re-sync more patches
This commit is contained in:
Kyle McMartin
parent
f9204b5a27
commit
7918b0cd6c
@ -1,44 +0,0 @@
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diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
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index f737960..b1f8164 100644
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--- a/drivers/gpu/drm/i915/i915_drv.c
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+++ b/drivers/gpu/drm/i915/i915_drv.c
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@@ -509,6 +509,8 @@ i915_pci_remove(struct pci_dev *pdev)
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{
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struct drm_device *dev = pci_get_drvdata(pdev);
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+ pci_disable_device(pdev); /* core did previous enable */
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+
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drm_put_dev(dev);
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}
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diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
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index 300f64b..2e3db37 100644
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--- a/drivers/gpu/drm/i915/intel_dp.c
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+++ b/drivers/gpu/drm/i915/intel_dp.c
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@@ -795,7 +795,8 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp)
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{
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struct drm_device *dev = intel_dp->base.base.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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- u32 pp, idle_on_mask = PP_ON | PP_SEQUENCE_STATE_ON_IDLE;
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+ u32 pp, idle_on = PP_ON | PP_SEQUENCE_STATE_ON_IDLE;
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+ u32 idle_on_mask = PP_ON | PP_SEQUENCE_STATE_MASK;
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if (I915_READ(PCH_PP_STATUS) & PP_ON)
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return true;
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@@ -816,7 +817,7 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp)
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*/
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msleep(300);
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- if (wait_for((I915_READ(PCH_PP_STATUS) & idle_on_mask) == idle_on_mask,
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+ if (wait_for((I915_READ(PCH_PP_STATUS) & idle_on_mask) == idle_on,
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5000))
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DRM_ERROR("panel on wait timed out: 0x%08x\n",
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I915_READ(PCH_PP_STATUS));
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@@ -922,6 +923,7 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
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if (is_edp(intel_dp)) {
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ironlake_edp_backlight_off(dev);
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+ ironlake_edp_panel_off(dev);
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ironlake_edp_panel_on(intel_dp);
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if (!is_pch_edp(intel_dp))
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ironlake_edp_pll_on(encoder);
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28
kernel.spec
28
kernel.spec
@ -646,8 +646,6 @@ Patch470: die-floppy-die.patch
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Patch510: linux-2.6-silence-noise.patch
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Patch530: linux-2.6-silence-fbcon-logo.patch
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Patch570: linux-2.6-selinux-mprotect-checks.patch
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Patch580: linux-2.6-sparc-selinux-mprotect-checks.patch
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Patch610: hda_intel-prealloc-4mb-dmabuffer.patch
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@ -668,7 +666,6 @@ Patch1810: drm-nouveau-updates.patch
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Patch1824: drm-intel-next.patch
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# make sure the lvds comes back on lid open
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Patch1825: drm-intel-make-lvds-work.patch
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Patch1826: drm-intel-edp-fixes.patch
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Patch1827: drm-i915-gen4-has-non-power-of-two-strides.patch
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Patch1900: linux-2.6-intel-iommu-igfx.patch
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@ -688,9 +685,6 @@ Patch2901: linux-2.6-v4l-dvb-experimental.patch
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Patch2902: linux-2.6-v4l-dvb-uvcvideo-update.patch
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Patch2910: linux-2.6-v4l-dvb-add-lgdt3304-support.patch
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Patch2912: linux-2.6-v4l-dvb-ir-core-update.patch
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#Patch2916: lirc-staging-2.6.36-fixes.patch
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# fs fixes
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@ -710,10 +704,6 @@ Patch12205: runtime_pm_fixups.patch
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Patch12303: dmar-disable-when-ricoh-multifunction.patch
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Patch12401: mm-slub-do-not-wake-kswapd-for-slubs-speculative-high-order-allocations.patch
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Patch12402: mm-slub-do-not-take-expensive-steps-for-slubs-speculative-high-order-allocations.patch
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Patch12403: mm-vmscan-if-kswapd-has-been-running-too-long-allow-it-to-sleep.patch
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%endif
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BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
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@ -1242,12 +1232,6 @@ ApplyPatch linux-2.6-silence-noise.patch
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# Make fbcon not show the penguins with 'quiet'
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ApplyPatch linux-2.6-silence-fbcon-logo.patch
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# Fix the SELinux mprotect checks on executable mappings
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#ApplyPatch linux-2.6-selinux-mprotect-checks.patch
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# Fix SELinux for sparc
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# FIXME: Can we drop this now? See updated linux-2.6-selinux-mprotect-checks.patch
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#ApplyPatch linux-2.6-sparc-selinux-mprotect-checks.patch
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# Changes to upstream defaults.
