Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f54f098612d7f86463b5fb4763d03533d634de73
Commit: f54f098612d7f86463b5fb4763d03533d634de73
Parent: c0f3358621dc746219d49a9dee1799704d3a32f8
Author: Andreas Schwab <[EMAIL PROTECTED]>
AuthorDate: Tue Jul 31 00:38:51 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Jul 31 15:39:40 2007 -0700
futex: pass nr_wake2 to futex_wake_op
The fourth argument of sys_futex is ignored when op == FUTEX_WAKE_OP,
but futex_wake_op expects it as its nr_wake2 parameter.
The only user of this operation in glibc is always passing 1, so this
bug had no consequences so far.
Signed-off-by: Andreas Schwab <[EMAIL PROTECTED]>
Cc: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Ulrich Drepper <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
kernel/futex.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/futex.c b/kernel/futex.c
index a124250..3415e9a 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2060,8 +2060,10 @@ asmlinkage long sys_futex(u32 __user *uaddr, int op, u32
val,
}
/*
* requeue parameter in 'utime' if cmd == FUTEX_REQUEUE.
+ * number of waiters to wake in 'utime' if cmd == FUTEX_WAKE_OP.
*/
- if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE)
+ if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE ||
+ cmd == FUTEX_WAKE_OP)
val2 = (u32) (unsigned long) utime;
return do_futex(uaddr, op, val, tp, uaddr2, val2, val3);
-
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