| commit | bab5bc9e857638880facef76e4b4c3fa807f8c73 | |
| author | Darren Hart <dvhltc@us.ibm.com> | |
| Wed, 8 Apr 2009 06:23:50 +0000 (7 23:23 -0700) | ||
| committer | Thomas Gleixner <tglx@linutronix.de> | |
| Wed, 8 Apr 2009 10:58:20 +0000 (8 12:58 +0200) | ||
| tree | 8129a3fc18f770021bfe202900ecc2cb144d18c7 | treesnapshot (tar.gz zip) |
| parent | 52400ba946759af28442dee6265c5c0180ac7122 | commitdiff |
futex: fixup unlocked requeue pi case
Thomas's testing caught a problem when the requeue target futex is
unowned and multiple tasks are requeued to it. This patch ensures
the FUTEX_WAITERS bit gets set if futex_requeue() will requeue one
or more tasks in addition to the one acquiring the lock.
Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas's testing caught a problem when the requeue target futex is
unowned and multiple tasks are requeued to it. This patch ensures
the FUTEX_WAITERS bit gets set if futex_requeue() will requeue one
or more tasks in addition to the one acquiring the lock.
Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| kernel/futex.c | diffblobblamehistory |