mm, page_ext: periodically reschedule during page_ext_init()
authorVlastimil Babka <vbabka@suse.cz>
Wed, 6 Sep 2017 23:20:48 +0000 (16:20 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 7 Sep 2017 00:27:26 +0000 (17:27 -0700)
commit0fc542b7dd90a7080fc1a8c846d13a4ddad509ba
treeee5422ad6a51cc864faea00bce1d0f460a677878
parentdab4ead1a9d88361c85a8209c7e23a8fd124e8d7
mm, page_ext: periodically reschedule during page_ext_init()

page_ext_init() can take long on large machines, so add a cond_resched()
point after each section is processed.  This will allow moving the init
to a later point at boot without triggering lockup reports.

Link: http://lkml.kernel.org/r/20170720134029.25268-3-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Yang Shi <yang.shi@linaro.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/page_ext.c