On Mon, Aug 19, 2024 at 12:28:52PM +0200, Mikulas Patocka wrote:
On Mon, 19 Aug 2024, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 4.19-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-4.19.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-smoky-refrain-8af1@gregkh' --subject-prefix 'PATCH 4.19.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") 5de719e3d01b ("dm mpath: fix missing call of path selector type->end_io") 645efa84f6c7 ("dm: add memory barrier before waitqueue_active") 3c94d83cb352 ("blk-mq: change blk_mq_queue_busy() to blk_mq_queue_inflight()") c4576aed8d85 ("dm: fix request-based dm's use of dm_wait_for_completion") b7934ba4147a ("dm: fix inflight IO check") 6f75723190d8 ("dm: remove the pending IO accounting") dbd3bbd291a0 ("dm rq: leverage blk_mq_queue_busy() to check for outstanding IO") 80a787ba3809 ("dm: dont rewrite dm_disk(md)->part0.in_flight") ae8799125d56 ("blk-mq: provide a helper to check if a queue is busy") 6a23e05c2fe3 ("dm: remove legacy request-based IO path")
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;Hi
Here I'm sending the updated patch for 4.19 and 5.4.
Now queued up, thanks
greg k-h