From 02c2de8cc835885bdff51a8bfd6c0b659b969f50 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Oct 2006 01:15:47 -0700 Subject: [PATCH] [PATCH] md: remove the working_disks and failed_disks from raid5 state data. They are not needed. conf->failed_disks is the same as mddev->degraded and conf->working_disks is conf->raid_disks - mddev->degraded. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid5.c | 20 ++++++++------------ include/linux/raid/raid5.h | 2 +- 2 files changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index d5a06b2584..1c8ab340a1 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -698,9 +698,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) if (!test_bit(Faulty, &rdev->flags)) { set_bit(MD_CHANGE_DEVS, &mddev->flags); if (test_bit(In_sync, &rdev->flags)) { - conf->working_disks--; mddev->degraded++; - conf->failed_disks++; clear_bit(In_sync, &rdev->flags); /* * if recovery was running, make sure it aborts. @@ -711,7 +709,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) printk (KERN_ALERT "raid5: Disk failure on %s, disabling device." " Operation continuing on %d devices\n", - bdevname(rdev->bdev,b), conf->working_disks); + bdevname(rdev->bdev,b), conf->raid_disks - mddev->degraded); } } @@ -3074,6 +3072,7 @@ static int run(mddev_t *mddev) mdk_rdev_t *rdev; struct disk_info *disk; struct list_head *tmp; + int working_disks = 0; if (mddev->level != 5 && mddev->level != 4 && mddev->level != 6) { printk(KERN_ERR "raid5: %s: raid level not set to 4/5/6 (%d)\n", @@ -3176,14 +3175,14 @@ static int run(mddev_t *mddev) printk(KERN_INFO "raid5: device %s operational as raid" " disk %d\n", bdevname(rdev->bdev,b), raid_disk); - conf->working_disks++; + working_disks++; } } /* * 0 for a fully functional array, 1 or 2 for a degraded array. */ - mddev->degraded = conf->failed_disks = conf->raid_disks - conf->working_disks; + mddev->degraded = conf->raid_disks - working_disks; conf->mddev = mddev; conf->chunk_size = mddev->chunk_size; conf->level = mddev->level; @@ -3218,7 +3217,7 @@ static int run(mddev_t *mddev) if (mddev->degraded > conf->max_degraded) { printk(KERN_ERR "raid5: not enough operational devices for %s" " (%d/%d failed)\n", - mdname(mddev), conf->failed_disks, conf->raid_disks); + mdname(mddev), mddev->degraded, conf->raid_disks); goto abort; } @@ -3375,7 +3374,7 @@ static void status (struct seq_file *seq, mddev_t *mddev) int i; seq_printf (seq, " level %d, %dk chunk, algorithm %d", mddev->level, mddev->chunk_size >> 10, mddev->layout); - seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->working_disks); + seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->raid_disks - mddev->degraded); for (i = 0; i < conf->raid_disks; i++) seq_printf (seq, "%s", conf->disks[i].rdev && @@ -3397,8 +3396,8 @@ static void print_raid5_conf (raid5_conf_t *conf) printk("(conf==NULL)\n"); return; } - printk(" --- rd:%d wd:%d fd:%d\n", conf->raid_disks, - conf->working_disks, conf->failed_disks); + printk(" --- rd:%d wd:%d\n", conf->raid_disks, + conf->raid_disks - conf->mddev->degraded); for (i = 0; i < conf->raid_disks; i++) { char b[BDEVNAME_SIZE]; @@ -3422,8 +3421,6 @@ static int raid5_spare_active(mddev_t *mddev) && !test_bit(Faulty, &tmp->rdev->flags) && !test_bit(In_sync, &tmp->rdev->flags)) { mddev->degraded--; - conf->failed_disks--; - conf->working_disks++; set_bit(In_sync, &tmp->rdev->flags); } } @@ -3593,7 +3590,6 @@ static int raid5_start_reshape(mddev_t *mddev) if (raid5_add_disk(mddev, rdev)) { char nm[20]; set_bit(In_sync, &rdev->flags); - conf->working_disks++; added_devices++; rdev->recovery_offset = 0; sprintf(nm, "rd%d", rdev->raid_disk); diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index f1e28952a8..f13299a155 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -214,7 +214,7 @@ struct raid5_private_data { struct disk_info *spare; int chunk_size, level, algorithm; int max_degraded; - int raid_disks, working_disks, failed_disks; + int raid_disks; int max_nr_stripes; /* used during an expand */ -- 2.39.5