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authorFernando Luis [** ISO-8859-1 charset **] VázquezCao <fernando@oss.ntt.co.jp>2007-05-02 13:27:18 -0400
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 13:27:18 -0400
commit70ae77f497a57b3ef6b0987b6310327264517cb0 (patch)
treed9ef56b103a6b3d33dd7280b276c08ee5a6b4f49 /include/asm-x86_64/ipi.h
parentf5efb41e793ce587836b89b7191083b9a6185ed5 (diff)
[PATCH] x86-64: Use safe_apic_wait_icr_idle in __send_IPI_dest_field - x86_64
Use safe_apic_wait_icr_idle to check ICR idle bit if the vector is NMI_VECTOR to avoid potential hangups in the event of crash when kdump tries to stop the other CPUs. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include/asm-x86_64/ipi.h')
-rw-r--r--include/asm-x86_64/ipi.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-x86_64/ipi.h b/include/asm-x86_64/ipi.h
index 26961e671948..a7c75ea408a8 100644
--- a/include/asm-x86_64/ipi.h
+++ b/include/asm-x86_64/ipi.h
@@ -85,7 +85,10 @@ static inline void __send_IPI_dest_field(unsigned int mask, int vector, unsigned
85 /* 85 /*
86 * Wait for idle. 86 * Wait for idle.
87 */ 87 */
88 apic_wait_icr_idle(); 88 if (unlikely(vector == NMI_VECTOR))
89 safe_apic_wait_icr_idle();
90 else
91 apic_wait_icr_idle();
89 92
90 /* 93 /*
91 * prepare target chip field 94 * prepare target chip field