[rt] Update to 3.14.3-rt5
svn path=/dists/sid/linux/; revision=21334
This commit is contained in:
Ben Hutchings
parent
dde57c671d
commit
abe58b9c4e
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@ -122,6 +122,7 @@ linux (3.14.4-1) UNRELEASED; urgency=medium
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(Closes: #747364)
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* [hppa] udeb: Add xfs-modules (Closes: #746506)
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* udeb: Add mtip32xx, nvme to sata-modules
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* [rt] Update to 3.14.3-rt5
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-- Ben Hutchings <ben@decadent.org.uk> Thu, 01 May 2014 01:50:30 +0100
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@ -2,7 +2,7 @@ From d6a6675d436897cd1b09e299436df3499abd753e Mon Sep 17 00:00:00 2001
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From: Allen Pais <allen.pais@oracle.com>
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Date: Fri, 13 Dec 2013 09:44:41 +0530
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Subject: [PATCH 1/3] sparc64: use generic rwsem spinlocks rt
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Signed-off-by: Allen Pais <allen.pais@oracle.com>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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@ -1,7 +1,7 @@
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Tue, 19 Mar 2013 14:44:30 +0100
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Subject: [PATCH] kernel/SRCU: provide a static initializer
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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There are macros for static initializer for the three out of four
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possible notifier types, that are:
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@ -2,7 +2,7 @@ From 65513f34449eedb6b84c24a3583266534c1627e4 Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Mon, 11 Mar 2013 17:09:55 +0100
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Subject: [PATCH 2/6] x86/highmem: add a "already used pte" check
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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This is a copy from kmap_atomic_prot().
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@ -2,7 +2,7 @@ From e2ca4d092d9c6e6b07b465b4d81da207bbcc7437 Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Mon, 11 Mar 2013 21:37:27 +0100
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Subject: [PATCH 3/6] arm/highmem: flush tlb on unmap
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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The tlb should be flushed on unmap and thus make the mapping entry
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invalid. This is only done in the non-debug case which does not look
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@ -3,7 +3,7 @@ From: Thomas Gleixner <tglx@linutronix.de>
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Date: Fri, 1 Mar 2013 11:17:42 +0100
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Subject: [PATCH 5/6] futex: Ensure lock/unlock symetry versus pi_lock and
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hash bucket lock
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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In exit_pi_state_list() we have the following locking construct:
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@ -33,7 +33,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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--- a/kernel/futex.c
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+++ b/kernel/futex.c
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@@ -708,7 +708,9 @@ void exit_pi_state_list(struct task_stru
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@@ -710,7 +710,9 @@ void exit_pi_state_list(struct task_stru
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* task still owns the PI-state:
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*/
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if (head->next != next) {
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@ -2,7 +2,7 @@ From 116a588e1e4b108bfd01b5ae8de602c12aec3323 Mon Sep 17 00:00:00 2001
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From: Nicholas Mc Guire <der.herr@hofr.at>
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Date: Fri, 17 Jan 2014 20:44:03 +0100
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Subject: [PATCH 7/7] API cleanup - use local_lock not __local_lock for soft
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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trivial API cleanup - kernel/softirq.c was mimiking local_lock.
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@ -2,7 +2,7 @@ From b72b514282ffad0d665ea94932b968f388304079 Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Thu, 21 Mar 2013 19:01:05 +0100
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Subject: [PATCH] HACK: printk: drop the logbuf_lock more often
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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The lock is hold with irgs off. The latency drops 500us+ on my arm bugs
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with a "full" buffer after executing "dmesg" on the shell.
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31
debian/patches/features/all/rt/Revert-migrate_disable-pushd-down-in-atomic_dec_and_.patch
vendored
Normal file
31
debian/patches/features/all/rt/Revert-migrate_disable-pushd-down-in-atomic_dec_and_.patch
vendored
Normal file
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@ -0,0 +1,31 @@
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From f556726721d611754d20ff00226fe029e2495274 Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Fri, 2 May 2014 17:32:30 +0200
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Subject: [PATCH] Revert "migrate_disable pushd down in
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atomic_dec_and_spin_lock"
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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This reverts commit ff9c870c3e27d58c9512fad122e91436681fee5a.