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@ -1271,7 +1255,6 @@ ApplyOptionalPatch drm-nouveau-updates.patch
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ApplyOptionalPatch drm-intel-next.patch
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ApplyPatch drm-intel-make-lvds-work.patch
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ApplyPatch linux-2.6-intel-iommu-igfx.patch
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#ApplyPatch drm-intel-edp-fixes.patch
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# rhbz#681285 (i965: crash in brw_wm_surface_state.c::prepare_wm_surfaces()
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# where intelObj->mt == NULL)
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#ApplyPatch drm-i915-gen4-has-non-power-of-two-strides.patch
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@ -1289,13 +1272,9 @@ ApplyOptionalPatch linux-2.6-v4l-dvb-fixes.patch
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ApplyOptionalPatch linux-2.6-v4l-dvb-update.patch
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ApplyOptionalPatch linux-2.6-v4l-dvb-experimental.patch
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#ApplyPatch linux-2.6-v4l-dvb-uvcvideo-update.patch
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#ApplyPatch linux-2.6-v4l-dvb-ir-core-update.patch
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###FIX###ApplyPatch linux-2.6-v4l-dvb-add-lgdt3304-support.patch
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# http://www.lirc.org/
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#ApplyOptionalPatch lirc-staging-2.6.36-fixes.patch
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# Patches headed upstream
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ApplyPatch disable-i8042-check-on-apple-mac.patch
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@ -1312,11 +1291,6 @@ ApplyPatch neuter_intel_microcode_load.patch
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# rhbz#605888
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ApplyPatch dmar-disable-when-ricoh-multifunction.patch
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### disable, riel reports they aggravate a VM_BUG_ON
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#ApplyPatch mm-slub-do-not-wake-kswapd-for-slubs-speculative-high-order-allocations.patch
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#ApplyPatch mm-slub-do-not-take-expensive-steps-for-slubs-speculative-high-order-allocations.patch
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#ApplyPatch mm-vmscan-if-kswapd-has-been-running-too-long-allow-it-to-sleep.patch
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# END OF PATCH APPLICATIONS
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%endif
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@ -1929,6 +1903,8 @@ fi
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- linux-2.6-defaults-pci_no_msi.patch: drop, haven't toggled the default
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in many moons.
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- linux-2.6-defaults-pci_use_crs.patch: ditto.
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- linux-2.6-selinux-mprotect-checks.patch: upstream a while ago.
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- drop some more unapplied crud.
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* Fri Jun 17 2011 Kyle McMartin <kmcmartin@redhat.com> 3.0-0.rc3.git5.1
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- Try updating to a git snapshot for the first time in 3.0-rc,
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@ -1,124 +0,0 @@
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This needs a fixed toolchain, and a userspace rebuild to work.
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For these reasons, it's had difficulty getting upstream.
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ie, Fedora has a new enough toolchain, and has been rebuilt, so we don't need
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the ifdefs. Other distros don't/haven't, and this patch would break them
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if pushed upstream.
