From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Lee Schermerhorn <lee.schermerhorn@hp.com>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>
Subject: linux-next: manual merge of the akpm tree with the tip tree
Date: Mon, 10 Dec 2012 19:25:02 +1100 [thread overview]
Message-ID: <20121210192502.4063413a4026cb1009573b20@canb.auug.org.au> (raw)
[-- Attachment #1: Type: text/plain, Size: 2718 bytes --]
Hi Andrew,
Today's linux-next merge of the akpm tree got a conflict in
mm/huge_memory.c between commit 2083d67027ad ("mm/mempolicy: Implement
change_prot_numa() in terms of change_protection()") from the tip, tree
and commit "thp: change_huge_pmd(): make sure we don't try to make a page
writable" from the akpm tree.
I fixed it up (I think - see below) and can carry the fix as necessary (no
action is required).
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
diff --cc include/linux/migrate.h
index bcb5ddc,50d2974..0000000
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@@ -7,16 -7,13 +7,23 @@@
typedef struct page *new_page_t(struct page *, unsigned long private, int **);
+enum migrate_reason {
+ MR_COMPACTION,
+ MR_MEMORY_FAILURE,
+ MR_MEMORY_HOTPLUG,
+ MR_SYSCALL, /* also applies to cpusets */
+ MR_MEMPOLICY_MBIND,
+ MR_NUMA_MISPLACED,
+ MR_CMA
+};
+
+ /*
+ * Return values from addresss_space_operations.migratepage():
+ * - negative errno on page migration failure;
+ * - zero on page migration success;
+ */
+ #define MIGRATEPAGE_SUCCESS 0
+
#ifdef CONFIG_MIGRATION
extern void putback_lru_pages(struct list_head *l);
diff --cc mm/migrate.c
index c0afe60,c3724b6..0000000
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@@ -981,8 -977,7 +981,8 @@@ int migrate_pages(struct list_head *fro
case -EAGAIN:
retry++;
break;
- case 0:
+ case MIGRATEPAGE_SUCCESS:
+ nr_succeeded++;
break;
default:
/* Permanent failure */
@@@ -991,14 -986,8 +991,14 @@@
}
}
}
- rc = 0;
+ rc = nr_failed + retry;
out:
+ if (nr_succeeded)
+ count_vm_events(PGMIGRATE_SUCCESS, nr_succeeded);
+ if (nr_failed)
+ count_vm_events(PGMIGRATE_FAIL, nr_failed);
+ trace_mm_migrate_pages(nr_succeeded, nr_failed, mode, reason);
+
if (!swapwrite)
current->flags &= ~PF_SWAPWRITE;
diff --cc mm/huge_memory.c
index 2c4e4d4,28a368c..0000000
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@@ -1352,17 -1433,8 +1352,18 @@@ int change_huge_pmd(struct vm_area_stru
if (__pmd_trans_huge_lock(pmd, vma) == 1) {
pmd_t entry;
entry = pmdp_get_and_clear(mm, addr, pmd);
- entry = pmd_modify(entry, newprot);
+ if (!prot_numa)
+ entry = pmd_modify(entry, newprot);
+ else {
+ struct page *page = pmd_page(*pmd);
+
+ /* only check non-shared pages */
+ if (page_mapcount(page) == 1 &&
+ !pmd_numa(*pmd)) {
+ entry = pmd_mknuma(entry);
+ }
+ }
+ BUG_ON(pmd_write(entry));
set_pmd_at(mm, addr, pmd, entry);
spin_unlock(&vma->vm_mm->page_table_lock);
ret = 1;
[-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --]
