6.7-stable review patch. If anyone has any objections, please let me know.
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From: Yu Kuai yukuai3@huawei.com
[ Upstream commit 503f9d43790fdd0c6e6ae2f4dd3f70b146ac4159 ]
The helper will be used for dm-raid456 later to detect the case that reshape can't make progress.
Cc: stable@vger.kernel.org # v6.7+ Signed-off-by: Yu Kuai yukuai3@huawei.com Signed-off-by: Xiao Ni xni@redhat.com Acked-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Song Liu song@kernel.org Link: https://lore.kernel.org/r/20240305072306.2562024-5-yukuai1@huaweicloud.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/md.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
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);