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| author |   Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-10-30 13:29:40 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-10-31 11:09:10 -0300 |
| commit | 6b1472eb2ea16f99c4729f975ca25af980ce3894 (patch) | |
| tree | 14cd1db1ac52188e91e81ab3ef3a93735d1683be /nptl/pthread_mutex_trylock.c | |
| parent | Remove pause and nanosleep not cancel wrappers (diff) | |
| download | glibc-6b1472eb2ea16f99c4729f975ca25af980ce3894.tar.gz glibc-6b1472eb2ea16f99c4729f975ca25af980ce3894.tar.bz2 glibc-6b1472eb2ea16f99c4729f975ca25af980ce3894.zip | |
Refactor PI mutexes internal definitions
This patch adds the generic futex_lock_pi and futex_unlock_pi to wrap
around the syscall machinery required to issue the syscall calls. It
simplifies a bit the futex code required to implement PI mutexes.
No function changes, checked on x86_64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'nptl/pthread_mutex_trylock.c')
| -rw-r--r-- | nptl/pthread_mutex_trylock.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c index 87e87c013a..d24bb58a8b 100644 --- a/nptl/pthread_mutex_trylock.c +++ b/nptl/pthread_mutex_trylock.c @@ -21,6 +21,7 @@ #include <stdlib.h> #include "pthreadP.h" #include <lowlevellock.h> +#include <futex-internal.h> #ifndef lll_trylock_elision #define lll_trylock_elision(a,t) lll_trylock(a) @@ -346,11 +347,8 @@ __pthread_mutex_trylock (pthread_mutex_t *mutex) /* This mutex is now not recoverable. */ mutex->__data.__count = 0; - INTERNAL_SYSCALL_DECL (__err); - INTERNAL_SYSCALL (futex, __err, 4, &mutex->__data.__lock, - __lll_private_flag (FUTEX_UNLOCK_PI, - PTHREAD_ROBUST_MUTEX_PSHARED (mutex)), - 0, 0); + futex_unlock_pi ((unsigned int *) &mutex->__data.__lock, + PTHREAD_ROBUST_MUTEX_PSHARED (mutex)); /* To the kernel, this will be visible after the kernel has acquired the mutex in the syscall. */ |