diff options
| author | Andrew Morton <akpm@osdl.org> | 2006-11-02 22:07:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-11-03 12:27:58 -0800 |
| commit | 19c6b6ed3f597a583f58e3fc99256cc01ae8c394 (patch) | |
| tree | 3d466c426c1f91cfc1a0a883bda8faffbdac9626 /kernel/futex.c | |
| parent | f46c483357c2d87606bbefb511321e3efd4baae0 (diff) | |
| download | lwn-19c6b6ed3f597a583f58e3fc99256cc01ae8c394.tar.gz lwn-19c6b6ed3f597a583f58e3fc99256cc01ae8c394.zip | |
[PATCH] schedule removal of FUTEX_FD
Apparently FUTEX_FD is unfixably racy and nothing uses it (or if it does, it
shouldn't).
Add a warning printk, give any remaining users six months to migrate off it.
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/futex.c')
| -rw-r--r-- | kernel/futex.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index b364e0026191..93ef30ba209f 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1507,6 +1507,13 @@ static int futex_fd(u32 __user *uaddr, int signal) struct futex_q *q; struct file *filp; int ret, err; + static unsigned long printk_interval; + + if (printk_timed_ratelimit(&printk_interval, 60 * 60 * 1000)) { + printk(KERN_WARNING "Process `%s' used FUTEX_FD, which " + "will be removed from the kernel in June 2007\n", + current->comm); + } ret = -EINVAL; if (!valid_signal(signal)) |