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Get rid of lll_robust_trylock.

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This commit is contained in:
Roland McGrath
2014-07-10 10:57:57 -07:00
parent 5853672669
commit 887865fcfa
17 changed files with 25 additions and 139 deletions
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17
sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
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@@ -202,23 +202,6 @@
# endif
#endif
/* Set *futex to ID if it is 0, atomically. Returns the old value */
#define __lll_robust_trylock(futex, id) \
({ int __val; \
__asm __volatile ("1: lwarx %0,0,%2" MUTEX_HINT_ACQ "\n" \
" cmpwi 0,%0,0\n" \
" bne 2f\n" \
" stwcx. %3,0,%2\n" \
" bne- 1b\n" \
"2: " __lll_acq_instr \
: "=&r" (__val), "=m" (*futex) \
: "r" (futex), "r" (id), "m" (*futex) \
: "cr0", "memory"); \
__val; \
})
#define lll_robust_trylock(lock, id) __lll_robust_trylock (&(lock), id)
/* Set *futex to 1 if it is 0, atomically. Returns the old value */
#define __lll_trylock(futex) __lll_robust_trylock (futex, 1)