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path: root/drivers/md/dm-delay.c
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Diffstat (limited to 'drivers/md/dm-delay.c')
-rw-r--r--drivers/md/dm-delay.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 52c7cf9e580..6928c136d3c 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -20,7 +20,7 @@
struct delay_c {
struct timer_list delay_timer;
- struct semaphore timer_lock;
+ struct mutex timer_lock;
struct work_struct flush_expired_bios;
struct list_head delayed_bios;
atomic_t may_delay;
@@ -37,7 +37,7 @@ struct delay_c {
unsigned writes;
};
-struct delay_info {
+struct dm_delay_info {
struct delay_c *context;
struct list_head list;
struct bio *bio;
@@ -58,12 +58,12 @@ static void handle_delayed_timer(unsigned long data)
static void queue_timeout(struct delay_c *dc, unsigned long expires)
{
- down(&dc->timer_lock);
+ mutex_lock(&dc->timer_lock);
if (!timer_pending(&dc->delay_timer) || expires < dc->delay_timer.expires)
mod_timer(&dc->delay_timer, expires);
- up(&dc->timer_lock);
+ mutex_unlock(&dc->timer_lock);
}
static void flush_bios(struct bio *bio)
@@ -80,7 +80,7 @@ static void flush_bios(struct bio *bio)
static struct bio *flush_delayed_bios(struct delay_c *dc, int flush_all)
{
- struct delay_info *delayed, *next;
+ struct dm_delay_info *delayed, *next;
unsigned long next_expires = 0;
int start_timer = 0;
BIO_LIST(flush_bios);
@@ -193,13 +193,11 @@ out:
goto bad;
}
- init_timer(&dc->delay_timer);
- dc->delay_timer.function = handle_delayed_timer;
- dc->delay_timer.data = (unsigned long)dc;
+ setup_timer(&dc->delay_timer, handle_delayed_timer, (unsigned long)dc);
INIT_WORK(&dc->flush_expired_bios, flush_expired_bios);
INIT_LIST_HEAD(&dc->delayed_bios);
- init_MUTEX(&dc->timer_lock);
+ mutex_init(&dc->timer_lock);
atomic_set(&dc->may_delay, 1);
ti->private = dc;
@@ -227,7 +225,7 @@ static void delay_dtr(struct dm_target *ti)
static int delay_bio(struct delay_c *dc, int delay, struct bio *bio)
{
- struct delay_info *delayed;
+ struct dm_delay_info *delayed;
unsigned long expires = 0;
if (!delay || !atomic_read(&dc->may_delay))
@@ -338,10 +336,7 @@ static int __init dm_delay_init(void)
goto bad_queue;
}
- delayed_cache = kmem_cache_create("dm-delay",
- sizeof(struct delay_info),
- __alignof__(struct delay_info),
- 0, NULL, NULL);
+ delayed_cache = KMEM_CACHE(dm_delay_info, 0);
if (!delayed_cache) {
DMERR("Couldn't create delayed bio cache.");
goto bad_memcache;