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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 13:43:55 +08:00
linux-next/arch/sparc
Yong Zhang bc68330095 SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()
ipi_call_lock/unlock() lock resp. unlock call_function.lock. This lock
protects only the call_function data structure itself, but it's
completely unrelated to cpu_online_mask. The mask to which the IPIs
are sent is calculated before call_function.lock is taken in
smp_call_function_many(), so the locking around set_cpu_online() is
pointless and can be removed.

Delay irq enable to after set_cpu_online().

[ tglx: Massaged changelog ]

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: ralf@linux-mips.org
Cc: sshtylyov@mvista.com
Cc: david.daney@cavium.com
Cc: nikunj@linux.vnet.ibm.com
Cc: paulmck@linux.vnet.ibm.com
Cc: axboe@kernel.dk
Cc: peterz@infradead.org
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/20120529082732.GA4250@zhy
Acked-by: "David S. Miller" <davem@davemloft.net>
Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-06-05 17:27:13 +02:00
..
boot sparc32: drop build time btfixup patching 2012-05-14 14:05:10 -07:00
configs perf: Remove PERF_COUNTERS config option 2012-04-26 13:52:52 +02:00
include/asm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
kernel SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() 2012-06-05 17:27:13 +02:00
lib sparc: use the new generic strnlen_user() function 2012-05-26 11:33:54 -07:00
math-emu sparc64: Fix several bugs in quad floating point emulation. 2012-05-25 00:31:56 -07:00
mm sparc32: srmmu_probe now knows about leon too 2012-05-27 23:52:51 -07:00
net net: filter: remove unused cpu_off in sparc JIT 2012-04-17 22:55:59 -04:00
oprofile sparc: using HZ needs an include of linux/param.h 2009-10-05 00:46:08 -07:00
prom sparc32: drop sun4c support 2012-05-11 19:27:44 -07:00
Kbuild Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2012-05-21 10:32:01 -07:00
Kconfig sparc: fix bad merge of sparc Kconfig 2012-05-27 21:16:14 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-21 19:43:57 -07:00