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

* 'for-linus' of git://neil.brown.name/md:
  md: Update documentation for sync_min and sync_max entries
  md: Cleanup after raid45->raid0 takeover
  md: Fix dev_sectors on takeover from raid0 to raid4/5
  md/raid5: remove setting of ->queue_lock
This commit is contained in:
Linus Torvalds 2011-04-20 17:40:02 -07:00
parent 73aa86825f 28a8397852
commit d09571059b
3 changed files with 15 additions and 1 deletions
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10
Documentation/md.txt
View File

@ -552,6 +552,16 @@ also have
within the array where IO will be blocked. This is currently
only supported for raid4/5/6.
sync_min
sync_max
The two values, given as numbers of sectors, indicate a range
withing the array where 'check'/'repair' will operate. Must be
a multiple of chunk_size. When it reaches "sync_max" it will
pause, rather than complete.
You can use 'select' or 'poll' on "sync_completed" to wait for
that number to reach sync_max. Then you can either increase
"sync_max", or can write 'idle' to "sync_action".
Each active md device may also have attributes specific to the
personality module that manages it.

1
drivers/md/md.c
View File

@ -3170,6 +3170,7 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
mddev->layout = mddev->new_layout;
mddev->chunk_sectors = mddev->new_chunk_sectors;
mddev->delta_disks = 0;
mddev->degraded = 0;
if (mddev->pers->sync_request == NULL) {
/* this is now an array without redundancy, so
* it must always be in_sync

5
drivers/md/raid5.c
View File

@ -5151,7 +5151,6 @@ static int run(mddev_t *mddev)
mddev->queue->backing_dev_info.congested_data = mddev;
mddev->queue->backing_dev_info.congested_fn = raid5_congested;
mddev->queue->queue_lock = &conf->device_lock;
chunk_size = mddev->chunk_sectors << 9;
blk_queue_io_min(mddev->queue, chunk_size);
@ -5679,6 +5678,7 @@ static void raid5_quiesce(mddev_t *mddev, int state)
static void *raid45_takeover_raid0(mddev_t *mddev, int level)
{
struct raid0_private_data *raid0_priv = mddev->private;
unsigned long long sectors;
/* for raid0 takeover only one zone is supported */
if (raid0_priv->nr_strip_zones > 1) {
@ -5687,6 +5687,9 @@ static void *raid45_takeover_raid0(mddev_t *mddev, int level)
return ERR_PTR(-EINVAL);
}
sectors = raid0_priv->strip_zone[0].zone_end;
sector_div(sectors, raid0_priv->strip_zone[0].nb_dev);
mddev->dev_sectors = sectors;
mddev->new_level = level;
mddev->new_layout = ALGORITHM_PARITY_N;
mddev->new_chunk_sectors = mddev->chunk_sectors;