 ` Xishi Qiu
1 sibling, 0 replies; 4+ messages in thread
From: Xishi Qiu @ 2012-12-14 2:14 UTC (permalink / raw)
To: Xishi Qiu, WuJianguo, Liujiang, Simon Jeons, Andrew Morton,
Borislav Petkov, Andi Kleen, Fengguang Wu, Wanpeng Li,
n-horiguchi, linux-mm, linux-kernel
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@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Suggested-by: Borislav Petkov <bp@alien8.de>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
---
fs/proc/meminfo.c | 2 +-
include/linux/mm.h | 2 +-
mm/memory-failure.c | 16 ++++++++--------
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 80e4645..c3dac61 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
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 --git a/include/linux/mm.h b/include/linux/mm.h
index 5432a3e..8ccc477 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1653,7 +1653,7 @@ extern int unpoison_memory(unsigned long pfn);
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 --git a/mm/memory-failure.c b/mm/memory-failure.c
index e513a7b..ff5e611 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
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, int trapno, int flags)
}
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, int trapno, int flags)
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, int trapno, int flags)
}
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 page *page, int flags)
}
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:
@@ -1584,7 +1584,7 @@ int soft_offline_page(struct page *page, int flags)
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;
--
1.7.1
.
^ permalink raw reply related [flat|nested] 4+ messages in thread
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Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2012-12-12 3:35 [PATCH V4 3/3] MCE: fix an error of mce_bad_pages statistics Xishi Qiu
2012-12-12 10:25 ` Borislav Petkov
2012-12-12 10:47 ` Xishi Qiu
2012-12-14 2:14 ` [PATCH V4 3/3 RESEND] MCE: use num_poisoned_pages instead of mce_bad_pages Xishi Qiu
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