The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024081927-lapping-sedation-f06f@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
1e1fd567d32f ("dm suspend: return -ERESTARTSYS instead of -EINTR") 85067747cf98 ("dm: do not use waitqueue for request-based DM") 087615bf3acd ("dm mpath: pass IO start time to path selector")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka mpatocka@redhat.com Date: Tue, 13 Aug 2024 12:38:51 +0200 Subject: [PATCH] dm suspend: return -ERESTARTSYS instead of -EINTR
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
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 97fab2087df8..87bb90303435 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2737,7 +2737,7 @@ static int dm_wait_for_bios_completion(struct mapped_device *md, unsigned int ta break;
if (signal_pending_state(task_state, current)) { - r = -EINTR; + r = -ERESTARTSYS; break; }
@@ -2762,7 +2762,7 @@ static int dm_wait_for_completion(struct mapped_device *md, unsigned int task_st break;
if (signal_pending_state(task_state, current)) { - r = -EINTR; + r = -ERESTARTSYS; break; }