[PATCH] file: modify struct fown_struct to use a struct pid
File handles can be requested to send sigio and sigurg to processes. By
tracking the destination processes using struct pid instead of pid_t we make
the interface safe from all potential pid wrap around problems.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/futex.c b/kernel/futex.c
index 4b6770e..4aaf919 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1527,7 +1527,7 @@
filp->f_mapping = filp->f_dentry->d_inode->i_mapping;
if (signal) {
- err = f_setown(filp, current->pid, 1);
+ err = __f_setown(filp, task_pid(current), PIDTYPE_PID, 1);
if (err < 0) {
goto error;
}