From d9197723e2b2f50723a67652d23f4760e9a1a660 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 1 Jun 2007 00:46:41 -0700 Subject: [PATCH] fix compat futex code for private futexes When the private futex support was added the compat code wasn't changed. The result is that code using compat code which fail, e.g., because the timeout values are not correctly passed. The following patch should fix that. Signed-off-by: Ulrich Drepper Cc: Eric Dumazet Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/futex_compat.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c index 338a9b489fbc3..27478948b3189 100644 --- a/kernel/futex_compat.c +++ b/kernel/futex_compat.c @@ -144,20 +144,21 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, struct timespec ts; ktime_t t, *tp = NULL; int val2 = 0; + int cmd = op & FUTEX_CMD_MASK; - if (utime && (op == FUTEX_WAIT || op == FUTEX_LOCK_PI)) { + if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI)) { if (get_compat_timespec(&ts, utime)) return -EFAULT; if (!timespec_valid(&ts)) return -EINVAL; t = timespec_to_ktime(ts); - if (op == FUTEX_WAIT) + if (cmd == FUTEX_WAIT) t = ktime_add(ktime_get(), t); tp = &t; } - if (op == FUTEX_REQUEUE || op == FUTEX_CMP_REQUEUE - || op == FUTEX_CMP_REQUEUE_PI) + if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE + || cmd == FUTEX_CMP_REQUEUE_PI) val2 = (int) (unsigned long) utime; return do_futex(uaddr, op, val, tp, uaddr2, val2, val3); -- 2.39.5