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Subject: [Fwd: Re: [PATCH] Disable execmem for sparc]
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From: Stephen Smalley <sds@tycho.nsa.gov>
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To: Dave Jones <davej@redhat.com>
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Date: Wed, 28 Apr 2010 16:04:56 -0400
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Message-Id: <1272485096.6013.326.camel@moss-pluto.epoch.ncsc.mil>
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-------- Forwarded Message --------
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From: Stephen Smalley <sds@tycho.nsa.gov>
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To: David Miller <davem@davemloft.net>
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Cc: tcallawa@redhat.com, dennis@ausil.us, sparclinux@vger.kernel.org, dgilmore@redhat.com, jmorris@namei.org, eparis@parisplace.org
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Subject: Re: [PATCH] Disable execmem for sparc
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Date: Wed, 28 Apr 2010 15:57:57 -0400
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On Tue, 2010-04-27 at 11:47 -0700, David Miller wrote:
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> From: "Tom \"spot\" Callaway" <tcallawa@redhat.com>
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> Date: Tue, 27 Apr 2010 14:20:21 -0400
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>
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> > [root@apollo ~]$ cat /proc/2174/maps
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> > 00010000-00014000 r-xp 00000000 fd:00 15466577
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> > /sbin/mingetty
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> > 00022000-00024000 rwxp 00002000 fd:00 15466577
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> > /sbin/mingetty
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> > 00024000-00046000 rwxp 00000000 00:00 0
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> > [heap]
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>
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> SELINUX probably barfs on the executable heap, the PLT is in the HEAP
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> just like powerpc32 and that's why VM_DATA_DEFAULT_FLAGS has to set
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> both executable and writable.
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>
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> You also can't remove the CONFIG_PPC32 ifdefs in selinux, since
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> because of the VM_DATA_DEFAULT_FLAGS setting used still in that arch,
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> the heap will always have executable permission, just like sparc does.
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> You have to support those binaries forever, whether you like it or not.
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>
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> Let's just replace the CONFIG_PPC32 ifdef in SELINUX with CONFIG_PPC32
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> || CONFIG_SPARC as in Tom's original patch and let's be done with
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> this.
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>
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> In fact I would go through all the arch/ header files and check the
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> VM_DATA_DEFAULT_FLAGS settings and add the necessary new ifdefs to the
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> SELINUX code so that other platforms don't have the pain of having to
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> go through this process too.
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To avoid maintaining per-arch ifdefs, it seems that we could just
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directly use (VM_DATA_DEFAULT_FLAGS & VM_EXEC) as the basis for deciding
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whether to enable or disable these checks. VM_DATA_DEFAULT_FLAGS isn't
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constant on some architectures but instead depends on
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current->personality, but we want this applied uniformly. So we'll just
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use the initial task state to determine whether or not to enable these
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checks.
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Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
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diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
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index ebee467..a03fd74 100644
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--- a/security/selinux/hooks.c
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+++ b/security/selinux/hooks.c
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@@ -2999,13 +2999,15 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
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return file_has_perm(cred, file, av);
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}
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+static int default_noexec;
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+
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static int file_map_prot_check(struct file *file, unsigned long prot, int shared)
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{
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const struct cred *cred = current_cred();
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int rc = 0;
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-#ifndef CONFIG_PPC32
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- if ((prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
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+ if (default_noexec &&
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+ (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
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/*
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* We are making executable an anonymous mapping or a
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* private file mapping that will also be writable.
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@@ -3015,7 +3017,6 @@ static int file_map_prot_check(struct file *file, unsigned long prot, int shared
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if (rc)
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goto error;
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}
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-#endif
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if (file) {
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/* read access is always possible with a mapping */
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@@ -3076,8 +3077,8 @@ static int selinux_file_mprotect(struct vm_area_struct *vma,
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if (selinux_checkreqprot)
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prot = reqprot;
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-#ifndef CONFIG_PPC32
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- if ((prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) {
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+ if (default_noexec &&