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Cc: stable-rt@vger.kernel.org
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---
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kernel/locking/rtmutex.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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--- a/kernel/locking/rtmutex.c
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+++ b/kernel/locking/rtmutex.c
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@@ -1028,12 +1028,12 @@ int atomic_dec_and_spin_lock(atomic_t *a
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/* Subtract 1 from counter unless that drops it to 0 (ie. it was 1) */
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if (atomic_add_unless(atomic, -1, 1))
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return 0;
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+ migrate_disable();
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rt_spin_lock(lock);
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- if (atomic_dec_and_test(atomic)){
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- migrate_disable();
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+ if (atomic_dec_and_test(atomic))
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return 1;
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- }
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rt_spin_unlock(lock);
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+ migrate_enable();
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return 0;
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}
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EXPORT_SYMBOL(atomic_dec_and_spin_lock);
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@ -3,7 +3,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Fri, 3 Jan 2014 14:55:48 +0100
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Subject: [PATCH] Revert "x86: Disable IST stacks for debug/int 3/stack fault
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for PREEMPT_RT"
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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where do I start. Let me explain what is going on here. The code
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sequence
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@ -1,7 +1,7 @@
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From: Steven Rostedt <rostedt@goodmis.org>
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Date: Wed, 13 Feb 2013 09:26:05 -0500
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Subject: [PATCH] acpi/rt: Convert acpi_gbl_hardware lock back to a raw_spinlock_t
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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We hit the following bug with 3.6-rt:
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@ -2,7 +2,7 @@ From 155cf657f6ddcade424253eb58d03a170dc9f64f Mon Sep 17 00:00:00 2001
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From: Nicholas Mc Guire <der.herr@hofr.at>
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Date: Wed, 20 Nov 2013 07:22:09 +0800
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Subject: [PATCH 1/2] allow preemption in recursive migrate_disable call
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Minor cleanup in migrate_disable/migrate_enable. The recursive case
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does not need to disable preemption as it is "pinned" to the current
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@ -1,7 +1,7 @@
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Subject: mm: Fixup all fault handlers to check current->pagefault_disable
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Thu, 17 Mar 2011 11:32:28 +0100
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Necessary for decoupling pagefault disable from preempt count.
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@ -1,7 +1,7 @@
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From: Benedikt Spranger <b.spranger@linutronix.de>
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Date: Sat, 6 Mar 2010 17:47:10 +0100
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Subject: ARM: AT91: PIT: Remove irq handler when clock event is unused
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Setup and remove the interrupt handler in clock event mode selection.
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This avoids calling the (shared) interrupt handler when the device is
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@ -1,7 +1,7 @@
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Sat, 1 May 2010 18:29:35 +0200
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Subject: ARM: at91: tclib: Default to tclib timer for RT
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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RT is not too happy about the shared timer interrupt in AT91
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devices. Default to tclib timer for RT.
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@ -1,7 +1,7 @@
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From: Frank Rowand <frank.rowand@am.sony.com>
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Date: Mon, 19 Sep 2011 14:51:14 -0700
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Subject: [PATCH] preempt-rt: Convert arm boot_lock to raw
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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The arm boot_lock is used by the secondary processor startup code. The locking
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task is the idle thread, which has idle->sched_class == &idle_sched_class.
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@ -1,7 +1,7 @@
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Subject: arm-disable-highmem-on-rt.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Mon, 18 Jul 2011 17:09:28 +0200
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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@ -1,7 +1,7 @@
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Subject: arm-enable-highmem-for-rt.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Wed, 13 Feb 2013 11:03:11 +0100
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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@ -1,7 +1,7 @@
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Subject: arm-preempt-lazy-support.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Wed, 31 Oct 2012 12:04:11 +0100
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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@ -5,7 +5,7 @@ Subject: [PATCH RT] arm/unwind: use a raw_spin_lock
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Mostly unwind is done with irqs enabled however SLUB may call it with
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irqs disabled while creating a new SLUB cache.
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@ -1,7 +1,7 @@
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From: Steven Rostedt <srostedt@redhat.com>
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Date: Fri, 3 Jul 2009 08:44:29 -0500
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Subject: ata: Do not disable interrupts in ide code for preempt-rt
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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Use the local_irq_*_nort variants.
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@ -0,0 +1,82 @@
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From de8fa902784181346b91bd121fba824a588fa99c Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Sat, 3 May 2014 11:00:29 +0200
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Subject: [PATCH] blk-mq: revert raw locks, post pone notifier to POST_DEAD
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
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The blk_mq_cpu_notify_lock should be raw because some CPU down levels
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are called with interrupts off. The notifier itself calls currently one
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function that is blk_mq_hctx_notify().
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That function acquires the ctx->lock lock which is sleeping and I would
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prefer to keep it that way. That function only moves IO-requests from
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the CPU that is going offline to another CPU and it is currently the
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only one. Therefore I revert the list lock back to sleeping spinlocks
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and let the notifier run at POST_DEAD time.
