Nicholas Piggin d8e2a40535 powerpc/watchdog: Improve watchdog lock primitive ... - Hard-disable interrupts before taking the lock, which prevents soft-NMI re-entrancy and therefore can prevent deadlocks. - Use raw_ variants of local_irq_disable to avoid irq debugging. - When the lock is contended, spin at low SMT priority, using loads only, and with interrupts enabled (where possible). Some stalls have been noticed at high loads that go away with improved locking. There should not be so much locking contention in the first place (which is addressed in a subsequent patch), but locking should still be improved. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-08-09 23:45:28 +10:00
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alpha	Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-06 22:07:44 -07:00
arc	arc: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-10 03:43:21 +09:00
arm	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
arm64	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
blackfin	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
c6x	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
cris	Kbuild updates for v4.13 (2nd)	2017-07-13 13:37:57 -07:00
frv	FRV: tlbflush: move asmlinkage before return type	2017-07-12 16:26:04 -07:00
h8300	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
hexagon	hexagon: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-10 03:43:26 +09:00
ia64	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
m32r	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
m68k	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
metag	metag: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-10 03:43:30 +09:00
microblaze	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
mips	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
mn10300	kernel/watchdog: introduce arch_touch_nmi_watchdog()	2017-07-12 16:26:02 -07:00
nios2	nios2: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-11 21:33:43 +09:00
openrisc	openrisc: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-11 21:33:50 +09:00
parisc	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
powerpc	powerpc/watchdog: Improve watchdog lock primitive	2017-08-09 23:45:28 +10:00
s390	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
score	Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-06 22:07:44 -07:00
sh	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
sparc	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
tile	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
um	Merge branch 'for-linus-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2017-07-15 10:49:33 -07:00
unicore32	unicore32: move generic-y of exported headers to uapi/asm/Kbuild	2017-07-11 21:33:52 +09:00
x86	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
xtensa	Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-15 11:17:52 -07:00
.gitignore
Kconfig	include/linux/string.h: add the option of fortified string.h functions	2017-07-12 16:26:03 -07:00