This is a note to let you know that I've just added the patch titled
md: add a new helper reshape_interrupted()
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
md-add-a-new-helper-reshape_interrupted.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d48afc48bc9dea92ba8b68c75c632b6ffe64cd3c
Author: Yu Kuai <yukuai3@xxxxxxxxxx>
Date: Tue Mar 5 15:23:01 2024 +0800
md: add a new helper reshape_interrupted()
[ Upstream commit 503f9d43790fdd0c6e6ae2f4dd3f70b146ac4159 ]
The helper will be used for dm-raid456 later to detect the case that
reshape can't make progress.
Cc: stable@xxxxxxxxxxxxxxx # v6.7+
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
Acked-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Song Liu <song@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240305072306.2562024-5-yukuai1@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/md/md.h b/drivers/md/md.h
index db0cb00e4c9ac..ea0fd76c17e75 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -571,6 +571,25 @@ static inline bool md_is_rdwr(struct mddev *mddev)
return (mddev->ro == MD_RDWR);
}
+static inline bool reshape_interrupted(struct mddev *mddev)
+{
+ /* reshape never start */
+ if (mddev->reshape_position == MaxSector)
+ return false;
+
+ /* interrupted */
+ if (!test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
+ return true;
+
+ /* running reshape will be interrupted soon. */
+ if (test_bit(MD_RECOVERY_WAIT, &mddev->recovery) ||
+ test_bit(MD_RECOVERY_INTR, &mddev->recovery) ||
+ test_bit(MD_RECOVERY_FROZEN, &mddev->recovery))
+ return true;
+
+ return false;
+}
+
static inline int __must_check mddev_lock(struct mddev *mddev)
{
return mutex_lock_interruptible(&mddev->reconfig_mutex);