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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block/blk-mq-cpu.c | 17 ++++++++++-------
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block/blk-mq.c | 2 +-
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2 files changed, 11 insertions(+), 8 deletions(-)
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--- a/block/blk-mq-cpu.c
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+++ b/block/blk-mq-cpu.c
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@@ -11,7 +11,7 @@
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#include "blk-mq.h"
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static LIST_HEAD(blk_mq_cpu_notify_list);
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-static DEFINE_RAW_SPINLOCK(blk_mq_cpu_notify_lock);
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+static DEFINE_SPINLOCK(blk_mq_cpu_notify_lock);
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static int blk_mq_main_cpu_notify(struct notifier_block *self,
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unsigned long action, void *hcpu)
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@@ -19,12 +19,15 @@ static int blk_mq_main_cpu_notify(struct
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unsigned int cpu = (unsigned long) hcpu;
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struct blk_mq_cpu_notifier *notify;
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- raw_spin_lock(&blk_mq_cpu_notify_lock);
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+ if (action != CPU_POST_DEAD && action != CPU_POST_DEAD)
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+ return NOTIFY_OK;
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+
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+ spin_lock(&blk_mq_cpu_notify_lock);
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list_for_each_entry(notify, &blk_mq_cpu_notify_list, list)
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notify->notify(notify->data, action, cpu);
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- raw_spin_unlock(&blk_mq_cpu_notify_lock);
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+ spin_unlock(&blk_mq_cpu_notify_lock);
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return NOTIFY_OK;
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}
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@@ -32,16 +35,16 @@ void blk_mq_register_cpu_notifier(struct
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{
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BUG_ON(!notifier->notify);
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- raw_spin_lock(&blk_mq_cpu_notify_lock);
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+ spin_lock(&blk_mq_cpu_notify_lock);
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list_add_tail(¬ifier->list, &blk_mq_cpu_notify_list);
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- raw_spin_unlock(&blk_mq_cpu_notify_lock);
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+ spin_unlock(&blk_mq_cpu_notify_lock);
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}
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void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier)
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{
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- raw_spin_lock(&blk_mq_cpu_notify_lock);
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+ spin_lock(&blk_mq_cpu_notify_lock);
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list_del(¬ifier->list);
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- raw_spin_unlock(&blk_mq_cpu_notify_lock);
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+ spin_unlock(&blk_mq_cpu_notify_lock);
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}
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void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
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--- a/block/blk-mq.c
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+++ b/block/blk-mq.c
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@@ -971,7 +971,7 @@ static void blk_mq_hctx_notify(void *dat
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struct blk_mq_ctx *ctx;
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LIST_HEAD(tmp);
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- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
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+ if (action != CPU_POST_DEAD && action != CPU_POST_DEAD)
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return;
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/*
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|
|
@ -2,7 +2,7 @@ From 7632d1dd96f75bdba997003fa61ab14e57afb0fe Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Wed, 9 Apr 2014 10:37:23 +0200
|
||||
Subject: [PATCH 5/5] block: mq: use cpu_light()
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
there is a might sleep splat because get_cpu() disables preemption and
|
||||
later we grab a lock. As a workaround for this we use get_cpu_light()
|
||||
|
|
@ -13,9 +13,9 @@ on the member and this works with irq off but on RT we would need the extra lock
|
|||
|
||||
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
---
|
||||
block/blk-mq.c | 14 +++++++++++---
|
||||
block/blk-mq.c | 20 +++++++++++++++++---
|
||||
block/blk-mq.h | 1 +
|
||||
2 files changed, 12 insertions(+), 3 deletions(-)
|
||||
2 files changed, 18 insertions(+), 3 deletions(-)
|
||||
|
||||
--- a/block/blk-mq.c
|
||||
+++ b/block/blk-mq.c
|
||||
|
|
@ -32,23 +32,28 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|||
}
|
||||
|
||||
/*
|
||||
@@ -41,12 +45,13 @@ static struct blk_mq_ctx *__blk_mq_get_c
|
||||
@@ -41,12 +45,18 @@ static struct blk_mq_ctx *__blk_mq_get_c
|
||||
*/
|
||||
static struct blk_mq_ctx *blk_mq_get_ctx(struct request_queue *q)
|
||||
{
|
||||
- return __blk_mq_get_ctx(q, get_cpu());
|
||||
+ return __blk_mq_get_ctx(q, get_cpu_light());
|
||||
+}
|
||||
+
|
||||
+static void __blk_mq_put_ctx(struct blk_mq_ctx *ctx)
|
||||
+{
|
||||
+ spin_unlock(&ctx->cpu_lock);
|
||||
}
|
||||
|
||||
static void blk_mq_put_ctx(struct blk_mq_ctx *ctx)
|
||||
{
|
||||
- put_cpu();
|
||||
+ spin_unlock(&ctx->cpu_lock);
|
||||
+ __blk_mq_put_ctx(ctx);
|
||||
+ put_cpu_light();
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -897,7 +902,9 @@ static void blk_mq_make_request(struct r
|
||||
@@ -897,7 +907,9 @@ static void blk_mq_make_request(struct r
|
||||
if (list_empty(&plug->mq_list))
|
||||
trace_block_plug(q);
|
||||
else if (request_count >= BLK_MAX_REQUEST_COUNT) {
|
||||
|
|
@ -58,7 +63,15 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|||
trace_block_plug(q);
|
||||
}
|
||||
list_add_tail(&rq->queuelist, &plug->mq_list);
|
||||
@@ -1212,6 +1219,7 @@ static void blk_mq_init_cpu_queues(struc
|
||||
@@ -973,6 +985,7 @@ static void blk_mq_hctx_notify(void *dat
|
||||
clear_bit(ctx->index_hw, hctx->ctx_map);
|
||||
}
|
||||
spin_unlock(&ctx->lock);
|
||||
+ __blk_mq_put_ctx(ctx);
|
||||
|
||||
if (list_empty(&tmp))
|
||||
return;
|
||||
@@ -1212,6 +1225,7 @@ static void blk_mq_init_cpu_queues(struc
|
||||
memset(__ctx, 0, sizeof(*__ctx));
|
||||
__ctx->cpu = i;
|
||||
spin_lock_init(&__ctx->lock);
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: block: Shorten interrupt disabled regions
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 22 Jun 2011 19:47:02 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Moving the blk_sched_flush_plug() call out of the interrupt/preempt
|
||||
disabled region in the scheduler allows us to replace
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: block: Use cpu_chill() for retry loops
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Thu, 20 Dec 2012 18:28:26 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Retry loops on RT might loop forever when the modifying side was
|
||||
preempted. Steven also observed a live lock when there was a
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:29:58 -0500
|
||||
Subject: bug: BUG_ON/WARN_ON variants dependend on RT/!RT
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Benedikt Spranger <b.spranger@linutronix.de>
|
||||
Date: Mon, 8 Mar 2010 18:57:04 +0100
|
||||
Subject: clocksource: TCLIB: Allow higher clock rates for clock events
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
As default the TCLIB uses the 32KiHz base clock rate for clock events.
