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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 /sysdeps/nptl/lowlevellock-futex.h | |
| parent | fbb4a3143724ef3f044a4f05351fe041300ee382 (diff) | |
| download | glibc-6b1472eb2ea16f99c4729f975ca25af980ce3894.tar.gz | |
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 'sysdeps/nptl/lowlevellock-futex.h')
| -rw-r--r-- | sysdeps/nptl/lowlevellock-futex.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/nptl/lowlevellock-futex.h b/sysdeps/nptl/lowlevellock-futex.h index 392277e8a5..ff0fd4edc4 100644 --- a/sysdeps/nptl/lowlevellock-futex.h +++ b/sysdeps/nptl/lowlevellock-futex.h @@ -140,6 +140,15 @@ /* Priority Inheritance support. */ +#define lll_futex_timed_lock_pi(futexp, abstime, private) \ + lll_futex_syscall (4, futexp, \ + __lll_private_flag (FUTEX_LOCK_PI, private), \ + 0, abstime) + +#define lll_futex_timed_unlock_pi(futexp, private) \ + lll_futex_syscall (4, futexp, \ + __lll_private_flag (FUTEX_UNLOCK_PI, private), \ + 0, 0) /* Like lll_futex_wait (FUTEXP, VAL, PRIVATE) but with the expectation that lll_futex_cmp_requeue_pi (FUTEXP, _, _, MUTEX, _, PRIVATE) will |