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Merge branch 'for-linus' of git://neil.brown.name/md 

* 'for-linus' of git://neil.brown.name/md:
  md raid-1/10 Fix bio_rw bit manipulations again
  md: provide appropriate return value for spare_active functions.
  md: Notify sysfs when RAID1/5/10 disk is In_sync.
  Update recovery_offset even when external metadata is used.
This commit is contained in:
Linus Torvalds 2010-08-18 09:26:42 -07:00
parent 86ea51d4a2 2c7d46ec19
commit d9f5d41569
4 changed files with 48 additions and 47 deletions
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44
drivers/md/md.c
View File

@ -2136,16 +2136,6 @@ static void sync_sbs(mddev_t * mddev, int nospares)
* with the rest of the array)
*/
mdk_rdev_t *rdev;
/* First make sure individual recovery_offsets are correct */
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->raid_disk >= 0 &&
mddev->delta_disks >= 0 &&
!test_bit(In_sync, &rdev->flags) &&
mddev->curr_resync_completed > rdev->recovery_offset)
rdev->recovery_offset = mddev->curr_resync_completed;
}
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->sb_events == mddev->events ||
(nospares &&
@ -2167,12 +2157,27 @@ static void md_update_sb(mddev_t * mddev, int force_change)
int sync_req;
int nospares = 0;
mddev->utime = get_seconds();
if (mddev->external)
return;
repeat:
/* First make sure individual recovery_offsets are correct */
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->raid_disk >= 0 &&
mddev->delta_disks >= 0 &&
!test_bit(In_sync, &rdev->flags) &&
mddev->curr_resync_completed > rdev->recovery_offset)
rdev->recovery_offset = mddev->curr_resync_completed;
}
if (mddev->external || !mddev->persistent) {
clear_bit(MD_CHANGE_DEVS, &mddev->flags);
clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
wake_up(&mddev->sb_wait);
return;
}
spin_lock_irq(&mddev->write_lock);
mddev->utime = get_seconds();
set_bit(MD_CHANGE_PENDING, &mddev->flags);
if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
force_change = 1;
@ -2221,19 +2226,6 @@ static void md_update_sb(mddev_t * mddev, int force_change)
MD_BUG();
mddev->events --;
}
/*
* do not write anything to disk if using
* nonpersistent superblocks
*/
if (!mddev->persistent) {
if (!mddev->external)
clear_bit(MD_CHANGE_PENDING, &mddev->flags);
spin_unlock_irq(&mddev->write_lock);
wake_up(&mddev->sb_wait);
return;
}
sync_sbs(mddev, nospares);
spin_unlock_irq(&mddev->write_lock);

21
drivers/md/raid1.c
View File

@ -787,8 +787,8 @@ static int make_request(mddev_t *mddev, struct bio * bio)
struct bio_list bl;
struct page **behind_pages = NULL;
const int rw = bio_data_dir(bio);
const bool do_sync = (bio->bi_rw & REQ_SYNC);
bool do_barriers;
const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
unsigned long do_barriers;
mdk_rdev_t *blocked_rdev;
/*
@ -1120,6 +1120,8 @@ static int raid1_spare_active(mddev_t *mddev)
{
int i;
conf_t *conf = mddev->private;
int count = 0;
unsigned long flags;
/*
* Find all failed disks within the RAID1 configuration
@ -1131,15 +1133,16 @@ static int raid1_spare_active(mddev_t *mddev)
if (rdev
&& !test_bit(Faulty, &rdev->flags)
&& !test_and_set_bit(In_sync, &rdev->flags)) {
unsigned long flags;
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded--;
spin_unlock_irqrestore(&conf->device_lock, flags);
count++;
sysfs_notify_dirent(rdev->sysfs_state);
}
}
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded -= count;
spin_unlock_irqrestore(&conf->device_lock, flags);
print_conf(conf);
return 0;
return count;
}
@ -1640,7 +1643,7 @@ static void raid1d(mddev_t *mddev)
* We already have a nr_pending reference on these rdevs.
*/
int i;
const bool do_sync = (r1_bio->master_bio->bi_rw & REQ_SYNC);
const unsigned long do_sync = (r1_bio->master_bio->bi_rw & REQ_SYNC);
clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
clear_bit(R1BIO_Barrier, &r1_bio->state);
for (i=0; i < conf->raid_disks; i++)
@ -1696,7 +1699,7 @@ static void raid1d(mddev_t *mddev)
(unsigned long long)r1_bio->sector);
raid_end_bio_io(r1_bio);
} else {
const bool do_sync = r1_bio->master_bio->bi_rw & REQ_SYNC;
const unsigned long do_sync = r1_bio->master_bio->bi_rw & REQ_SYNC;
r1_bio->bios[r1_bio->read_disk] =
mddev->ro ? IO_BLOCKED : NULL;
r1_bio->read_disk = disk;

17
drivers/md/raid10.c
View File

@ -799,7 +799,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
int i;
int chunk_sects = conf->chunk_mask + 1;
const int rw = bio_data_dir(bio);
const bool do_sync = (bio->bi_rw & REQ_SYNC);
const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
struct bio_list bl;
unsigned long flags;
mdk_rdev_t *blocked_rdev;
@ -1116,6 +1116,8 @@ static int raid10_spare_active(mddev_t *mddev)
int i;
conf_t *conf = mddev->private;
mirror_info_t *tmp;
int count = 0;
unsigned long flags;
/*
* Find all non-in_sync disks within the RAID10 configuration
@ -1126,15 +1128,16 @@ static int raid10_spare_active(mddev_t *mddev)
if (tmp->rdev
&& !test_bit(Faulty, &tmp->rdev->flags)
&& !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
unsigned long flags;
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded--;
spin_unlock_irqrestore(&conf->device_lock, flags);
count++;
sysfs_notify_dirent(tmp->rdev->sysfs_state);
}
}
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded -= count;
spin_unlock_irqrestore(&conf->device_lock, flags);
print_conf(conf);
return 0;
return count;
}
@ -1734,7 +1737,7 @@ static void raid10d(mddev_t *mddev)
raid_end_bio_io(r10_bio);
bio_put(bio);
} else {
const bool do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
const unsigned long do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
bio_put(bio);
rdev = conf->mirrors[mirror].rdev;
if (printk_ratelimit())

13
drivers/md/raid5.c
View File

@ -5330,6 +5330,8 @@ static int raid5_spare_active(mddev_t *mddev)
int i;
raid5_conf_t *conf = mddev->private;
struct disk_info *tmp;
int count = 0;
unsigned long flags;
for (i = 0; i < conf->raid_disks; i++) {
tmp = conf->disks + i;
@ -5337,14 +5339,15 @@ static int raid5_spare_active(mddev_t *mddev)
&& tmp->rdev->recovery_offset == MaxSector
&& !test_bit(Faulty, &tmp->rdev->flags)
&& !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
unsigned long flags;
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded--;
spin_unlock_irqrestore(&conf->device_lock, flags);
count++;
sysfs_notify_dirent(tmp->rdev->sysfs_state);
}
}
spin_lock_irqsave(&conf->device_lock, flags);
mddev->degraded -= count;
spin_unlock_irqrestore(&conf->device_lock, flags);
print_raid5_conf(conf);
return 0;
return count;
}
static int raid5_remove_disk(mddev_t *mddev, int number)