From d249e541887a966df37544f7c4d301cdee0f0e27 Mon Sep 17 00:00:00 2001 From: Yu Kuai Date: Tue, 11 Jun 2024 21:22:48 +0800 Subject: md: replace last_sync_action with new enum type The only difference is that "none" is removed and initial last_sync_action will be idle. On the one hand, this value is introduced by commit c4a395514516 ("MD: Remember the last sync operation that was performed"), and the usage described in commit message is not affected. On the other hand, last_sync_action is not used in mdadm or mdmon, and none of the tests that I can find. Signed-off-by: Yu Kuai Signed-off-by: Song Liu Link: https://lore.kernel.org/r/20240611132251.1967786-10-yukuai1@huaweicloud.com --- drivers/md/dm-raid.c | 2 +- drivers/md/md.c | 7 ++++--- drivers/md/md.h | 9 ++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index abe88d1e6735..052c00c1eb15 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3542,7 +3542,7 @@ static void raid_status(struct dm_target *ti, status_type_t type, recovery = rs->md.recovery; state = decipher_sync_action(mddev, recovery); progress = rs_get_progress(rs, recovery, state, resync_max_sectors); - resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ? + resync_mismatches = mddev->last_sync_action == ACTION_CHECK ? atomic64_read(&mddev->resync_mismatches) : 0; /* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */ diff --git a/drivers/md/md.c b/drivers/md/md.c index 5fa7b5f4bc6d..ab492e885867 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -768,7 +768,7 @@ int mddev_init(struct mddev *mddev) init_waitqueue_head(&mddev->recovery_wait); mddev->reshape_position = MaxSector; mddev->reshape_backwards = 0; - mddev->last_sync_action = "none"; + mddev->last_sync_action = ACTION_IDLE; mddev->resync_min = 0; mddev->resync_max = MaxSector; mddev->level = LEVEL_NONE; @@ -5149,7 +5149,8 @@ __ATTR_PREALLOC(sync_action, S_IRUGO|S_IWUSR, action_show, action_store); static ssize_t last_sync_action_show(struct mddev *mddev, char *page) { - return sprintf(page, "%s\n", mddev->last_sync_action); + return sprintf(page, "%s\n", + md_sync_action_name(mddev->last_sync_action)); } static struct md_sysfs_entry md_last_scan_mode = __ATTR_RO(last_sync_action); @@ -8963,7 +8964,7 @@ void md_do_sync(struct md_thread *thread) action = md_sync_action(mddev); desc = md_sync_action_name(action); - mddev->last_sync_action = desc; + mddev->last_sync_action = action; /* * Before starting a resync we must have set curr_resync to diff --git a/drivers/md/md.h b/drivers/md/md.h index ee06cb076f8c..41781e41d8ff 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -426,13 +426,12 @@ struct mddev { struct md_thread __rcu *thread; /* management thread */ struct md_thread __rcu *sync_thread; /* doing resync or reconstruct */ - /* 'last_sync_action' is initialized to "none". It is set when a - * sync operation (i.e "data-check", "requested-resync", "resync", - * "recovery", or "reshape") is started. It holds this value even + /* + * Set when a sync operation is started. It holds this value even * when the sync thread is "frozen" (interrupted) or "idle" (stopped - * or finished). It is overwritten when a new sync operation is begun. + * or finished). It is overwritten when a new sync operation is begun. */ - const char *last_sync_action; + enum sync_action last_sync_action; sector_t curr_resync; /* last block scheduled */ /* As resync requests can complete out of order, we cannot easily track * how much resync has been completed. So we occasionally pause until -- cgit v1.2.3