|
||||
Add a compile time selection to allow higher clock resulution.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: completion: Use simple wait queues
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 11 Jan 2013 11:23:51 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Completions have no long lasting callbacks and therefor do not need
|
||||
the complex waitqueue variant. Use simple waitqueues which reduces the
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: cond-resched-lock-rt-tweak.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 17 Jul 2011 22:51:33 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: cond-resched-softirq-fix.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Thu, 14 Jul 2011 09:56:44 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 56f43bce737d3f28ad470c95fa84f824cb0d55ad Mon Sep 17 00:00:00 2001
|
|||
From: Nicholas Mc Guire <der.herr@hofr.at>
|
||||
Date: Thu, 21 Nov 2013 22:52:30 -0500
|
||||
Subject: [PATCH 2/2] condition migration_disable on lock acquisition
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
No need to unconditionally migrate_disable (what is it protecting ?) and
|
||||
re-enable on failure to acquire the lock.
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 107fb2b43f5c80686ee6454713f4963728ca2737 Mon Sep 17 00:00:00 2001
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Thu, 5 Dec 2013 09:16:52 -0500
|
||||
Subject: [PATCH] cpu hotplug: Document why PREEMPT_RT uses a spinlock
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The patch:
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: cpu: Make hotplug.lock a "sleeping" spinlock on RT
|
||||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Fri, 02 Mar 2012 10:36:57 -0500
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Tasks can block on hotplug.lock in pin_current_cpu(), but their state
|
||||
might be != RUNNING. So the mutex wakeup will set the state
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Steven Rostedt <srostedt@redhat.com>
|
||||
Date: Mon, 16 Jul 2012 08:07:43 +0000
|
||||
Subject: cpu/rt: Rework cpu down for PREEMPT_RT
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Bringing a CPU down is a pain with the PREEMPT_RT kernel because
|
||||
tasks can be preempted in many more places than in non-RT. In
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: cpu-rt-variants.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 17 Jun 2011 15:42:38 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From a1b3b9eafb916f839a09dcde745518a5ad6703db Mon Sep 17 00:00:00 2001
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Tue, 4 Mar 2014 12:28:32 -0500
|
||||
Subject: [PATCH] cpu_chill: Add a UNINTERRUPTIBLE hrtimer_nanosleep
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
We hit another bug that was caused by switching cpu_chill() from
|
||||
msleep() to hrtimer_nanosleep().
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From linux-rt-users-owner@vger.kernel.org Thu Nov 7 03:07:12 2013
|
|||
From: Tiejun Chen <tiejun.chen@windriver.com>
|
||||
Subject: [v1][PATCH] cpu_down: move migrate_enable() back
|
||||
Date: Thu, 7 Nov 2013 10:06:07 +0800
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Commit 08c1ab68, "hotplug-use-migrate-disable.patch", intends to
|
||||
use migrate_enable()/migrate_disable() to replace that combination
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 14 Dec 2011 01:03:49 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
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.
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 0fcf777e2f217e61564bd30a2c39cb49d0e0b8c3 Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Fri, 21 Feb 2014 17:24:04 +0100
|
||||
Subject: [PATCH] crypto: Reduce preempt disabled regions, more algos
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Don Estabrook reported
|
||||
| kernel: WARNING: CPU: 2 PID: 858 at kernel/sched/core.c:2428 migrate_disable+0xed/0x100()
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: debugobjects-rt.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 17 Jul 2011 21:41:35 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,88 +0,0 @@
|
|||
From 27bcad87397de27b92b8651630771e032cf87116 Mon Sep 17 00:00:00 2001
|
||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Fri, 11 Apr 2014 20:12:43 +0200
|
||||
Subject: [PATCH] disable lazy preempt on x86-64
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
|
||||
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
---
|
||||
arch/x86/Kconfig | 2 +-
|
||||
arch/x86/kernel/entry_64.S | 28 ++++++++--------------------
|
||||
2 files changed, 9 insertions(+), 21 deletions(-)
|
||||
|
||||
--- a/arch/x86/Kconfig
|
||||
+++ b/arch/x86/Kconfig
|
||||
@@ -21,7 +21,7 @@ config X86_64
|
||||
### Arch settings
|
||||
