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(parent: a2382be) | patch
x86, ioapic: Fix non atomic allocation with interrupts disabled
authorSuresh Siddha <suresh.b.siddha@intel.com>
Tue, 17 Mar 2009 00:05:03 +0000 (17:05 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Tue, 17 Mar 2009 22:45:29 +0000 (15:45 -0700)
commit1cc6bc33b1932ed26da13ef83f58c7d25f825f30
tree7e5918518c5f22f6121ff885283bef5397a0a842tree | snapshot
parenta2382be9d35b68bd2b19e789385bbc103de60c2fcommit | diff
x86, ioapic: Fix non atomic allocation with interrupts disabled

Impact: fix possible race

save_mask_IO_APIC_setup() was using non atomic memory allocation while getting
called with interrupts disabled. Fix this by splitting this into two different
function. Allocation part save_IO_APIC_setup() now happens before
disabling interrupts.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/include/asm/io_apic.h diff | blob | history
arch/x86/kernel/apic/apic.c diff | blob | history
arch/x86/kernel/apic/io_apic.c diff | blob | history
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