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Replace __lll_add and __lll_test_and_set calls with atomic_exchange_and_add and atomic_exchange call respectively.

This commit is contained in:
Ulrich Drepper 2003-03-20 10:23:47 +00:00
parent f79466a8e9
commit 7793bf7fd7
1 changed files with 3 additions and 3 deletions
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6
nptl/sysdeps/unix/sysv/linux/lowlevellock.c
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@ -30,7 +30,7 @@ __lll_lock_wait (int *futex, int val)
do do
{ {
lll_futex_wait (futex, val + 1); lll_futex_wait (futex, val + 1);
val = __lll_add (futex, 1); val = atomic_exchange_and_add (futex, 1);
} }
while (val != 0); while (val != 0);
*futex = 2; *futex = 2;
@ -70,7 +70,7 @@ __lll_timedlock_wait (int *futex, int val, const struct timespec *abstime)
if (lll_futex_timed_wait (futex, val + 1, &rt) == -ETIMEDOUT) if (lll_futex_timed_wait (futex, val + 1, &rt) == -ETIMEDOUT)
return ETIMEDOUT; return ETIMEDOUT;
} }
while ((val = __lll_add (futex, 1)) != 0); while ((val = atomic_exchange_and_add (futex, 1)) != 0);
*futex = 2; *futex = 2;
return 0; return 0;
@ -83,7 +83,7 @@ hidden_proto (__lll_timedlock_wait)
int int
lll_unlock_wake_cb (int *futex) lll_unlock_wake_cb (int *futex)
{ {
int val = __lll_test_and_set (futex, 0); int val = atomic_exchange (futex, 0);
if (__builtin_expect (val > 1, 0)) if (__builtin_expect (val > 1, 0))
lll_futex_wake (futex, 1); lll_futex_wake (futex, 1);