Mel Gorman
0614002bb5
netvm: propagate page->pfmemalloc from skb_alloc_page to skb ...
The skb->pfmemalloc flag gets set to true iff during the slab allocation
of data in __alloc_skb that the the PFMEMALLOC reserves were used. If
page splitting is used, it is possible that pages will be allocated from
the PFMEMALLOC reserve without propagating this information to the skb.
This patch propagates page->pfmemalloc from pages allocated for fragments
to the skb.
It works by reintroducing and expanding the skb_alloc_page() API to take
an skb. If the page was allocated from pfmemalloc reserves, it is
automatically copied. If the driver allocates the page before the skb, it
should call skb_propagate_pfmemalloc() after the skb is allocated to
ensure the flag is copied properly.
Failure to do so is not critical. The resulting driver may perform slower
if it is used for swap-over-NBD or swap-over-NFS but it should not result
in failure.
[davem@davemloft.net: API rename and consistency]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Neil Brown <neilb@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-31 18:42:46 -07:00
Merge branch 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86
2012-07-30 11:54:53 -07:00
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-07-27 15:14:26 -07:00
ata/pata_arasan: remove conditional compilation of clk code
2012-07-30 17:25:12 -07:00
mm: factor out memory isolate functions
2012-07-31 18:42:45 -07:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2012-07-27 11:15:03 -04:00
virtio-blk: allow toggling host cache between writeback and writethrough
2012-07-30 13:30:52 +09:30
Virtio patches, mainly hotplugging fixes.
2012-07-30 13:24:37 -07:00
clk: validate pointer in __clk_disable()
2012-07-30 17:25:13 -07:00
arm-soc: new SoC support
2012-07-23 16:31:31 -07:00
ARM: arm-soc soc updates, take 2
2012-07-30 09:45:53 -07:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-07-26 14:28:55 -07:00
ARM: SoC fixes
2012-07-26 20:29:52 -07:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2012-07-24 17:12:54 -07:00
Merge branch 'devel'
2012-07-29 21:11:05 -03:00
MFD bits for the 3.6 merge window.
2012-07-30 12:41:17 -07:00
- Small fixes and optimizations.
2012-07-30 09:32:39 -07:00
firmware_map: make firmware_map_add_early() argument consistent with firmware_map_add_hotplug()
2012-07-30 17:25:17 -07:00
MFD bits for the 3.6 merge window.
2012-07-30 12:41:17 -07:00
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2012-07-30 10:06:23 -07:00
Merge branch 'next' into for-linus
2012-07-24 22:43:04 -07:00
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
2012-07-30 10:10:26 -07:00
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2012-07-30 19:03:41 -07:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-07-26 14:28:55 -07:00
InfiniBand/RDMA changes for the 3.6 merge window:
2012-07-24 13:56:26 -07:00
MFD bits for the 3.6 merge window.
2012-07-30 12:41:17 -07:00
IOMMU Updates for Linux v3.6-rc1
2012-07-24 16:24:11 -07:00
leds-lp8788: forgotten unlock at lp8788_led_work
2012-07-27 08:16:07 +08:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-30 17:25:34 -07:00
drivers/media/video/v4l2-ioctl.c: fix build
2012-07-31 18:42:39 -07:00
drivers/message/i2o/i2o_config.c: bound allocation
2012-07-30 17:25:17 -07:00
MFD bits for the 3.6 merge window.
2012-07-30 12:41:17 -07:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-30 17:25:34 -07:00
ARM: SoC fixes
2012-07-26 20:29:52 -07:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2012-07-30 11:45:52 -07:00
netvm: propagate page->pfmemalloc from skb_alloc_page to skb
2012-07-31 18:42:46 -07:00
Devicetree updates for 3.6
2012-07-24 14:07:22 -07:00
PCI changes for the 3.6 merge window:
2012-07-24 16:17:07 -07:00
PCI changes for the 3.6 merge window:
2012-07-24 16:17:07 -07:00
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-07-27 15:14:26 -07:00
Pin control changes for v3.6:
2012-07-24 14:05:46 -07:00
Merge branch 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86
2012-07-30 11:54:53 -07:00
Driver core merge for 3.6-rc1
2012-07-26 11:25:33 -07:00
pps: return PTR_ERR on error in device_create
2012-07-30 17:25:21 -07:00
pwm: pwm-tiehrpwm: PWM driver support for EHRPWM
2012-07-26 07:45:20 +02:00
regulator: Fix an s5m8767 build failure
2012-07-31 00:51:09 +02:00
A batch of remoteproc patches for 3.6:
2012-07-26 16:19:08 -07:00
A batch of remoteproc patches for 3.6:
2012-07-26 16:19:08 -07:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-30 17:25:34 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-07-26 18:09:01 -07:00
Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream
2012-07-25 15:58:48 -04:00
Merge branch 'common/pinctrl' into sh-latest
2012-07-20 16:42:59 +09:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2012-07-30 11:45:52 -07:00
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2012-07-30 19:03:41 -07:00
iscsi-target: Drop bogus struct file usage for iSCSI/SCTP
2012-07-21 02:44:13 -07:00
Merge branches 'acpi_pad', 'acpica', 'apei-bugzilla-43282', 'battery', 'cpuidle-coupled', 'cpuidle-tweaks', 'intel_idle-ivb', 'ost', 'red-hat-bz-772730', 'thermal', 'thermal-spear' and 'turbostat-v2' into release
2012-07-26 00:03:58 -04:00
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-07-27 15:14:26 -07:00
netvm: propagate page->pfmemalloc from skb_alloc_page to skb
2012-07-31 18:42:46 -07:00
vhost: make vhost work queue visible
2012-07-22 01:22:23 +03:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-30 17:25:34 -07:00
drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-manager
2011-10-14 02:56:02 -05:00
[SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning
2012-07-20 08:59:03 +01:00
Driver core merge for 3.6-rc1
2012-07-26 11:25:33 -07:00
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-07-27 15:14:26 -07:00
PCI changes for the 3.6 merge window:
2012-07-24 16:17:07 -07:00
0614002bb5