next reply other threads:[~2012-12-10 8:25 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-10 8:25 Stephen Rothwell [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-05-29 10:57 linux-next: manual merge of the akpm tree with the tip tree Stephen Rothwell
2020-05-29 10:49 Stephen Rothwell
2020-01-22 6:37 Stephen Rothwell
2019-02-13 6:49 Stephen Rothwell
2019-02-13 19:59 ` Andrew Morton
2018-01-09 5:02 Stephen Rothwell
2018-01-09 10:36 ` Andy Shevchenko
2017-10-16 18:48 Mark Brown
2017-10-16 20:01 ` Mark Brown
2017-04-12 7:08 Stephen Rothwell
2017-03-31 5:44 Stephen Rothwell
2017-03-31 6:42 ` Peter Zijlstra
2017-03-31 13:54 ` Andi Kleen
2017-03-31 14:45 ` Peter Zijlstra
2017-03-31 16:02 ` Andi Kleen
2017-03-31 17:48 ` Peter Zijlstra
2017-03-24 5:40 Stephen Rothwell
2017-03-24 8:05 ` Peter Zijlstra
2016-03-10 5:28 Stephen Rothwell
2016-03-10 8:00 ` Ingo Molnar
2016-03-10 20:38 ` Andrew Morton
2016-02-09 4:50 Stephen Rothwell
2016-02-09 14:04 ` Matt Fleming
2016-02-09 14:07 ` Ingo Molnar
2015-06-09 14:12 Stephen Rothwell
2015-04-08 8:49 Stephen Rothwell
2015-04-08 15:13 ` Ingo Molnar
2015-04-08 20:46 ` Andrew Morton
2015-04-08 21:57 ` Stephen Rothwell
2014-03-21 6:45 Stephen Rothwell
2014-01-13 6:17 Stephen Rothwell
2013-04-23 7:17 Stephen Rothwell
2013-02-14 4:33 Stephen Rothwell
2013-02-14 4:25 Stephen Rothwell
2013-02-14 4:34 ` H. Peter Anvin
2013-02-04 7:00 Stephen Rothwell
2013-01-28 12:29 Stephen Rothwell
2012-12-10 8:29 Stephen Rothwell
2012-12-10 10:46 ` Ingo Molnar
2012-12-10 8:20 Stephen Rothwell
2012-12-10 8:11 Stephen Rothwell
2012-12-10 8:01 Stephen Rothwell
2012-12-10 11:13 ` Will Deacon
2012-12-10 7:47 Stephen Rothwell
2012-11-15 6:32 Stephen Rothwell
2012-10-01 14:22 Stephen Rothwell
2012-09-27 7:15 Stephen Rothwell
2012-09-27 7:10 Stephen Rothwell
2012-09-27 7:04 Stephen Rothwell
2012-09-27 6:57 Stephen Rothwell
2012-09-27 6:49 Stephen Rothwell
2012-07-27 3:50 Stephen Rothwell
2012-07-25 4:08 Stephen Rothwell
2012-07-25 7:10 ` Ingo Molnar
2012-07-25 7:35 ` Johannes Weiner
2012-07-25 18:57 ` Andrew Morton
2012-07-25 19:03 ` Ingo Molnar
2012-07-25 19:26 ` Andrew Morton
2012-07-26 7:51 ` Ingo Molnar
2012-07-26 18:05 ` Andrew Morton
2012-07-25 19:20 ` Johannes Weiner
2012-07-26 7:03 ` Stephen Rothwell
2012-05-21 8:29 Stephen Rothwell
2012-05-21 8:04 Stephen Rothwell
2012-05-21 7:59 Stephen Rothwell
2012-03-27 4:57 Stephen Rothwell
2012-03-26 4:01 Stephen Rothwell
2012-03-26 5:20 ` Alex Shi
2012-03-08 6:32 Stephen Rothwell
2012-03-08 6:28 Stephen Rothwell
2012-02-29 6:27 Stephen Rothwell
2012-02-28 4:52 Stephen Rothwell
2012-02-27 5:53 Stephen Rothwell
2012-02-27 5:57 ` Cyrill Gorcunov
2012-02-27 6:02 ` H. Peter Anvin
2012-02-27 6:05 ` Cyrill Gorcunov
2012-02-27 6:01 ` H. Peter Anvin
2012-02-27 6:19 ` Stephen Rothwell
2012-02-27 5:44 Stephen Rothwell
2012-02-27 5:33 Stephen Rothwell
2012-02-27 5:23 Stephen Rothwell
2012-02-27 5:16 Stephen Rothwell
2011-12-06 4:04 Stephen Rothwell
2011-09-27 7:13 Stephen Rothwell
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