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(AIO_MISC_WAIT): Work around gcc being to clever and reloading the futex value where it shouldn't.

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This commit is contained in:
Ulrich Drepper 2006-01-08 01:51:18 +00:00
parent ca3d773e19
commit 04454efba2
1 changed files with 3 additions and 2 deletions
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5
nptl/sysdeps/pthread/aio_misc.h
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@ -35,6 +35,7 @@
#define AIO_MISC_WAIT(result, futex, timeout, cancel) \
do { \
volatile int *futexaddr = &futex; \
int oldval = futex; \
\
if (oldval != 0) \
@ -48,11 +49,11 @@
int status; \
do \
{ \
status = lll_futex_timed_wait (&futex, oldval, timeout); \
status = lll_futex_timed_wait (futexaddr, oldval, timeout); \
if (status != -EWOULDBLOCK) \
break; \
\
oldval = futex; \
oldval = *futexaddr; \
} \
while (oldval != 0); \
\