4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mikulas Patocka <mpatocka@xxxxxxxxxx>
commit 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 upstream.
This commit changes device mapper, so that it returns -ERESTARTSYS
instead of -EINTR when it is interrupted by a signal (so that the ioctl
can be restarted).
The manpage signal(7) says that the ioctl function should be restarted if
the signal was handled with SA_RESTART.
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2468,7 +2468,7 @@ static int dm_wait_for_completion(struct
break;
if (signal_pending_state(task_state, current)) {
- r = -EINTR;
+ r = -ERESTARTSYS;
break;
}
