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2015-02-13Merge branch 'rtmerge'Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Conflicts: arch/arm/kvm/mmu.c arch/arm/mm/proc-v7-3level.S arch/powerpc/kernel/vdso32/getcpu.S drivers/crypto/caam/error.c drivers/crypto/caam/sg_sw_sec4.h drivers/usb/host/ehci-fsl.c
2015-02-13lockdep: Selftest: Only do hardirq context test for raw spinlockYong Zhang
On -rt there is no softirq context any more and rwlock is sleepable, disable softirq context test and rwlock+irq test. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Yong Zhang <yong.zhang@windriver.com> Link: http://lkml.kernel.org/r/1334559716-18447-3-git-send-email-yong.zhang0@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RTThomas Gleixner
We can't deal with the cpumask allocations which happen in atomic context (see arch/x86/kernel/apic/io_apic.c) on RT right now. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13debugobjects-rt.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13idr: Use local lock instead of preempt enable/disableThomas Gleixner
We need to protect the per cpu variable and prevent migration. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13lockref: disable 64bit cmpxchg optimization on RTSebastian Andrzej Siewior
One of the requirements is that the lock has to fit in an u32 which does not work with the sleeping locks. We would have to use the bare raw locks for this and I would like to avoid this. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2015-02-13percpu-rwsem: compile fixSebastian Andrzej Siewior
The shortcut on mainline skip lockdep. No idea why this is a good thing. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2015-02-13rt: Add the preempt-rt lock replacement APIsThomas Gleixner
Map spinlocks, rwlocks, rw_semaphores and semaphores to the rt_mutex based locking functions for preempt-rt. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13rwsem-add-rt-variant.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13sched: Generic migrate_disablePeter Zijlstra
Make migrate_disable() be a preempt_disable() for !rt kernels. This allows generic code to use it but still enforces that these code sections stay relatively small. A preemptible migrate_disable() accessible for general use would allow people growing arbitrary per-cpu crap instead of clean these things up. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-275i87sl8e1jcamtchmehonm@git.kernel.org
2015-02-13sched-migrate-disable.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13radix-tree-rt-aware.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13genirq: Disable DEBUG_SHIRQ for rtThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13mm: scatterlist dont disable irqs on RTThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-02-13Reset to 3.12.37Scott Wood
2014-12-11rheap: move rheap.c from arch/powerpc/lib/ to lib/Zhao Qiang
qe need to use the rheap, so move it to public directory. Signed-off-by: Zhao Qiang <B45475@freescale.com> --- upstream link: http://patchwork.ozlabs.org/patch/393170/ it is under discussion. Change-Id: Ied2765d6e0eb3b7ade0fef02cfe226c8a8566c5f Reviewed-on: http://git.am.freescale.net:8181/16841 Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com> Reviewed-by: Xiaobo Xie <X.Xie@freescale.com> Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
2014-05-14lockdep: Selftest: Only do hardirq context test for raw spinlockYong Zhang
On -rt there is no softirq context any more and rwlock is sleepable, disable softirq context test and rwlock+irq test. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Yong Zhang <yong.zhang@windriver.com> Link: http://lkml.kernel.org/r/1334559716-18447-3-git-send-email-yong.zhang0@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RTThomas Gleixner
We can't deal with the cpumask allocations which happen in atomic context (see arch/x86/kernel/apic/io_apic.c) on RT right now. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14debugobjects-rt.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14idr: Use local lock instead of preempt enable/disableThomas Gleixner
We need to protect the per cpu variable and prevent migration. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14lockref: disable 64bit cmpxchg optimization on RTSebastian Andrzej Siewior
One of the requirements is that the lock has to fit in an u32 which does not work with the sleeping locks. We would have to use the bare raw locks for this and I would like to avoid this. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2014-05-14percpu-rwsem: compile fixSebastian Andrzej Siewior
The shortcut on mainline skip lockdep. No idea why this is a good thing. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2014-05-14rt: Add the preempt-rt lock replacement APIsThomas Gleixner
Map spinlocks, rwlocks, rw_semaphores and semaphores to the rt_mutex based locking functions for preempt-rt. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14rwsem-add-rt-variant.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14sched: Generic migrate_disablePeter Zijlstra
Make migrate_disable() be a preempt_disable() for !rt kernels. This allows generic code to use it but still enforces that these code sections stay relatively small. A preemptible migrate_disable() accessible for general use would allow people growing arbitrary per-cpu crap instead of clean these things up. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-275i87sl8e1jcamtchmehonm@git.kernel.org
2014-05-14sched-migrate-disable.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14radix-tree-rt-aware.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14genirq: Disable DEBUG_SHIRQ for rtThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14mm: scatterlist dont disable irqs on RTThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-14Reset to 3.12.19Scott Wood
2014-05-14Merge remote-tracking branch 'stable/linux-3.12.y' into sdk-v1.6.xScott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Conflicts: arch/sparc/Kconfig drivers/tty/tty_buffer.c
2014-04-18netlink: don't compare the nul-termination in nla_strcmpPablo Neira
