refs/heads/ping/test - pub/scm/linux/kernel/git/rostedt/linux-trace

commit: 29e3d21fb7f16fd176d37ff3cea6783a73aae4ed
[log]
author: Steven Rostedt <rostedt@goodmis.org>
Thu Apr 09 22:27:59 2026 -0400
committer: Steven Rostedt (Google) <rostedt@goodmis.org>
Thu Apr 09 22:27:59 2026 -0400
tree: 59c5746ee91e85c9cf7f38c8c577e89b069a7c8f
parent: ae06023292ba651d5887fa73a315f792b021e8f1 [diff]

futex: Implement PING!

Add PI New Generation PI Futex that makes SCHED_OTHER pending owners have
their lock stolen by any task that tries to get it before it does.

In other words, this PI futex, SCHED_OTHER is not fair.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

include/uapi/linux/futex.h[diff]
kernel/futex/futex.h[diff]
kernel/futex/pi.c[diff]
kernel/futex/requeue.c[diff]
kernel/futex/syscalls.c[diff]
kernel/locking/rtmutex.c[diff]
kernel/locking/rtmutex_api.c[diff]
kernel/locking/rtmutex_common.h[diff]

8 files changed

tree: 59c5746ee91e85c9cf7f38c8c577e89b069a7c8f