diff options
| author | Dmitry Chagin <dchagin@FreeBSD.org> | 2021-07-29 09:55:59 +0000 |
|---|---|---|
| committer | Dmitry Chagin <dchagin@FreeBSD.org> | 2021-07-29 09:55:59 +0000 |
| commit | d90df8ac1324d731f8423b5501158ee870fbd5ba (patch) | |
| tree | 88557bcd9b3826848455d5613ea59d2bc6a79d77 /sys/compat/linux/linux_futex.c | |
| parent | 626cbd4648141929502b953111dc8a71d550c7e8 (diff) | |
Diffstat (limited to 'sys/compat/linux/linux_futex.c')
| -rw-r--r-- | sys/compat/linux/linux_futex.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_futex.c b/sys/compat/linux/linux_futex.c index 5f18c93b0988..edf059f74272 100644 --- a/sys/compat/linux/linux_futex.c +++ b/sys/compat/linux/linux_futex.c @@ -314,6 +314,18 @@ linux_futex(struct thread *td, struct linux_futex_args *args) return (linux_futex_lock_pi(td, true, args)); + /* + * Current implementation of FUTEX_WAIT_REQUEUE_PI and FUTEX_CMP_REQUEUE_PI + * can't be used anymore to implement conditional variables. + * A detailed explanation can be found here: + * + * https://sourceware.org/bugzilla/show_bug.cgi?id=13165 + * and here http://austingroupbugs.net/view.php?id=609 + * + * And since commit + * https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ed19993b5b0d05d62cc883571519a67dae481a14 + * glibc does not uses it. + */ case LINUX_FUTEX_WAIT_REQUEUE_PI: /* not yet implemented */ pem = pem_find(td->td_proc); |