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mm: remove offlining arg to migrate_pages

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No functional change, but the only purpose of the offlining argument to
migrate_pages() etc, was to ensure that __unmap_and_move() could migrate a
KSM page for memory hotremove (which took ksm_thread_mutex) but not for
other callers.  Now all cases are safe, remove the arg.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Petr Holasek <pholasek@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins
2013-02-22 16:35:14 -08:00
committed by Linus Torvalds
parent b79bc0a0c7
commit 9c620e2bc5
7 changed files with 29 additions and 46 deletions
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6
mm/page_alloc.c
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@@ -6084,10 +6084,8 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
&cc->migratepages);
cc->nr_migratepages -= nr_reclaimed;
ret = migrate_pages(&cc->migratepages,
alloc_migrate_target,
0, false, MIGRATE_SYNC,
MR_CMA);
ret = migrate_pages(&cc->migratepages, alloc_migrate_target,
0, MIGRATE_SYNC, MR_CMA);
}
if (ret < 0) {
putback_movable_pages(&cc->migratepages);