config X86
|
||||
def_bool y
|
||||
- select HAVE_PREEMPT_LAZY
|
||||
+ select HAVE_PREEMPT_LAZY if X86_32
|
||||
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
|
||||
select ARCH_MIGHT_HAVE_PC_PARPORT
|
||||
select ARCH_MIGHT_HAVE_PC_SERIO
|
||||
--- a/arch/x86/kernel/entry_64.S
|
||||
+++ b/arch/x86/kernel/entry_64.S
|
||||
@@ -658,8 +658,8 @@ GLOBAL(system_call_after_swapgs)
|
||||
/* Handle reschedules */
|
||||
/* edx: work, edi: workmask */
|
||||
sysret_careful:
|
||||
- testl $_TIF_NEED_RESCHED_MASK,%edx
|
||||
- jz sysret_signal
|
||||
+ bt $TIF_NEED_RESCHED,%edx
|
||||
+ jnc sysret_signal
|
||||
TRACE_IRQS_ON
|
||||
ENABLE_INTERRUPTS(CLBR_NONE)
|
||||
pushq_cfi %rdi
|
||||
@@ -771,8 +771,8 @@ GLOBAL(int_with_check)
|
||||
/* First do a reschedule test. */
|
||||
/* edx: work, edi: workmask */
|
||||
int_careful:
|
||||
- testl $_TIF_NEED_RESCHED_MASK,%edx
|
||||
- jz int_very_careful
|
||||
+ bt $TIF_NEED_RESCHED,%edx
|
||||
+ jnc int_very_careful
|
||||
TRACE_IRQS_ON
|
||||
ENABLE_INTERRUPTS(CLBR_NONE)
|
||||
pushq_cfi %rdi
|
||||
@@ -1071,8 +1071,8 @@ ENTRY(native_iret)
|
||||
/* edi: workmask, edx: work */
|
||||
retint_careful:
|
||||
CFI_RESTORE_STATE
|
||||
- testl $_TIF_NEED_RESCHED_MASK,%edx
|
||||
- jz retint_signal
|
||||
+ bt $TIF_NEED_RESCHED,%edx
|
||||
+ jnc retint_signal
|
||||
TRACE_IRQS_ON
|
||||
ENABLE_INTERRUPTS(CLBR_NONE)
|
||||
pushq_cfi %rdi
|
||||
@@ -1104,19 +1104,7 @@ ENTRY(native_iret)
|
||||
/* rcx: threadinfo. interrupts off. */
|
||||
ENTRY(retint_kernel)
|
||||
cmpl $0,PER_CPU_VAR(__preempt_count)
|
||||
- jz check_int_off
|
||||
-
|
||||
- # atleast preempt count == 0 ?
|
||||
- cmpl $_TIF_NEED_RESCHED,PER_CPU_VAR(__preempt_count)
|
||||
- jnz retint_restore_args
|
||||
-
|
||||
- cmpl $0, TI_preempt_lazy_count(%rcx)
|
||||
- jnz retint_restore_args
|
||||
-
|
||||
- bt $TIF_NEED_RESCHED_LAZY,TI_flags(%rcx)
|
||||
- jnc retint_restore_args
|
||||
-
|
||||
-check_int_off:
|
||||
+ jnz retint_restore_args
|
||||
bt $9,EFLAGS-ARGOFFSET(%rsp) /* interrupts off? */
|
||||
jnc retint_restore_args
|
||||
call preempt_schedule_irq
|
||||
@@ -1552,7 +1540,7 @@ ENTRY(paranoid_exit)
|
||||
movq %rsp,%rdi /* &pt_regs */
|
||||
call sync_regs
|
||||
movq %rax,%rsp /* switch stack for scheduling */
|
||||
- testl $_TIF_NEED_RESCHED_MASK,%ebx
|
||||
+ testl $_TIF_NEED_RESCHED,%ebx
|
||||
jnz paranoid_schedule
|
||||
movl %ebx,%edx /* arg3: thread flags */
|
||||
TRACE_IRQS_ON
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
From b862d66791544573af3ec23690f3dfa9718250b1 Mon Sep 17 00:00:00 2001
|
||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Fri, 2 May 2014 21:19:26 +0200
|
||||
Subject: [PATCH] disable preempt lazy on x86-64
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
it still explodes
|
||||
|
||||
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
---
|
||||
arch/x86/Kconfig | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
--- a/arch/x86/Kconfig
|
||||
+++ b/arch/x86/Kconfig
|
||||
@@ -21,7 +21,7 @@ config X86_64
|
||||
### Arch settings
|
||||
config X86
|
||||
def_bool y
|
||||
- select HAVE_PREEMPT_LAZY
|
||||
+ select HAVE_PREEMPT_LAZY if X86_32
|
||||
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
|
||||
select ARCH_MIGHT_HAVE_PC_PARPORT
|
||||
select ARCH_MIGHT_HAVE_PC_SERIO
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: dm: Make rt aware
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Mon, 14 Nov 2011 23:06:09 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Use the BUG_ON_NORT variant for the irq_disabled() checks. RT has
|
||||
interrupts legitimately enabled here as we cant deadlock against the
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:29:24 -0500
|
||||
Subject: drivers/net: Use disable_irq_nosync() in 8139too
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Use disable_irq_nosync() instead of disable_irq() as this might be
|
||||
called in atomic context with netpoll.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sat, 20 Jun 2009 11:36:54 +0200
|
||||
Subject: drivers/net: fix livelock issues
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Preempt-RT runs into a live lock issue with the NETDEV_TX_LOCKED micro
|
||||
optimization. The reason is that the softirq thread is rescheduling
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Thu, 1 Apr 2010 20:20:57 +0200
|
||||
Subject: drivers: net: gianfar: Make RT aware
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The adjust_link() disables interrupts before taking the queue
|
||||
locks. On RT those locks are converted to "sleeping" locks and
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Fri, 3 Jul 2009 08:30:00 -0500
|
||||
Subject: drivers/net: vortex fix locking issues
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Argh, cut and paste wasn't enough...
