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authorNeilBrown <neilb@suse.de>2010-04-01 15:55:30 +1100
committerNeilBrown <neilb@suse.de>2010-05-18 15:27:55 +1000
commitfafd7fb052182e087b5a3c6c408e4ac8c2b5fa14 (patch)
tree0071eab25a38b69a792fb25c3efffbd98609fc18 /drivers/md
parent21a52c6d05c15f862797736393915bfa8cd40ee9 (diff)
md: factor out init code for an mddev
This is a simple factorisation that makes mddev_find easier to read. Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c39
1 files changed, 22 insertions, 17 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2e05b0c2515d..d3579fc9efed 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -416,6 +416,27 @@ static void mddev_put(mddev_t *mddev)
spin_unlock(&all_mddevs_lock);
}
+static void mddev_init(mddev_t *mddev)
+{
+ mutex_init(&mddev->open_mutex);
+ mutex_init(&mddev->reconfig_mutex);
+ mutex_init(&mddev->bitmap_info.mutex);
+ INIT_LIST_HEAD(&mddev->disks);
+ INIT_LIST_HEAD(&mddev->all_mddevs);
+ init_timer(&mddev->safemode_timer);
+ atomic_set(&mddev->active, 1);
+ atomic_set(&mddev->openers, 0);
+ atomic_set(&mddev->active_io, 0);
+ spin_lock_init(&mddev->write_lock);
+ atomic_set(&mddev->flush_pending, 0);
+ init_waitqueue_head(&mddev->sb_wait);
+ init_waitqueue_head(&mddev->recovery_wait);
+ mddev->reshape_position = MaxSector;
+ mddev->resync_min = 0;
+ mddev->resync_max = MaxSector;
+ mddev->level = LEVEL_NONE;
+}
+
static mddev_t * mddev_find(dev_t unit)
{
mddev_t *mddev, *new = NULL;
@@ -482,23 +503,7 @@ static mddev_t * mddev_find(dev_t unit)
else
new->md_minor = MINOR(unit) >> MdpMinorShift;
- mutex_init(&new->open_mutex);
- mutex_init(&new->reconfig_mutex);
- mutex_init(&new->bitmap_info.mutex);
- INIT_LIST_HEAD(&new->disks);
- INIT_LIST_HEAD(&new->all_mddevs);
- init_timer(&new->safemode_timer);
- atomic_set(&new->active, 1);
- atomic_set(&new->openers, 0);
- atomic_set(&new->active_io, 0);
- spin_lock_init(&new->write_lock);
- atomic_set(&new->flush_pending, 0);
- init_waitqueue_head(&new->sb_wait);
- init_waitqueue_head(&new->recovery_wait);
- new->reshape_position = MaxSector;
- new->resync_min = 0;
- new->resync_max = MaxSector;
- new->level = LEVEL_NONE;
+ mddev_init(new);
goto retry;
}