From: Anshuman Khandual <khandual@linux.vnet.ibm.com> To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: mhocko@suse.com, vbabka@suse.cz, mgorman@suse.de, minchan@kernel.org, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, srikar@linux.vnet.ibm.com, haren@linux.vnet.ibm.com, jglisse@redhat.com, dave.hansen@intel.com, dan.j.williams@intel.com Subject: [RFC V2 10/12] mm: Ignore madvise(MADV_MERGEABLE) request for VM_CDM marked VMAs Date: Mon, 30 Jan 2017 09:05:51 +0530 [thread overview] Message-ID: <20170130033602.12275-11-khandual@linux.vnet.ibm.com> (raw) In-Reply-To: <20170130033602.12275-1-khandual@linux.vnet.ibm.com> VMA containing CDM memory should be excluded from KSM merging. This change makes madvise(MADV_MERGEABLE) request on target VMA to be ignored. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> --- mm/ksm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/ksm.c b/mm/ksm.c index 9ae6011..2fb8939 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -37,6 +37,7 @@ #include <linux/freezer.h> #include <linux/oom.h> #include <linux/numa.h> +#include <linux/mempolicy.h> #include <asm/tlbflush.h> #include "internal.h" @@ -1751,6 +1752,9 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start, VM_HUGETLB | VM_MIXEDMAP)) return 0; /* just ignore the advice */ + if (is_cdm_vma(vma)) + return 0; + #ifdef VM_SAO if (*vm_flags & VM_SAO) return 0; -- 2.9.3
WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <khandual@linux.vnet.ibm.com> To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: mhocko@suse.com, vbabka@suse.cz, mgorman@suse.de, minchan@kernel.org, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, srikar@linux.vnet.ibm.com, haren@linux.vnet.ibm.com, jglisse@redhat.com, dave.hansen@intel.com, dan.j.williams@intel.com Subject: [RFC V2 10/12] mm: Ignore madvise(MADV_MERGEABLE) request for VM_CDM marked VMAs Date: Mon, 30 Jan 2017 09:05:51 +0530 [thread overview] Message-ID: <20170130033602.12275-11-khandual@linux.vnet.ibm.com> (raw) In-Reply-To: <20170130033602.12275-1-khandual@linux.vnet.ibm.com> VMA containing CDM memory should be excluded from KSM merging. This change makes madvise(MADV_MERGEABLE) request on target VMA to be ignored. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> --- mm/ksm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/ksm.c b/mm/ksm.c index 9ae6011..2fb8939 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -37,6 +37,7 @@ #include <linux/freezer.h> #include <linux/oom.h> #include <linux/numa.h> +#include <linux/mempolicy.h> #include <asm/tlbflush.h> #include "internal.h" @@ -1751,6 +1752,9 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start, VM_HUGETLB | VM_MIXEDMAP)) return 0; /* just ignore the advice */ + if (is_cdm_vma(vma)) + return 0; + #ifdef VM_SAO if (*vm_flags & VM_SAO) return 0; -- 2.9.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-01-30 9:24 UTC|newest] Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-01-30 3:35 [RFC V2 00/12] Define coherent device memory node Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 01/12] mm: Define coherent device memory (CDM) node Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM nodes Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 17:19 ` Dave Hansen 2017-01-30 17:19 ` Dave Hansen 2017-01-31 1:03 ` Anshuman Khandual 2017-01-31 1:03 ` Anshuman Khandual 2017-01-31 1:37 ` Dave Hansen 2017-01-31 1:37 ` Dave Hansen 2017-02-01 13:59 ` Anshuman Khandual 2017-02-01 13:59 ` Anshuman Khandual 2017-02-01 19:01 ` Dave Hansen 2017-02-01 19:01 ` Dave Hansen 2017-01-30 3:35 ` [RFC V2 03/12] mm: Change generic FALLBACK zonelist creation process Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 17:34 ` Dave Hansen 2017-01-30 17:34 ` Dave Hansen 2017-01-31 1:36 ` Anshuman Khandual 2017-01-31 1:36 ` Anshuman Khandual 2017-01-31 1:57 ` Dave Hansen 2017-01-31 1:57 ` Dave Hansen 2017-01-31 7:25 ` John Hubbard 2017-01-31 7:25 ` John Hubbard 2017-01-31 18:04 ` Dave Hansen 2017-01-31 18:04 ` Dave Hansen 2017-01-31 19:14 ` David Nellans 2017-01-31 19:14 ` David Nellans 2017-02-01 6:56 ` Anshuman Khandual 2017-02-01 6:56 ` Anshuman Khandual 2017-02-01 6:46 ` Anshuman Khandual 2017-02-01 6:46 ` Anshuman Khandual 2017-02-01 6:40 ` Anshuman Khandual 2017-02-01 6:40 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 04/12] mm: Change mbind(MPOL_BIND) implementation for CDM nodes Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 05/12] cpuset: Add cpuset_inc() inside cpuset_init() Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 17:36 ` Dave Hansen 2017-01-30 17:36 ` Dave Hansen 2017-01-30 20:30 ` Mel Gorman 2017-01-30 20:30 ` Mel Gorman 2017-01-31 14:22 ` [RFC] cpuset: Enable changing of top_cpuset's mems_allowed nodemask Anshuman Khandual 2017-01-31 14:22 ` Anshuman Khandual 2017-01-31 16:00 ` Mel Gorman 2017-01-31 16:00 ` Mel Gorman 2017-02-01 7:31 ` Anshuman Khandual 2017-02-01 7:31 ` Anshuman Khandual 2017-02-01 8:53 ` Michal Hocko 2017-02-01 8:53 ` Michal Hocko 2017-02-01 9:18 ` Mel Gorman 2017-02-01 9:18 ` Mel Gorman 2017-01-31 14:36 ` [RFC V2 05/12] cpuset: Add cpuset_inc() inside cpuset_init() Vlastimil Babka 2017-01-31 14:36 ` Vlastimil Babka 2017-01-31 15:30 ` Anshuman Khandual 2017-01-31 15:30 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 06/12] mm: Exclude CDM nodes from task->mems_allowed and root cpuset Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 07/12] mm: Ignore cpuset enforcement when allocation flag has __GFP_THISNODE Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 08/12] mm: Add new VMA flag VM_CDM Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 18:52 ` Jerome Glisse 2017-01-30 18:52 ` Jerome Glisse 2017-01-31 4:22 ` Anshuman Khandual 2017-01-31 4:22 ` Anshuman Khandual 2017-01-31 6:05 ` Jerome Glisse 2017-01-31 6:05 ` Jerome Glisse 2017-01-30 3:35 ` [RFC V2 09/12] mm: Exclude CDM marked VMAs from auto NUMA Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual [this message] 2017-01-30 3:35 ` [RFC V2 10/12] mm: Ignore madvise(MADV_MERGEABLE) request for VM_CDM marked VMAs Anshuman Khandual 2017-01-30 3:35 ` [RFC V2 11/12] mm: Tag VMA with VM_CDM flag during page fault Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 17:51 ` Dave Hansen 2017-01-30 17:51 ` Dave Hansen 2017-01-31 5:10 ` Anshuman Khandual 2017-01-31 5:10 ` Anshuman Khandual 2017-01-31 17:54 ` Dave Hansen 2017-01-31 17:54 ` Dave Hansen 2017-01-30 3:35 ` [RFC V2 12/12] mm: Tag VMA with VM_CDM flag explicitly during mbind(MPOL_BIND) Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 17:54 ` Dave Hansen 2017-01-30 17:54 ` Dave Hansen 2017-01-31 4:36 ` Anshuman Khandual 2017-01-31 4:36 ` Anshuman Khandual 2017-02-07 18:07 ` Dave Hansen 2017-02-07 18:07 ` Dave Hansen 2017-02-08 14:13 ` Anshuman Khandual 2017-02-08 14:13 ` Anshuman Khandual 2017-02-08 15:04 ` Jerome Glisse 2017-02-08 15:04 ` Jerome Glisse 2017-01-30 3:35 ` [DEBUG 13/21] powerpc/mm: Identify coherent device memory nodes during platform init Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [DEBUG 14/21] powerpc/mm: Create numa nodes for hotplug memory Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [DEBUG 15/21] powerpc/mm: Enable CONFIG_MOVABLE_NODE for PPC64 platform Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [DEBUG 16/21] mm: Enable CONFIG_MOVABLE_NODE on powerpc Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [DEBUG 17/21] mm: Export definition of 'zone_names' array through mmzone.h Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:35 ` [DEBUG 18/21] mm: Add debugfs interface to dump each node's zonelist information Anshuman Khandual 2017-01-30 3:35 ` Anshuman Khandual 2017-01-30 3:36 ` [DEBUG 19/21] mm: Add migrate_virtual_range migration interface Anshuman Khandual 2017-01-30 3:36 ` Anshuman Khandual 2017-01-30 3:36 ` [DEBUG 20/21] drivers: Add two drivers for coherent device memory tests Anshuman Khandual 2017-01-30 3:36 ` Anshuman Khandual 2017-01-30 3:36 ` [DEBUG 21/21] selftests/powerpc: Add a script to perform random VMA migrations Anshuman Khandual 2017-01-30 3:36 ` Anshuman Khandual 2017-01-31 5:48 ` [RFC V2 00/12] Define coherent device memory node Anshuman Khandual 2017-01-31 5:48 ` Anshuman Khandual 2017-01-31 6:15 ` Jerome Glisse 2017-01-31 6:15 ` Jerome Glisse
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