[ Upstream commit 8b7b932434f5eee495b91a2804f5b64ebb2bc835 ] nla_strcmp compares the string length plus one, so it's implicitly including the nul-termination in the comparison. int nla_strcmp(const struct nlattr *nla, const char *str) { int len = strlen(str) + 1; ... d = memcmp(nla_data(nla), str, len); However, if NLA_STRING is used, userspace can send us a string without the nul-termination. This is a problem since the string comparison will not match as the last byte may be not the nul-termination. Fix this by skipping the comparison of the nul-termination if the attribute data is nul-terminated. Suggested by Thomas Graf. Cc: Florian Westphal <fw@strlen.de> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
2014-04-10Merge branch 'rtmerge' into sdk-v1.6.xScott Wood
This merges 3.12.15-rt25. Signed-off-by: Scott Wood <scottwood@freescale.com> Conflicts: drivers/misc/Makefile drivers/net/ethernet/freescale/gianfar.c drivers/net/ethernet/freescale/gianfar_ethtool.c drivers/net/ethernet/freescale/gianfar_sysfs.c
2014-04-10lockdep: Selftest: Only do hardirq context test for raw spinlockYong Zhang
On -rt there is no softirq context any more and rwlock is sleepable, disable softirq context test and rwlock+irq test. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Yong Zhang <yong.zhang@windriver.com> Link: http://lkml.kernel.org/r/1334559716-18447-3-git-send-email-yong.zhang0@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RTThomas Gleixner
We can't deal with the cpumask allocations which happen in atomic context (see arch/x86/kernel/apic/io_apic.c) on RT right now. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10debugobjects-rt.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10idr: Use local lock instead of preempt enable/disableThomas Gleixner
We need to protect the per cpu variable and prevent migration. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10lockref: disable 64bit cmpxchg optimization on RTSebastian Andrzej Siewior
One of the requirements is that the lock has to fit in an u32 which does not work with the sleeping locks. We would have to use the bare raw locks for this and I would like to avoid this. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2014-04-10percpu-rwsem: compile fixSebastian Andrzej Siewior
The shortcut on mainline skip lockdep. No idea why this is a good thing. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2014-04-10rt: Add the preempt-rt lock replacement APIsThomas Gleixner
Map spinlocks, rwlocks, rw_semaphores and semaphores to the rt_mutex based locking functions for preempt-rt. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10rwsem-add-rt-variant.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10sched: Generic migrate_disablePeter Zijlstra
Make migrate_disable() be a preempt_disable() for !rt kernels. This allows generic code to use it but still enforces that these code sections stay relatively small. A preemptible migrate_disable() accessible for general use would allow people growing arbitrary per-cpu crap instead of clean these things up. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-275i87sl8e1jcamtchmehonm@git.kernel.org
2014-04-10sched-migrate-disable.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10radix-tree-rt-aware.patchThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10genirq: Disable DEBUG_SHIRQ for rtThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-10mm: scatterlist dont disable irqs on RTThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-08Merge remote-tracking branch 'stable/linux-3.12.y' into sdk-v1.6.xScott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Conflicts: drivers/mmc/card/block.c
2014-04-08Merge branch 'merge' into sdk-v1.6.xScott Wood
This reverts v3.13-rc3+ (78fd82238d0e5716) to v3.12, except for commits which I noticed which appear relevant to the SDK. Signed-off-by: Scott Wood <scottwood@freescale.com> Conflicts: arch/powerpc/include/asm/kvm_host.h arch/powerpc/kvm/book3s_hv_rmhandlers.S arch/powerpc/kvm/book3s_interrupts.S arch/powerpc/kvm/e500.c arch/powerpc/kvm/e500mc.c arch/powerpc/sysdev/fsl_soc.h drivers/Kconfig drivers/cpufreq/ppc-corenet-cpufreq.c drivers/dma/fsldma.c drivers/dma/s3c24xx-dma.c drivers/misc/Makefile drivers/mmc/host/sdhci-of-esdhc.c drivers/mtd/devices/m25p80.c drivers/net/ethernet/freescale/gianfar.h drivers/platform/Kconfig drivers/platform/Makefile drivers/spi/spi-fsl-espi.c include/crypto/algapi.h include/linux/netdev_features.h include/linux/skbuff.h include/net/ip.h net/core/ethtool.c
2014-04-07Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12Scott Wood
2014-03-12mm: do not walk all of system memory during show_memMel Gorman
commit c78e93630d15b5f5774213aad9bdc9f52473a89b upstream. It has been reported on very large machines that show_mem is taking almost 5 minutes to display information. This is a serious problem if there is an OOM storm. The bulk of the cost is in show_mem doing a very expensive PFN walk to give us the following information Total RAM: Also available as totalram_pages Highmem pages: Also available as totalhigh_pages Reserved pages: Can be inferred from the zone structure Shared pages: PFN walk required Unshared pages: PFN walk required Quick pages: Per-cpu walk required Only the shared/unshared pages requires a full PFN walk but that information is useless. It is also inaccurate as page pins of unshared pages would be accounted for as shared. Even if the information was accurate, I'm struggling to think how the shared/unshared information could be useful for debugging OOM conditions. Maybe it was useful before rmap existed when reclaiming shared pages was costly but it is less relevant today. The PFN walk could be optimised a bit but why bother as the information is useless. This patch deletes the PFN walker and infers the total RAM, highmem and reserved pages count from struct zone. It omits the shared/unshared page usage on the grounds that it is useless. It also corrects the reporting of HighMem as HighMem/MovableOnly as ZONE_MOVABLE has similar problems to HighMem with respect to lowmem/highmem exhaustion. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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