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[PATCH] x86_64 irq: In __DO_ACTION perform the FINAL action for every entry.

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If we have an irq that comes from multiple io_apic pins the FINAL action
(which is io_apic_sync or nothing) needs to be called for every entry or
else if the two pins come from different io_apics we may not wait until
after the action happens on the io_apic.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Eric W. Biederman
2007-02-23 04:23:52 -07:00
committed by Linus Torvalds
parent 5ff5115efa
commit f45bcd7022
1 changed files with 1 additions and 1 deletions
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arch/x86_64/kernel/io_apic.c
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@@ -149,11 +149,11 @@ static inline void io_apic_sync(unsigned int apic)
reg = io_apic_read(entry->apic, 0x10 + R + pin*2); \ reg = io_apic_read(entry->apic, 0x10 + R + pin*2); \
reg ACTION; \ reg ACTION; \
io_apic_modify(entry->apic, reg); \ io_apic_modify(entry->apic, reg); \
FINAL; \
if (!entry->next) \ if (!entry->next) \
break; \ break; \
entry = irq_2_pin + entry->next; \ entry = irq_2_pin + entry->next; \
} \ } \
FINAL; \
} }
union entry_union { union entry_union {