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:29:30 -0500
|
||||
Subject: drivers: random: Reduce preempt disabled region
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
No need to keep preemption disabled across the whole function.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:30:01 -0500
|
||||
Subject: [PATCH] serial: 8250: Clean up the locking for -rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
In -RT the spin_lock_irqsave() does not spin but sleep if the lock is
|
||||
taken. Before that, local_irq_save() is invoked which disables
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: drivers-tty-fix-omap-lock-crap.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Thu, 28 Jul 2011 13:32:57 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: drivers-tty-pl011-irq-disable-madness.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Tue, 08 Jan 2013 21:36:51 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From d841118ac80c5bfb18f47984bc40687eed08b714 Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Thu, 25 Apr 2013 18:12:52 +0200
|
||||
Subject: [PATCH] drm/i915: drop trace_i915_gem_ring_dispatch on rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
This tracepoint is responsible for:
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: early-printk-consolidate.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sat, 23 Jul 2011 11:04:08 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: epoll.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 08 Jul 2011 16:35:35 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: filemap-fix-up.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 17 Jun 2011 18:56:24 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Subject: x86: Do not disable preemption in int3 on 32bit
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Preemption must be disabled before enabling interrupts in do_trap
|
||||
on x86_64 because the stack in use for int3 and debug is a per CPU
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 53a9508f5983092928b0e6e12f400b686e1f04b1 Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Mon, 28 Oct 2013 11:50:06 +0100
|
||||
Subject: [PATCH] a few open coded completions
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: fs-block-rt-support.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Tue, 14 Jun 2011 17:05:09 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: fs: dcache: Use cpu_chill() in trylock loops
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 07 Mar 2012 21:00:34 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Retry loops on RT might loop forever when the modifying side was
|
||||
preempted. Use cpu_chill() instead of cpu_relax() to let the system
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Mike Galbraith <mgalbraith@suse.de>
|
||||
Date: Wed, 11 Jul 2012 22:05:20 +0000
|
||||
Subject: fs, jbd: pull your plug when waiting for space
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
With an -rt kernel, and a heavy sync IO load, tasks can jam
|
||||
up on journal locks without unplugging, which can lead to
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 18 Mar 2011 10:11:25 +0100
|
||||
Subject: fs: jbd/jbd2: Make state lock and journal head lock rt safe
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
bit_spin_locks break under RT.
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From c28e07715162bb1e1567a935b45772ca85a5267c Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Mon, 17 Feb 2014 17:30:03 +0100
|
||||
Subject: [PATCH] fs: jbd2: pull your plug when waiting for space
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Two cps in parallel managed to stall the the ext4 fs. It seems that
|
||||
journal code is either waiting for locks or sleeping waiting for
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 19 Jul 2009 08:44:27 -0500
|
||||
Subject: fs: namespace preemption fix
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
On RT we cannot loop with preemption disabled here as
|
||||
mnt_make_readonly() might have been preempted. We can safely enable
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Mike Galbraith <efault@gmx.de>
|
||||
Date: Fri, 3 Jul 2009 08:44:12 -0500
|
||||
Subject: fs: ntfs: disable interrupt only on !RT
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
On Sat, 2007-10-27 at 11:44 +0200, Ingo Molnar wrote:
|
||||
> * Nick Piggin <nickpiggin@yahoo.com.au> wrote:
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 18 Mar 2011 09:18:52 +0100
|
||||
Subject: buffer_head: Replace bh_uptodate_lock for -rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Wrap the bit_spin_lock calls into a separate inline and add the RT
|
||||
replacements with a real spinlock.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: ftrace-migrate-disable-tracing.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 17 Jul 2011 21:56:42 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Subject: futex: Fix bug on when a requeued RT task times out
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Requeue with timeout causes a bug with PREEMPT_RT_FULL.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:29:57 -0500
|
||||
Subject: genirq: disable irqpoll on -rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Creates long latencies for no value
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 76666dbbdd40e963e7df84c123fc9aea4a2bcc69 Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Wed, 21 Aug 2013 17:48:46 +0200
|
||||
Subject: [PATCH] genirq: do not invoke the affinity callback via a workqueue
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Joe Korty reported, that __irq_set_affinity_locked() schedules a
|
||||
workqueue while holding a rawlock which results in a might_sleep()
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: genirq-force-threading.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 03 Apr 2011 11:57:29 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 18 Mar 2011 10:22:04 +0100
|
||||
Subject: genirq: Disable DEBUG_SHIRQ for rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: hotplug: Lightweight get online cpus
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 15 Jun 2011 12:36:06 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
get_online_cpus() is a heavy weight function which involves a global
|
||||
mutex. migrate_disable() wants a simpler construct which prevents only
|
||||
|
|
@ -14,8 +14,8 @@ tasks on the cpu which should be brought down.
