diff options
| author | Michal Hocko | 2017-07-07 00:38:04 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2017-07-07 01:24:32 +0200 |
| commit | 2ce13640b3f4c8721e6820476cb380fbbfaedc18 (patch) | |
| tree | d5aa27f26ec9af754ff15ba98cbb6bbc1ec901a6 /mm/vmstat.c | |
| parent | mm, compaction: skip over holes in __reset_isolation_suitable (diff) | |
| download | kernel-qcow2-linux-2ce13640b3f4c8721e6820476cb380fbbfaedc18.tar.gz kernel-qcow2-linux-2ce13640b3f4c8721e6820476cb380fbbfaedc18.tar.xz kernel-qcow2-linux-2ce13640b3f4c8721e6820476cb380fbbfaedc18.zip | |
mm: __first_valid_page skip over offline pages
__first_valid_page skips over invalid pfns in the range but it might
still stumble over offline pages. At least start_isolate_page_range
will mark those set_migratetype_isolate. This doesn't represent any
immediate AFAICS because alloc_contig_range will fail to isolate those
pages but it relies on not fully initialized page which will become a
problem later when we stop associating offline pages to zones. Use
pfn_to_online_page to handle this.
This is more a preparatory patch than a fix.
Link: http://lkml.kernel.org/r/20170515085827.16474-10-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Daniel Kiper <daniel.kiper@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Reza Arbab <arbab@linux.vnet.ibm.com>
Cc: Tobias Regnery <tobias.regnery@gmail.com>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
0 files changed, 0 insertions, 0 deletions