在 2025/8/14 9:57, Zheng Qixing 写道:
From: Zheng Qixing <zhengqixing@xxxxxxxxxx>
Add a helper for checking if an rdev needs recovery.
Signed-off-by: Zheng Qixing <zhengqixing@xxxxxxxxxx>
Reviewed-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
Reviewed-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/md.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index ac85ec73a409..4663e172864e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4835,6 +4835,14 @@ metadata_store(struct mddev *mddev, const char *buf, size_t len)
static struct md_sysfs_entry md_metadata =
__ATTR_PREALLOC(metadata_version, S_IRUGO|S_IWUSR, metadata_show, metadata_store);
+static bool rdev_needs_recovery(struct md_rdev *rdev, sector_t sectors)
+{
+ return !test_bit(Journal, &rdev->flags) &&
+ !test_bit(Faulty, &rdev->flags) &&
+ !test_bit(In_sync, &rdev->flags) &&
+ rdev->recovery_offset < sectors;
+}
+
Every caller is already checking 'rdev->raid_disk >= 0'. Should we move it
into rdev_needs_recovery()?
enum sync_action md_sync_action(struct mddev *mddev)
{
unsigned long recovery = mddev->recovery;
@@ -8969,10 +8977,7 @@ static sector_t md_sync_position(struct mddev *mddev, enum sync_action action)
rcu_read_lock();
rdev_for_each_rcu(rdev, mddev)
if (rdev->raid_disk >= 0 &&
- !test_bit(Journal, &rdev->flags) &&
- !test_bit(Faulty, &rdev->flags) &&
- !test_bit(In_sync, &rdev->flags) &&
- rdev->recovery_offset < start)
+ rdev_needs_recovery(rdev, start))
start = rdev->recovery_offset;
rcu_read_unlock();
@@ -9333,10 +9338,7 @@ void md_do_sync(struct md_thread *thread)
rdev_for_each_rcu(rdev, mddev)
if (rdev->raid_disk >= 0 &&
mddev->delta_disks >= 0 &&
- !test_bit(Journal, &rdev->flags) &&
- !test_bit(Faulty, &rdev->flags) &&
- !test_bit(In_sync, &rdev->flags) &&
- rdev->recovery_offset < mddev->curr_resync)
+ rdev_needs_recovery(rdev, mddev->curr_resync))
rdev->recovery_offset = mddev->curr_resync;
rcu_read_unlock();
}
--
Thanks,
Nan