|
|||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
include/linux/cpu.h | 4 +
|
||||
kernel/cpu.c | 122 +++++++++++++++++++++++++++++++++++++++++++++++++++-
|
||||
2 files changed, 124 insertions(+), 2 deletions(-)
|
||||
kernel/cpu.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++-
|
||||
2 files changed, 123 insertions(+), 1 deletion(-)
|
||||
|
||||
--- a/include/linux/cpu.h
|
||||
+++ b/include/linux/cpu.h
|
||||
|
|
@ -185,15 +185,6 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
|||
|
||||
err = __cpu_notify(CPU_DOWN_PREPARE | mod, hcpu, -1, &nr_calls);
|
||||
if (err) {
|
||||
@@ -333,7 +449,7 @@ static int __ref _cpu_down(unsigned int
|
||||
/* CPU didn't die: tell everyone. Can't complain. */
|
||||
smpboot_unpark_threads(cpu);
|
||||
cpu_notify_nofail(CPU_DOWN_FAILED | mod, hcpu);
|
||||
- goto out_release;
|
||||
+ goto out_cancel;
|
||||
}
|
||||
BUG_ON(cpu_online(cpu));
|
||||
|
||||
@@ -356,6 +472,8 @@ static int __ref _cpu_down(unsigned int
|
||||
check_for_tasks(cpu);
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: hotplug: sync_unplug: No "\n" in task name
|
||||
From: Yong Zhang <yong.zhang0@gmail.com>
|
||||
Date: Sun, 16 Oct 2011 18:56:43 +0800
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Otherwise the output will look a little odd.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: hotplug-use-migrate-disable.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 17 Jul 2011 19:35:29 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 180cdb93d796bf52c919f5e3df30af83aa6d46ca Mon Sep 17 00:00:00 2001
|
|||
From: Yang Shi <yang.shi@windriver.com>
|
||||
Date: Mon, 16 Sep 2013 14:09:19 -0700
|
||||
Subject: [PATCH] hrtimer: Move schedule_work call to helper thread
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
When run ltp leapsec_timer test, the following call trace is caught:
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Fri, 3 Jul 2009 08:44:31 -0500
|
||||
Subject: hrtimer: fixup hrtimer callback changes for preempt-rt
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
In preempt-rt we can not call the callbacks which take sleeping locks
|
||||
from the timer interrupt context.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: hrtimer: Raise softirq if hrtimer irq stalled
|
||||
From: Watanabe <shunsuke.watanabe@tel.com>
|
||||
Date: Sun, 28 Oct 2012 11:13:44 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
When the hrtimer stall detection hits the softirq is not raised.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:29:34 -0500
|
||||
Subject: hrtimers: prepare full preemption
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Make cancellation of a running callback in softirq context safe
|
||||
against preemption.
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From c19bf3baaa55918486b868ab17aae0c0c220e51f Mon Sep 17 00:00:00 2001
|
|||
From: Mike Galbraith <bitbucket@online.de>
|
||||
Date: Fri, 30 Aug 2013 07:57:25 +0200
|
||||
Subject: [PATCH] hwlat-detector: Don't ignore threshold module parameter
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
If the user specified a threshold at module load time, use it.
|
||||
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@ From: Steven Rostedt <rostedt@goodmis.org>
|
|||
Date: Mon, 19 Aug 2013 17:33:25 -0400
|
||||
Subject: [PATCH 1/3] hwlat-detector: Update hwlat_detector to add outer loop
|
||||
detection
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The hwlat_detector reads two timestamps in a row, then reports any
|
||||
gap between those calls. The problem is, it misses everything between
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 42b3963c5d3dcdb54226fc6bbb6b5fbcf3f2ddee Mon Sep 17 00:00:00 2001
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Mon, 19 Aug 2013 17:33:27 -0400
|
||||
Subject: [PATCH 3/3] hwlat-detector: Use thread instead of stop machine
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
There's no reason to use stop machine to search for hardware latency.
|
||||
Simply disabling interrupts while running the loop will do enough to
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 4aaca90c0255caee9a55371afaecb32365123762 Mon Sep 17 00:00:00 2001
|
|||
From: Steven Rostedt <rostedt@goodmis.org>
|
||||
Date: Mon, 19 Aug 2013 17:33:26 -0400
|
||||
Subject: [PATCH 2/3] hwlat-detector: Use trace_clock_local if available
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
As ktime_get() calls into the timing code which does a read_seq(), it
|
||||
may be affected by other CPUS that touch that lock. To remove this
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: hwlatdetect.patch
|
||||
From: Carsten Emde <C.Emde@osadl.org>
|
||||
Date: Tue, 19 Jul 2011 13:53:12 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Jon Masters developed this wonderful SMI detector. For details please
|
||||
consult Documentation/hwlat_detector.txt. It could be ported to Linux
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 5145351047b216cca13aaca99f939a9a594c6c4d Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Thu, 21 Mar 2013 11:35:49 +0100
|
||||
Subject: [PATCH 2/3] i2c/omap: drop the lock hard irq context
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The lock is taken while reading two registers. On RT the first lock is
|
||||
taken in hard irq where it might sleep and in the threaded irq.
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Subject: gpu/i915: don't open code these things
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The opencode part is gone in 1f83fee0 ("drm/i915: clear up wedged transitions")
|
||||
the owner check is still there.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:30:16 -0500
|
||||
Subject: ide: Do not disable interrupts for PREEMPT-RT
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Use the local_irq_*_nort variants.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Subject: idr: Use local lock instead of preempt enable/disable
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
We need to protect the per cpu variable and prevent migration.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Sven-Thorsten Dietrich <sdietrich@novell.com>
|
||||
Date: Fri, 3 Jul 2009 08:30:35 -0500
|
||||
Subject: infiniband: Mellanox IB driver patch use _nort() primitives
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Fixes in_atomic stack-dump, when Mellanox module is loaded into the RT
|
||||
Kernel.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:30:16 -0500
|
||||
Subject: input: gameport: Do not disable interrupts on PREEMPT_RT
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Use the _nort() primitives.
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From: Ingo Molnar <mingo@elte.hu>
|
||||
Date: Fri, 3 Jul 2009 08:30:12 -0500
|
||||
Subject: ipc: Make the ipc code -rt aware
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
RT serializes the code with the (rt)spinlock but keeps preemption
|
||||
enabled. Some parts of the code need to be atomic nevertheless.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: ipc/mqueue: Add a critical section to avoid a deadlock
|
||||
From: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp>
|
||||
Date: Sat, 23 Jul 2011 11:57:36 +0900
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
(Repost for v3.0-rt1 and changed the distination addreses)
|
||||
I have tested the following patch on v3.0-rt1 with PREEMPT_RT_FULL.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: ipc/sem: Rework semaphore wakeups
|
||||
From: Peter Zijlstra <peterz@infradead.org>
|
||||
Date: Wed, 14 Sep 2011 11:57:04 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Current sysv sems have a weird ass wakeup scheme that involves keeping
|
||||
preemption disabled over a potential O(n^2) loop and busy waiting on
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: genirq: Allow disabling of softirq processing in irq thread context
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Tue, 31 Jan 2012 13:01:27 +0100
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
The processing of softirqs in irq thread context is a performance gain
|
||||
for the non-rt workloads of a system, but it's counterproductive for
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 8e48945ae26991b40973b233f34937477dcf97ab Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Fri, 31 Jan 2014 14:20:31 +0100
|
||||
Subject: [PATCH 1/7] irq_work: allow certain work in hard irq context
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
irq_work is processed in softirq context on -RT because we want to avoid
|
||||
long latencies which might arise from processing lots of perf events.
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: jump-label-rt.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 13 Jul 2011 11:03:16 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -1,16 +1,15 @@
|
|||
Subject: kconfig-disable-a-few-options-rt.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Sun, 24 Jul 2011 12:11:43 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Disable stuff which is known to have issues on RT
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
arch/Kconfig | 1 +
|
||||
drivers/net/Kconfig | 1 +
|
||||
mm/Kconfig | 2 +-
|
||||
3 files changed, 3 insertions(+), 1 deletion(-)
|
||||
arch/Kconfig | 1 +
|
||||
mm/Kconfig | 2 +-
|
||||
2 files changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
--- a/arch/Kconfig
|
||||
+++ b/arch/Kconfig
|
||||
|
|
@ -22,16 +21,6 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
|||
select RING_BUFFER
|
||||
select RING_BUFFER_ALLOW_SWAP
|
||||
help
|
||||
--- a/drivers/net/Kconfig
|
||||
+++ b/drivers/net/Kconfig
|
||||
@@ -160,6 +160,7 @@ config VXLAN
|
||||
|
||||
config NETCONSOLE
|
||||
tristate "Network console logging support"
|
||||
+ depends on !PREEMPT_RT_FULL
|
||||
---help---
|
||||
If you want to log kernel messages over the network, enable this.
|
||||
See <file:Documentation/networking/netconsole.txt> for details.
|
||||
--- a/mm/Kconfig
|
||||
+++ b/mm/Kconfig
|
||||
@@ -393,7 +393,7 @@ config NOMMU_INITIAL_TRIM_EXCESS
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
Subject: kconfig-preempt-rt-full.patch
|
||||
From: Thomas Gleixner <tglx@linutronix.de>
|
||||
Date: Wed, 29 Jun 2011 14:58:57 +0200
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||
---
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|||
Date: Fri, 7 Jun 2013 22:37:06 +0200
|
||||
Subject: [PATCH] kernel/cpu: fix cpu down problem if kthread's cpu is
|
||||
going down
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
If kthread is pinned to CPUx and CPUx is going down then we get into
|
||||
trouble:
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 4c6df3d78817c20a147c0291f6600d002c0910d3 Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Fri, 14 Jun 2013 17:16:35 +0200
|
||||
Subject: [PATCH] kernel/hotplug: restore original cpu mask oncpu/down
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
If a task which is allowed to run only on CPU X puts CPU Y down then it
|
||||
will be allowed on all CPUs but the on CPU Y after it comes back from
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ From 9a1a63848887fd99e6be49a3925d65751e424c8a Mon Sep 17 00:00:00 2001
|
|||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||
Date: Wed, 19 Feb 2014 11:56:06 +0100
|
||||
Subject: [PATCH] kernel/hrtimer: be non-freezeable in cpu_chill()
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz
|
||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.3-rt5.tar.xz
|
||||
|
||||
Since we replaced msleep() by hrtimer I see now and then (rarely) this:
|
||||
|
||||
|
|
|
|||
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Reference in New Issue