4.19-stable review patch. If anyone has any objections, please let me know.
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From: Mikulas Patocka mpatocka@redhat.com
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@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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; }