From: Andrew Morton <[email protected]>
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 <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Rusty Russell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
kernel/futex.c | 8 ++++++++
1 files changed, 8 insertions(+)
diff -puN kernel/futex.c~schedule-removal-of-futex_fd kernel/futex.c
--- a/kernel/futex.c~schedule-removal-of-futex_fd
+++ a/kernel/futex.c
@@ -1507,6 +1507,14 @@ static int futex_fd(u32 __user *uaddr, i
struct futex_q *q;
struct file *filp;
int ret, err;
+ static int warn_count;
+
+ if (warn_count < 10) {
+ printk(KERN_WARNING "Process `%s' used FUTEX_FD, which "
+ "will be removed from the kernel in June 2007\n",
+ current->comm);
+ warn_count++;
+ }
ret = -EINVAL;
if (!valid_signal(signal))
_
-
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