redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86_64/kernel/io_apic.c
View file

@ -149,11 +149,11 @@ static inline void io_apic_sync(unsigned int apic)
reg = io_apic_read(entry->apic, 0x10 + R + pin*2); \
reg ACTION; \
io_apic_modify(entry->apic, reg); \
FINAL; \
if (!entry->next) \
break; \
entry = irq_2_pin + entry->next; \
} \
FINAL; \
}
union entry_union {