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Message-Id: <20200731122112.11263-10-nao.horiguchi@gmail.com>
Date: Fri, 31 Jul 2020 12:21:05 +0000
From: nao.horiguchi@...il.com
To: linux-mm@...ck.org
Cc: mhocko@...nel.org, akpm@...ux-foundation.org,
mike.kravetz@...cle.com, osalvador@...e.de, tony.luck@...el.com,
david@...hat.com, aneesh.kumar@...ux.vnet.ibm.com,
zeil@...dex-team.ru, cai@....pw, naoya.horiguchi@....com,
linux-kernel@...r.kernel.org
Subject: [PATCH v5 09/16] mm,hwpoison: remove flag argument from soft offline functions
From: Naoya Horiguchi <naoya.horiguchi@....com>
The argument @flag no longer affects the behavior of soft_offline_page()
and its variants, so let's remove them.
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@....com>
Signed-off-by: Oscar Salvador <osalvador@...e.de>
---
drivers/base/memory.c | 2 +-
include/linux/mm.h | 2 +-
mm/madvise.c | 2 +-
mm/memory-failure.c | 27 +++++++++++++--------------
4 files changed, 16 insertions(+), 17 deletions(-)
diff --git v5.8-rc7-mmotm-2020-07-27-18-18/drivers/base/memory.c v5.8-rc7-mmotm-2020-07-27-18-18_patched/drivers/base/memory.c
index 4db3c660de83..3e6d27c9dff6 100644
--- v5.8-rc7-mmotm-2020-07-27-18-18/drivers/base/memory.c
+++ v5.8-rc7-mmotm-2020-07-27-18-18_patched/drivers/base/memory.c
@@ -463,7 +463,7 @@ static ssize_t soft_offline_page_store(struct device *dev,
if (kstrtoull(buf, 0, &pfn) < 0)
return -EINVAL;
pfn >>= PAGE_SHIFT;
- ret = soft_offline_page(pfn, 0);
+ ret = soft_offline_page(pfn);
return ret == 0 ? count : ret;
}
diff --git v5.8-rc7-mmotm-2020-07-27-18-18/include/linux/mm.h v5.8-rc7-mmotm-2020-07-27-18-18_patched/include/linux/mm.h
index c09111e8eac8..ecb3c7191fb7 100644
--- v5.8-rc7-mmotm-2020-07-27-18-18/include/linux/mm.h
+++ v5.8-rc7-mmotm-2020-07-27-18-18_patched/include/linux/mm.h
@@ -2988,7 +2988,7 @@ 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 num_poisoned_pages __read_mostly;
-extern int soft_offline_page(unsigned long pfn, int flags);
+extern int soft_offline_page(unsigned long pfn);
/*
diff --git v5.8-rc7-mmotm-2020-07-27-18-18/mm/madvise.c v5.8-rc7-mmotm-2020-07-27-18-18_patched/mm/madvise.c
index 2c50c2c5673b..3eee78abdbec 100644
--- v5.8-rc7-mmotm-2020-07-27-18-18/mm/madvise.c
+++ v5.8-rc7-mmotm-2020-07-27-18-18_patched/mm/madvise.c
@@ -925,7 +925,7 @@ static int madvise_inject_error(int behavior,
if (behavior == MADV_SOFT_OFFLINE) {
pr_info("Soft offlining pfn %#lx at process virtual address %#lx\n",
pfn, start);
- ret = soft_offline_page(pfn, 0);
+ ret = soft_offline_page(pfn);
} else {
pr_info("Injecting memory failure for pfn %#lx at process virtual address %#lx\n",
pfn, start);
diff --git v5.8-rc7-mmotm-2020-07-27-18-18/mm/memory-failure.c v5.8-rc7-mmotm-2020-07-27-18-18_patched/mm/memory-failure.c
index 9768ab5f51ef..7c0a2f8cfe0c 100644
--- v5.8-rc7-mmotm-2020-07-27-18-18/mm/memory-failure.c
+++ v5.8-rc7-mmotm-2020-07-27-18-18_patched/mm/memory-failure.c
@@ -1502,7 +1502,7 @@ static void memory_failure_work_func(struct work_struct *work)
if (!gotten)
break;
if (entry.flags & MF_SOFT_OFFLINE)
- soft_offline_page(entry.pfn, entry.flags);
+ soft_offline_page(entry.pfn);
else
memory_failure(entry.pfn, entry.flags);
}
@@ -1641,7 +1641,7 @@ EXPORT_SYMBOL(unpoison_memory);
* that is not free, and 1 for any other page type.
