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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2020-10-18 01:14:00 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-18 18:27:09 +0200 |
| commit | 203e6e5ca4eac64c8909debfd64aae3fd62b2a16 (patch) | |
| tree | 9fca99ef5719567b92b7a4c0be04e95d81dd5ffd /Documentation/accounting/taskstats-struct.rst | |
| parent | mm/memory-failure: remove a wrapper for alloc_migration_target() (diff) | |
| download | linux-203e6e5ca4eac64c8909debfd64aae3fd62b2a16.tar.xz linux-203e6e5ca4eac64c8909debfd64aae3fd62b2a16.zip | |
mm/memory_hotplug: remove a wrapper for alloc_migration_target()
To calculate the correct node to migrate the page for hotplug, we need to
check node id of the page. Wrapper for alloc_migration_target() exists
for this purpose.
However, Vlastimil informs that all migration source pages come from a
single node. In this case, we don't need to check the node id for each
page and we don't need to re-set the target nodemask for each page by
using the wrapper. Set up the migration_target_control once and use it
for all pages.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Roman Gushchin <guro@fb.com>
Link: http://lkml.kernel.org/r/1594622517-20681-10-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/accounting/taskstats-struct.rst')
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