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0459ddfdb3
linux/arch/powerpc
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Nicholas Piggin 0459ddfdb3 powerpc: NMI IPI improve lock primitive 
When the NMI IPI lock is contended, spin at low SMT priority, using
loads only, and with interrupts enabled (where possible). This
improves behaviour under high contention (e.g., a system crash when
a number of CPUs are trying to enter the debugger).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-09 23:45:26 +10:00
..
boot powerpc/boot: Fix 64-bit boot wrapper build with non-biarch compiler 2017-07-28 19:35:46 +10:00
configs powerpc/configs: Re-enable HARD/SOFT lockup detectors 2017-08-09 23:45:13 +10:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-05-02 15:53:46 -07:00
include Linux v4.13-rc1 2017-07-31 20:20:29 +10:00
kernel powerpc: NMI IPI improve lock primitive 2017-08-09 23:45:26 +10:00
kvm Linux v4.13-rc1 2017-07-31 20:20:29 +10:00
lib powerpc fixes for 4.13 #2 2017-07-14 15:33:15 -07:00
math-emu Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
mm Linux v4.13-rc1 2017-07-31 20:20:29 +10:00
net bpf: Add jited_len to struct bpf_prog 2017-06-06 15:41:24 -04:00
oprofile ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
perf powerpc/perf: Add POWER9 alternate PM_RUN_CYC and PM_RUN_INST_CMPL events 2017-07-12 12:21:49 +10:00
platforms powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails 2017-08-08 20:21:23 +10:00
purgatory kexec, x86/purgatory: Unbreak it and clean it up 2017-03-10 20:55:09 +01:00
sysdev powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
tools powerpc/64: Tool to check head sections location sanity 2017-05-30 14:59:51 +10:00
xmon powerpc/xmon: Add patch_instruction() support for xmon 2017-07-03 23:12:19 +10:00
Kconfig include/linux/string.h: add the option of fortified string.h functions 2017-07-12 16:26:03 -07:00
Kconfig.debug powerpc/xmon: Enable disassembly files (compilation changes) 2017-02-15 20:02:42 +11:00
Makefile powerpc/Makefile: Fix ld version check with 64-bit LE-only toolchain 2017-07-26 16:41:54 +10:00
Makefile.postlink powerpc/64: Tool to check head sections location sanity 2017-05-30 14:59:51 +10:00