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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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3
mm/memory_hotplug.c
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@@ -1286,8 +1286,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
* migrate_pages returns # of failed pages.
*/
ret = migrate_pages(&source, alloc_migrate_target, 0,
true, MIGRATE_SYNC,
MR_MEMORY_HOTPLUG);
MIGRATE_SYNC, MR_MEMORY_HOTPLUG);
if (ret)
putback_lru_pages(&source);
}