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+ (prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) {
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int rc = 0;
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if (vma->vm_start >= vma->vm_mm->start_brk &&
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vma->vm_end <= vma->vm_mm->brk) {
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@@ -3099,7 +3100,6 @@ static int selinux_file_mprotect(struct vm_area_struct *vma,
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if (rc)
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return rc;
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}
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-#endif
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return file_map_prot_check(vma->vm_file, prot, vma->vm_flags&VM_SHARED);
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}
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@@ -5662,6 +5662,8 @@ static __init int selinux_init(void)
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/* Set the security state for the initial task. */
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cred_init_security();
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+ default_noexec = !(VM_DATA_DEFAULT_FLAGS & VM_EXEC);
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+
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sel_inode_cache = kmem_cache_create("selinux_inode_security",
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sizeof(struct inode_security_struct),
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0, SLAB_PANIC, NULL);
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--
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Stephen Smalley
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National Security Agency
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@ -1,35 +0,0 @@
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diff -up linux-2.6.24.sparc64/security/selinux/hooks.c.BAD linux-2.6.24.sparc64/security/selinux/hooks.c
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--- linux-2.6.24.sparc64/security/selinux/hooks.c.BAD 2008-03-21 14:28:06.000000000 -0400
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+++ linux-2.6.24.sparc64/security/selinux/hooks.c 2008-03-21 14:29:10.000000000 -0400
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@@ -3018,6 +3018,7 @@ static int file_map_prot_check(struct fi
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const struct cred *cred = current_cred();
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int rc = 0;
|
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+#ifndef CONFIG_SPARC
|
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if ((prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
|
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/*
|
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* We are making executable an anonymous mapping or a
|
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@@ -3028,6 +3029,7 @@ static int file_map_prot_check(struct fi
|
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if (rc)
|
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goto error;
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}
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+#endif
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|
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if (file) {
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/* read access is always possible with a mapping */
|
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@@ -3081,6 +3081,7 @@ static int selinux_file_mprotect(struct
|
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if (selinux_checkreqprot)
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prot = reqprot;
|
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+#ifndef CONFIG_SPARC
|
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if ((prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) {
|
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rc = 0;
|
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if (vma->vm_start >= vma->vm_mm->start_brk &&
|
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@@ -3103,6 +3103,7 @@ static int selinux_file_mprotect(struct
|
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if (rc)
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return rc;
|
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}
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+#endif
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return file_map_prot_check(vma->vm_file, prot, vma->vm_flags&VM_SHARED);
|
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}
|
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File diff suppressed because it is too large
Load Diff
@ -1,78 +0,0 @@
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From linux-fsdevel-owner@vger.kernel.org Fri May 13 10:04:18 2011
|
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From: Mel Gorman <mgorman@suse.de>
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To: Andrew Morton <akpm@linux-foundation.org>
|
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
|
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Colin King <colin.king@canonical.com>,
|
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Raghavendra D Prabhu <raghu.prabhu13@gmail.com>,
|
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Jan Kara <jack@suse.cz>, Chris Mason <chris.mason@oracle.com>,
|
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Christoph Lameter <cl@linux.com>,
|
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Pekka Enberg <penberg@kernel.org>,
|
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Rik van Riel <riel@redhat.com>,
|
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Johannes Weiner <hannes@cmpxchg.org>,
|
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linux-fsdevel <linux-fsdevel@vger.kernel.org>,
|
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linux-mm <linux-mm@kvack.org>,
|
||||
linux-kernel <linux-kernel@vger.kernel.org>,
|
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linux-ext4 <linux-ext4@vger.kernel.org>,
|
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Mel Gorman <mgorman@suse.de>
|
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Subject: [PATCH 3/4] mm: slub: Do not take expensive steps for SLUBs speculative high-order allocations
|
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Date: Fri, 13 May 2011 15:03:23 +0100
|
||||
Message-Id: <1305295404-12129-4-git-send-email-mgorman@suse.de>
|
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X-Mailing-List: linux-fsdevel@vger.kernel.org
|
||||
|
||||
To avoid locking and per-cpu overhead, SLUB optimisically uses
|
||||
high-order allocations and falls back to lower allocations if they
|
||||
fail. However, by simply trying to allocate, the caller can enter
|
||||
compaction or reclaim - both of which are likely to cost more than the
|
||||
benefit of using high-order pages in SLUB. On a desktop system, two
|
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users report that the system is getting stalled with kswapd using large
|
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amounts of CPU.
|
||||
|
||||
This patch prevents SLUB taking any expensive steps when trying to use
|
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high-order allocations. Instead, it is expected to fall back to smaller
|
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orders more aggressively. Testing was somewhat inconclusive on how much
|
||||
this helped but it makes sense that falling back to order-0 allocations
|
||||
is faster than entering compaction or direct reclaim.
