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| author |   David Hildenbrand <david@redhat.com> | 2020-10-13 16:55:24 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-13 18:38:33 -0700 |
| commit | 48381d7e4c1fbbbd67993aef822f7f79ca3dc194 (patch) | |
| tree | 88187c8d64096f15359bcc31296b92fee9559f42 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | mm/page_isolation: exit early when pageblock is isolated in set_migratetype_isolate() (diff) | |
| download | wireguard-linux-48381d7e4c1fbbbd67993aef822f7f79ca3dc194.tar.xz wireguard-linux-48381d7e4c1fbbbd67993aef822f7f79ca3dc194.zip | |
mm/page_isolation: drop WARN_ON_ONCE() in set_migratetype_isolate()
Inside has_unmovable_pages(), we have a comment describing how unmovable
data could end up in ZONE_MOVABLE - via "movablecore". Also, besides
checking if the first page in the pageblock is reserved, we don't perform
any further checks in case of ZONE_MOVABLE.
In case of memory offlining, we set REPORT_FAILURE, properly dump_page()
the page and handle the error gracefully. alloc_contig_pages() users
currently never allocate from ZONE_MOVABLE. E.g., hugetlb uses
alloc_contig_pages() for the allocation of gigantic pages only, which will
never end up on the MOVABLE zone (see htlb_alloc_mask()).
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Qian Cai <cai@lca.pw>
Link: http://lkml.kernel.org/r/20200816125333.7434-4-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions