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authorWill Deacon <will.deacon@arm.com>2013-04-07 21:36:11 +1200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-07 12:59:30 -0700
commite20800fd5cec2a75639a32e956b1cdc023cb87ce (patch)
treed721b26e6ec84eec9a9e6330f7602a10e016903d /arch/alpha/include
parentcd8d2331756751b6aeb855a3c9cb0a92fbd9c725 (diff)
downloadlinux-stericsson-e20800fd5cec2a75639a32e956b1cdc023cb87ce.tar.gz
alpha: irq: run all handlers with interrupts disabled
Linux has expected that interrupt handlers are executed with local interrupts disabled for a while now, so ensure that this is the case on Alpha even for non-device interrupts such as IPIs. Without this patch, secondary boot results in the following backtrace: warning: at kernel/softirq.c:139 __local_bh_enable+0xb8/0xd0() trace: __local_bh_enable+0xb8/0xd0 irq_enter+0x74/0xa0 scheduler_ipi+0x50/0x100 handle_ipi+0x84/0x260 do_entint+0x1ac/0x2e0 irq_exit+0x60/0xa0 handle_irq+0x98/0x100 do_entint+0x2c8/0x2e0 ret_from_sys_call+0x0/0x10 load_balance+0x3e4/0x870 cpu_idle+0x24/0x80 rcu_eqs_enter_common.isra.38+0x0/0x120 cpu_idle+0x40/0x80 rest_init+0xc0/0xe0 _stext+0x1c/0x20 A similar dump occurs if you try to reboot using magic-sysrq. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Reviewed-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Michael Cree <mcree@orcon.net.nz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/include')
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