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powerpc: Fix adapt_count update in __lll_unlock_elision

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Commit e9a96ea1ac had an error that
prevents adapt_count from being updated in __lll_unlock_elision.
This commit is contained in:
Tulio Magno Quites Machado Filho
2017-01-20 16:32:29 -02:00
parent 6d523660e9
commit eb1321f291
2 changed files with 6 additions and 1 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2017-01-20 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
(__lll_unlock_elision): Fix adapt_count decrement.
2017-01-14 Martin Galvan <martingalvan@sourceware.org> 2017-01-14 Martin Galvan <martingalvan@sourceware.org>
* README.pretty-printers (Known issues): Warn about printers not * README.pretty-printers (Known issues): Warn about printers not

2
sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
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@ -35,7 +35,7 @@ __lll_unlock_elision (int *lock, short *adapt_count, int pshared)
the mutex destruction requirements. */ the mutex destruction requirements. */
short __tmp = atomic_load_relaxed (adapt_count); short __tmp = atomic_load_relaxed (adapt_count);
if (__tmp > 0) if (__tmp > 0)
atomic_store_relaxed (adapt_count, __tmp--); atomic_store_relaxed (adapt_count, __tmp - 1);
lll_unlock ((*lock), pshared); lll_unlock ((*lock), pshared);
} }