* For 1 the page is returned with increased page count, otherwise not.
*/
-static int __get_any_page(struct page *p, unsigned long pfn, int flags)
+static int __get_any_page(struct page *p, unsigned long pfn)
{
int ret;
@@ -1668,9 +1668,9 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags)
return ret;
}
-static int get_any_page(struct page *page, unsigned long pfn, int flags)
+static int get_any_page(struct page *page, unsigned long pfn)
{
- int ret = __get_any_page(page, pfn, flags);
+ int ret = __get_any_page(page, pfn);
if (ret == 1 && !PageHuge(page) &&
!PageLRU(page) && !__PageMovable(page)) {
@@ -1683,7 +1683,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
/*
* Did it turn free?
*/
- ret = __get_any_page(page, pfn, 0);
+ ret = __get_any_page(page, pfn);
if (ret == 1 && !PageLRU(page)) {
/* Drop page reference which is from __get_any_page() */
put_page(page);
@@ -1695,7 +1695,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
return ret;
}
-static int soft_offline_huge_page(struct page *page, int flags)
+static int soft_offline_huge_page(struct page *page)
{
int ret;
unsigned long pfn = page_to_pfn(page);
@@ -1754,7 +1754,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
return ret;
}
-static int __soft_offline_page(struct page *page, int flags)
+static int __soft_offline_page(struct page *page)
{
int ret;
unsigned long pfn = page_to_pfn(page);
@@ -1838,7 +1838,7 @@ static int __soft_offline_page(struct page *page, int flags)
return ret;
}
-static int soft_offline_in_use_page(struct page *page, int flags)
+static int soft_offline_in_use_page(struct page *page)
{
int ret;
int mt;
@@ -1868,9 +1868,9 @@ static int soft_offline_in_use_page(struct page *page, int flags)
mt = get_pageblock_migratetype(page);
set_pageblock_migratetype(page, MIGRATE_ISOLATE);
if (PageHuge(page))
- ret = soft_offline_huge_page(page, flags);
+ ret = soft_offline_huge_page(page);
else
- ret = __soft_offline_page(page, flags);
+ ret = __soft_offline_page(page);
set_pageblock_migratetype(page, mt);
return ret;
}
@@ -1891,7 +1891,6 @@ static int soft_offline_free_page(struct page *page)
/**
* soft_offline_page - Soft offline a page.
* @pfn: pfn to soft-offline
- * @flags: flags. Same as memory_failure().
*
* Returns 0 on success, otherwise negated errno.
*
@@ -1910,7 +1909,7 @@ static int soft_offline_free_page(struct page *page)
* This is not a 100% solution for all memory, but tries to be
* ``good enough'' for the majority of memory.
*/
-int soft_offline_page(unsigned long pfn, int flags)
+int soft_offline_page(unsigned long pfn)
{
int ret;
struct page *page;
@@ -1928,11 +1927,11 @@ int soft_offline_page(unsigned long pfn, int flags)
}
get_online_mems();
- ret = get_any_page(page, pfn, flags);
+ ret = get_any_page(page, pfn);
put_online_mems();
if (ret > 0)
- ret = soft_offline_in_use_page(page, flags);
+ ret = soft_offline_in_use_page(page);
else if (ret == 0)
ret = soft_offline_free_page(page);
--
2.17.1
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