diff options
Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
| -rw-r--r-- | drivers/block/aoe/aoeblk.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 035cefe4045a..541e18879965 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -4,16 +4,20 @@ * block device routines */ +#include <linux/kernel.h> #include <linux/hdreg.h> #include <linux/blkdev.h> #include <linux/backing-dev.h> #include <linux/fs.h> #include <linux/ioctl.h> #include <linux/slab.h> +#include <linux/ratelimit.h> #include <linux/genhd.h> #include <linux/netdevice.h> +#include <linux/mutex.h> #include "aoe.h" +static DEFINE_MUTEX(aoeblk_mutex); static struct kmem_cache *buf_pool_cache; static ssize_t aoedisk_show_state(struct device *dev, @@ -124,13 +128,16 @@ aoeblk_open(struct block_device *bdev, fmode_t mode) struct aoedev *d = bdev->bd_disk->private_data; ulong flags; + mutex_lock(&aoeblk_mutex); spin_lock_irqsave(&d->lock, flags); if (d->flags & DEVFL_UP) { d->nopen++; spin_unlock_irqrestore(&d->lock, flags); + mutex_unlock(&aoeblk_mutex); return 0; } spin_unlock_irqrestore(&d->lock, flags); + mutex_unlock(&aoeblk_mutex); return -ENODEV; } @@ -173,7 +180,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) BUG(); bio_endio(bio, -ENXIO); return 0; - } else if (bio_rw_flagged(bio, BIO_RW_BARRIER)) { + } else if (bio->bi_rw & REQ_HARDBARRIER) { bio_endio(bio, -EOPNOTSUPP); return 0; } else if (bio->bi_io_vec == NULL) { @@ -202,7 +209,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) spin_lock_irqsave(&d->lock, flags); if ((d->flags & DEVFL_UP) == 0) { - printk(KERN_INFO "aoe: device %ld.%d is not up\n", + pr_info_ratelimited("aoe: device %ld.%d is not up\n", d->aoemajor, d->aoeminor); spin_unlock_irqrestore(&d->lock, flags); mempool_free(buf, d->bufpool); |