diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-table.c | 11 | ||||
| -rw-r--r-- | drivers/md/dm.c | 19 | ||||
| -rw-r--r-- | drivers/md/kcopyd.c | 11 | ||||
| -rw-r--r-- | drivers/md/md.c | 11 |
4 files changed, 28 insertions, 24 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 76610a6ac01c..8f56a54cf0ce 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -14,6 +14,7 @@ #include <linux/ctype.h> #include <linux/slab.h> #include <linux/interrupt.h> +#include <linux/mutex.h> #include <asm/atomic.h> #define MAX_DEPTH 16 @@ -770,14 +771,14 @@ int dm_table_complete(struct dm_table *t) return r; } -static DECLARE_MUTEX(_event_lock); +static DEFINE_MUTEX(_event_lock); void dm_table_event_callback(struct dm_table *t, void (*fn)(void *), void *context) { - down(&_event_lock); + mutex_lock(&_event_lock); t->event_fn = fn; t->event_context = context; - up(&_event_lock); + mutex_unlock(&_event_lock); } void dm_table_event(struct dm_table *t) @@ -788,10 +789,10 @@ void dm_table_event(struct dm_table *t) */ BUG_ON(in_interrupt()); - down(&_event_lock); + mutex_lock(&_event_lock); if (t->event_fn) t->event_fn(t->event_context); - up(&_event_lock); + mutex_unlock(&_event_lock); } sector_t dm_table_get_size(struct dm_table *t) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 973e63d530ae..4d710b7a133b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -10,6 +10,7 @@ #include <linux/init.h> #include <linux/module.h> +#include <linux/mutex.h> #include <linux/moduleparam.h> #include <linux/blkpg.h> #include <linux/bio.h> @@ -743,14 +744,14 @@ static int dm_any_congested(void *congested_data, int bdi_bits) /*----------------------------------------------------------------- * An IDR is used to keep track of allocated minor numbers. *---------------------------------------------------------------*/ -static DECLARE_MUTEX(_minor_lock); +static DEFINE_MUTEX(_minor_lock); static DEFINE_IDR(_minor_idr); static void free_minor(unsigned int minor) { - down(&_minor_lock); + mutex_lock(&_minor_lock); idr_remove(&_minor_idr, minor); - up(&_minor_lock); + mutex_unlock(&_minor_lock); } /* @@ -763,7 +764,7 @@ static int specific_minor(struct mapped_device *md, unsigned int minor) if (minor >= (1 << MINORBITS)) return -EINVAL; - down(&_minor_lock); + mutex_lock(&_minor_lock); if (idr_find(&_minor_idr, minor)) { r = -EBUSY; @@ -788,7 +789,7 @@ static int specific_minor(struct mapped_device *md, unsigned int minor) } out: - up(&_minor_lock); + mutex_unlock(&_minor_lock); return r; } @@ -797,7 +798,7 @@ static int next_free_minor(struct mapped_device *md, unsigned int *minor) int r; unsigned int m; - down(&_minor_lock); + mutex_lock(&_minor_lock); r = idr_pre_get(&_minor_idr, GFP_KERNEL); if (!r) { @@ -819,7 +820,7 @@ static int next_free_minor(struct mapped_device *md, unsigned int *minor) *minor = m; out: - up(&_minor_lock); + mutex_unlock(&_minor_lock); return r; } @@ -1014,13 +1015,13 @@ static struct mapped_device *dm_find_md(dev_t dev) if (MAJOR(dev) != _major || minor >= (1 << MINORBITS)) return NULL; - down(&_minor_lock); + mutex_lock(&_minor_lock); md = idr_find(&_minor_idr, minor); if (!md || (dm_disk(md)->first_minor != minor)) md = NULL; - up(&_minor_lock); + mutex_unlock(&_minor_lock); return md; } diff --git a/drivers/md/kcopyd.c b/drivers/md/kcopyd.c index ed71f3f94620..72480a48d88b 100644 --- a/drivers/md/kcopyd.c +++ b/drivers/md/kcopyd.c @@ -22,6 +22,7 @@ #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/workqueue.h> +#include <linux/mutex.h> #include "kcopyd.h" @@ -581,21 +582,21 @@ int kcopyd_cancel(struct kcopyd_job *job, int block) /*----------------------------------------------------------------- * Unit setup *---------------------------------------------------------------*/ -static DECLARE_MUTEX(_client_lock); +static DEFINE_MUTEX(_client_lock); static LIST_HEAD(_clients); static void client_add(struct kcopyd_client *kc) { - down(&_client_lock); + mutex_lock(&_client_lock); list_add(&kc->list, &_clients); - up(&_client_lock); + mutex_unlock(&_client_lock); } static void client_del(struct kcopyd_client *kc) { - down(&_client_lock); + mutex_lock(&_client_lock); list_del(&kc->list); - up(&_client_lock); + mutex_unlock(&_client_lock); } static DEFINE_MUTEX(kcopyd_init_lock); diff --git a/drivers/md/md.c b/drivers/md/md.c index 147efcb1e8ca..c9c9c096ad80 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -43,6 +43,7 @@ #include <linux/buffer_head.h> /* for invalidate_bdev */ #include <linux/suspend.h> #include <linux/poll.h> +#include <linux/mutex.h> #include <linux/init.h> @@ -2500,7 +2501,7 @@ int mdp_major = 0; static struct kobject *md_probe(dev_t dev, int *part, void *data) { - static DECLARE_MUTEX(disks_sem); + static DEFINE_MUTEX(disks_mutex); mddev_t *mddev = mddev_find(dev); struct gendisk *disk; int partitioned = (MAJOR(dev) != MD_MAJOR); @@ -2510,15 +2511,15 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data) if (!mddev) return NULL; - down(&disks_sem); + mutex_lock(&disks_mutex); if (mddev->gendisk) { - up(&disks_sem); + mutex_unlock(&disks_mutex); mddev_put(mddev); return NULL; } disk = alloc_disk(1 << shift); if (!disk) { - up(&disks_sem); + mutex_unlock(&disks_mutex); mddev_put(mddev); return NULL; } @@ -2536,7 +2537,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data) disk->queue = mddev->queue; add_disk(disk); mddev->gendisk = disk; - up(&disks_sem); + mutex_unlock(&disks_mutex); mddev->kobj.parent = &disk->kobj; mddev->kobj.k_name = NULL; snprintf(mddev->kobj.name, KOBJ_NAME_LEN, "%s", "md"); |