|
||||
|
||||
Signed-off-by: Mel Gorman <mgorman@suse.de>
|
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---
|
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mm/page_alloc.c | 3 ++-
|
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mm/slub.c | 3 ++-
|
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2 files changed, 4 insertions(+), 2 deletions(-)
|
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|
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diff --git a/mm/page_alloc.c b/mm/page_alloc.c
|
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index 9f8a97b..057f1e2 100644
|
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--- a/mm/page_alloc.c
|
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+++ b/mm/page_alloc.c
|
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@@ -1972,6 +1972,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
|
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{
|
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int alloc_flags = ALLOC_WMARK_MIN | ALLOC_CPUSET;
|
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const gfp_t wait = gfp_mask & __GFP_WAIT;
|
||||
+ const gfp_t can_wake_kswapd = !(gfp_mask & __GFP_NO_KSWAPD);
|
||||
|
||||
/* __GFP_HIGH is assumed to be the same as ALLOC_HIGH to save a branch. */
|
||||
BUILD_BUG_ON(__GFP_HIGH != (__force gfp_t) ALLOC_HIGH);
|
||||
@@ -1984,7 +1985,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
|
||||
*/
|
||||
alloc_flags |= (__force int) (gfp_mask & __GFP_HIGH);
|
||||
|
||||
- if (!wait) {
|
||||
+ if (!wait && can_wake_kswapd) {
|
||||
/*
|
||||
* Not worth trying to allocate harder for
|
||||
* __GFP_NOMEMALLOC even if it can't schedule.
|
||||
diff --git a/mm/slub.c b/mm/slub.c
|
||||
index 98c358d..c5797ab 100644
|
||||
--- a/mm/slub.c
|
||||
+++ b/mm/slub.c
|
||||
@@ -1170,7 +1170,8 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
|
||||
* Let the initial higher-order allocation fail under memory pressure
|
||||
* so we fall-back to the minimum order allocation.
|
||||
*/
|
||||
- alloc_gfp = (flags | __GFP_NOWARN | __GFP_NORETRY | __GFP_NO_KSWAPD) & ~__GFP_NOFAIL;
|
||||
+ alloc_gfp = (flags | __GFP_NOWARN | __GFP_NO_KSWAPD) &
|
||||
+ ~(__GFP_NOFAIL | __GFP_WAIT | __GFP_REPEAT);
|
||||
|
||||
page = alloc_slab_page(alloc_gfp, node, oo);
|
||||
if (unlikely(!page)) {
|
||||
--
|
||||
1.7.3.4
|
||||
@ -1,52 +0,0 @@
|
||||
From linux-fsdevel-owner@vger.kernel.org Fri May 13 10:04:00 2011
|
||||
From: Mel Gorman <mgorman@suse.de>
|
||||
To: Andrew Morton <akpm@linux-foundation.org>
|
||||
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
|
||||
Colin King <colin.king@canonical.com>,
|
||||
Raghavendra D Prabhu <raghu.prabhu13@gmail.com>,
|
||||
Jan Kara <jack@suse.cz>, Chris Mason <chris.mason@oracle.com>,
|
||||
Christoph Lameter <cl@linux.com>,
|
||||
Pekka Enberg <penberg@kernel.org>,
|
||||
Rik van Riel <riel@redhat.com>,
|
||||
Johannes Weiner <hannes@cmpxchg.org>,
|
||||
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
|
||||
linux-mm <linux-mm@kvack.org>,
|
||||
linux-kernel <linux-kernel@vger.kernel.org>,
|
||||
linux-ext4 <linux-ext4@vger.kernel.org>,
|
||||
Mel Gorman <mgorman@suse.de>
|
||||
Subject: [PATCH 2/4] mm: slub: Do not wake kswapd for SLUBs speculative high-order allocations
|
||||
Date: Fri, 13 May 2011 15:03:22 +0100
|
||||
Message-Id: <1305295404-12129-3-git-send-email-mgorman@suse.de>
|
||||
X-Mailing-List: linux-fsdevel@vger.kernel.org
|
||||
|
||||
To avoid locking and per-cpu overhead, SLUB optimisically uses
|
||||
high-order allocations and falls back to lower allocations if they
|
||||
fail. However, by simply trying to allocate, kswapd is woken up to
|
||||
start reclaiming at that order. On a desktop system, two users report
|
||||
that the system is getting locked up with kswapd using large amounts
|
||||
of CPU. Using SLAB instead of SLUB made this problem go away.
