sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().

[linux-2.6-omap-h63xx.git] / drivers / md / dm.c

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index ace998ce59f6af2616da4a24eca66de8b59c69ba..327de03a5bdfed7f11b0904abb72f3eac65fc92d 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -377,13 +377,14 @@ static void free_tio(struct mapped_device *md, struct dm_target_io *tio)
 static void start_io_acct(struct dm_io *io)
 {
        struct mapped_device *md = io->md;
+       int cpu;
 
        io->start_time = jiffies;
 
-       preempt_disable();
-       disk_round_stats(dm_disk(md));
-       preempt_enable();
-       dm_disk(md)->in_flight = atomic_inc_return(&md->pending);
+       cpu = part_stat_lock();
+       part_round_stats(cpu, &dm_disk(md)->part0);
+       part_stat_unlock();
+       dm_disk(md)->part0.in_flight = atomic_inc_return(&md->pending);
 }
 
 static int end_io_acct(struct dm_io *io)
@@ -391,15 +392,16 @@ static int end_io_acct(struct dm_io *io)
        struct mapped_device *md = io->md;
        struct bio *bio = io->bio;
        unsigned long duration = jiffies - io->start_time;
-       int pending;
+       int pending, cpu;
        int rw = bio_data_dir(bio);
 
-       preempt_disable();
-       disk_round_stats(dm_disk(md));
-       preempt_enable();
-       dm_disk(md)->in_flight = pending = atomic_dec_return(&md->pending);
+       cpu = part_stat_lock();
+       part_round_stats(cpu, &dm_disk(md)->part0);
+       part_stat_add(cpu, &dm_disk(md)->part0, ticks[rw], duration);
+       part_stat_unlock();
 
-       disk_stat_add(dm_disk(md), ticks[rw], duration);
+       dm_disk(md)->part0.in_flight = pending =
+               atomic_dec_return(&md->pending);
 
        return !pending;
 }
@@ -885,6 +887,7 @@ static int dm_request(struct request_queue *q, struct bio *bio)
        int r = -EIO;
        int rw = bio_data_dir(bio);
        struct mapped_device *md = q->queuedata;
+       int cpu;
 
        /*
         * There is no use in forwarding any barrier request since we can't
@@ -897,8 +900,10 @@ static int dm_request(struct request_queue *q, struct bio *bio)
 
        down_read(&md->io_lock);
 
-       disk_stat_inc(dm_disk(md), ios[rw]);
-       disk_stat_add(dm_disk(md), sectors[rw], bio_sectors(bio));
+       cpu = part_stat_lock();
+       part_stat_inc(cpu, &dm_disk(md)->part0, ios[rw]);
+       part_stat_add(cpu, &dm_disk(md)->part0, sectors[rw], bio_sectors(bio));
+       part_stat_unlock();
 
        /*
         * If we're suspended we have to queue
@@ -1146,7 +1151,7 @@ static void unlock_fs(struct mapped_device *md);
 
 static void free_dev(struct mapped_device *md)
 {
-       int minor = md->disk->first_minor;
+       int minor = MINOR(disk_devt(md->disk));
 
        if (md->suspended_bdev) {
                unlock_fs(md);
@@ -1182,7 +1187,7 @@ static void event_callback(void *context)
        list_splice_init(&md->uevent_list, &uevents);
        spin_unlock_irqrestore(&md->uevent_lock, flags);
 
-       dm_send_uevents(&uevents, &md->disk->dev.kobj);
+       dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
 
        atomic_inc(&md->event_nr);
        wake_up(&md->eventq);
@@ -1267,7 +1272,7 @@ static struct mapped_device *dm_find_md(dev_t dev)
 
        md = idr_find(&_minor_idr, minor);
        if (md && (md == MINOR_ALLOCED ||
-                  (dm_disk(md)->first_minor != minor) ||
+                  (MINOR(disk_devt(dm_disk(md))) != minor) ||
                   test_bit(DMF_FREEING, &md->flags))) {
                md = NULL;
                goto out;
@@ -1318,7 +1323,8 @@ void dm_put(struct mapped_device *md)
 
        if (atomic_dec_and_lock(&md->holders, &_minor_lock)) {
                map = dm_get_table(md);
-               idr_replace(&_minor_idr, MINOR_ALLOCED, dm_disk(md)->first_minor);
+               idr_replace(&_minor_idr, MINOR_ALLOCED,
+                           MINOR(disk_devt(dm_disk(md))));
                set_bit(DMF_FREEING, &md->flags);
                spin_unlock(&_minor_lock);
                if (!dm_suspended(md)) {
@@ -1638,7 +1644,7 @@ out:
  *---------------------------------------------------------------*/
 void dm_kobject_uevent(struct mapped_device *md)
 {
-       kobject_uevent(&md->disk->dev.kobj, KOBJ_CHANGE);
+       kobject_uevent(&disk_to_dev(md->disk)->kobj, KOBJ_CHANGE);
 }
 
 uint32_t dm_next_uevent_seq(struct mapped_device *md)