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| author | Dinakar Guniguntala <dino@in.ibm.com> | 2009-08-10 18:31:42 +0530 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-10 15:41:12 +0200 |
| commit | 4dc88029fd916b860ef063c40180aa604ce93494 (patch) | |
| tree | 0c81f4012d0dda7238a137465f12a3e9e685f7b0 | |
| parent | 2fc391112fb6f3424435a3aa2fda887497b5f807 (diff) | |
| download | lwn-4dc88029fd916b860ef063c40180aa604ce93494.tar.gz lwn-4dc88029fd916b860ef063c40180aa604ce93494.zip | |
futex: Fix compat_futex to be same as futex for REQUEUE_PI
Need to add the REQUEUE_PI checks to the compat_sys_futex API
as well to ensure 32 bit requeue's work fine on a 64 bit
system. Patch is against latest tip
Signed-off-by: Dinakar Guniguntala <dino@in.ibm.com>
Cc: Darren Hart <dvhltc@us.ibm.com>
LKML-Reference: <20090810130142.GA23619@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/futex_compat.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c index d607a5b9ee29..235716556bf1 100644 --- a/kernel/futex_compat.c +++ b/kernel/futex_compat.c @@ -180,7 +180,8 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, int cmd = op & FUTEX_CMD_MASK; if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI || - cmd == FUTEX_WAIT_BITSET)) { + cmd == FUTEX_WAIT_BITSET || + cmd == FUTEX_WAIT_REQUEUE_PI)) { if (get_compat_timespec(&ts, utime)) return -EFAULT; if (!timespec_valid(&ts)) @@ -191,7 +192,8 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, t = ktime_add_safe(ktime_get(), t); tp = &t; } - if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE) + if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE || + cmd == FUTEX_CMP_REQUEUE_PI || cmd == FUTEX_WAKE_OP) val2 = (int) (unsigned long) utime; return do_futex(uaddr, op, val, tp, uaddr2, val2, val3); |