|
||||
|
||||
This patch prevents kswapd being woken up for high-order allocations.
|
||||
Testing indicated that with this patch applied, the system was much
|
||||
harder to hang and even when it did, it eventually recovered.
|
||||
|
||||
Signed-off-by: Mel Gorman <mgorman@suse.de>
|
||||
---
|
||||
mm/slub.c | 2 +-
|
||||
1 files changed, 1 insertions(+), 1 deletions(-)
|
||||
|
||||
diff --git a/mm/slub.c b/mm/slub.c
|
||||
index 9d2e5e4..98c358d 100644
|
||||
--- a/mm/slub.c
|
||||
+++ b/mm/slub.c
|
||||
@@ -1170,7 +1170,7 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
|
||||
* Let the initial higher-order allocation fail under memory pressure
|
||||
* so we fall-back to the minimum order allocation.
|
||||
*/
|
||||
- alloc_gfp = (flags | __GFP_NOWARN | __GFP_NORETRY) & ~__GFP_NOFAIL;
|
||||
+ alloc_gfp = (flags | __GFP_NOWARN | __GFP_NORETRY | __GFP_NO_KSWAPD) & ~__GFP_NOFAIL;
|
||||
|
||||
page = alloc_slab_page(alloc_gfp, node, oo);
|
||||
if (unlikely(!page)) {
|
||||
--
|
||||
1.7.3.4
|
||||
@ -1,47 +0,0 @@
|
||||
From linux-fsdevel-owner@vger.kernel.org Fri May 13 10:03:52 2011
|
||||
From: Mel Gorman <mgorman@suse.de>
|
||||
To: Andrew Morton <akpm@linux-foundation.org>
|
||||
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
|
||||
Colin King <colin.king@canonical.com>,
|
||||
Raghavendra D Prabhu <raghu.prabhu13@gmail.com>,
|
||||
Jan Kara <jack@suse.cz>, Chris Mason <chris.mason@oracle.com>,
|
||||
Christoph Lameter <cl@linux.com>,
|
||||
Pekka Enberg <penberg@kernel.org>,
|
||||
Rik van Riel <riel@redhat.com>,
|
||||
Johannes Weiner <hannes@cmpxchg.org>,
|
||||
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
|
||||
linux-mm <linux-mm@kvack.org>,
|
||||
linux-kernel <linux-kernel@vger.kernel.org>,
|
||||
linux-ext4 <linux-ext4@vger.kernel.org>,
|
||||
Mel Gorman <mgorman@suse.de>
|
||||
Subject: [PATCH 4/4] mm: vmscan: If kswapd has been running too long, allow it to sleep
|
||||
Date: Fri, 13 May 2011 15:03:24 +0100
|
||||
Message-Id: <1305295404-12129-5-git-send-email-mgorman@suse.de>
|
||||
X-Mailing-List: linux-fsdevel@vger.kernel.org
|
||||
|
||||
Under constant allocation pressure, kswapd can be in the situation where
|
||||
sleeping_prematurely() will always return true even if kswapd has been
|
||||
running a long time. Check if kswapd needs to be scheduled.
|
||||
|
||||
Signed-off-by: Mel Gorman <mgorman@suse.de>
|
||||
---
|
||||
mm/vmscan.c | 4 ++++
|
||||
1 files changed, 4 insertions(+), 0 deletions(-)
|
||||
|
||||
diff --git a/mm/vmscan.c b/mm/vmscan.c
|
||||
index af24d1e..4d24828 100644
|
||||
--- a/mm/vmscan.c
|
||||
+++ b/mm/vmscan.c
|
||||
@@ -2251,6 +2251,10 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining,
|
||||
unsigned long balanced = 0;
|
||||
bool all_zones_ok = true;
|
||||
|
||||
+ /* If kswapd has been running too long, just sleep */
|
||||
+ if (need_resched())
|
||||
+ return false;
|
||||
+
|
||||
/* If a direct reclaimer woke kswapd within HZ/10, it's premature */
|
||||
if (remaining)
|
||||
return true;
|
||||
--
|
||||
1.7.3.4
|
||||
Loading…
Reference in New Issue
Block a user