linux/include
Michal Hocko c8f7de0bfa mm, compaction: distinguish between full and partial COMPACT_COMPLETE
COMPACT_COMPLETE now means that compaction and free scanner met.  This
is not very useful information if somebody just wants to use this
feedback and make any decisions based on that.  The current caller might
be a poor guy who just happened to scan tiny portion of the zone and
that could be the reason no suitable pages were compacted.  Make sure we
distinguish the full and partial zone walks.

Consumers should treat COMPACT_PARTIAL_SKIPPED as a potential success
and be optimistic in retrying.

The existing users of COMPACT_COMPLETE are conservatively changed to use
COMPACT_PARTIAL_SKIPPED as well but some of them should be probably
reconsidered and only defer the compaction only for COMPACT_COMPLETE
with the new semantic.

This patch shouldn't introduce any functional changes.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20 17:58:30 -07:00
..
acpi Merge branches 'acpi-pci', 'acpi-misc' and 'acpi-tools' 2016-05-16 16:45:48 +02:00
asm-generic Merge branch 'akpm' (patches from Andrew) 2016-05-19 20:00:06 -07:00
clocksource clocksource: arm_arch_timer: Remove arch_timer_get_timecounter 2016-05-03 12:54:21 +02:00
crypto Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-05-19 09:21:36 -07:00
drm drm: Loongson-3 doesn't fully support wc memory 2016-04-22 10:24:11 +10:00
dt-bindings - New Drivers 2016-05-20 11:10:24 -07:00
keys IMA: Use the the system trusted keyrings instead of .ima_mok 2016-04-11 22:49:15 +01:00
kvm KVM: arm/arm64: vgic: Rely on the GIC driver to parse the firmware tables 2016-05-03 12:54:21 +02:00
linux mm, compaction: distinguish between full and partial COMPACT_COMPLETE 2016-05-20 17:58:30 -07:00
math-emu
media [media] media: rc: reduce size of struct ir_raw_event 2016-05-07 10:34:17 -03:00
memory
misc cxl: Add kernel API to allow a context to operate with relocate disabled 2016-05-11 21:54:10 +10:00
net switchdev: pass pointer to fib_info instead of copy 2016-05-17 13:58:49 -04:00
pcmcia
ras
rdma IB/security: Restrict use of the write() interface 2016-04-28 12:03:16 -04:00
rxrpc rxrpc: Static arrays of strings should be const char *const[] 2016-04-11 15:34:40 -04:00
scsi lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c 2016-04-15 16:53:14 -04:00
soc ARC updates for 4.7-rc1 2016-05-19 09:46:18 -07:00
sound ASoC: Updates for v4.7 2016-05-16 14:59:00 +02:00
target
trace mm, compaction: distinguish between full and partial COMPACT_COMPLETE 2016-05-20 17:58:30 -07:00
uapi Merge branch 'i2c/for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-05-19 17:48:12 -07:00
video fbdev: sh_mipi_dsi: remove driver 2016-05-10 11:53:38 +03:00
xen
Kbuild