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btrfs: convert to using bdi_setup_and_register() 

It's now a provided helper, so get rid of the internal setup
and btrfs atomic_t bdi enumerator.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2010-04-26 10:27:54 +02:00
parent 5129a469a9
commit e6d086d83c
1 changed files with 1 additions and 11 deletions
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12
fs/btrfs/disk-io.c
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@ -44,8 +44,6 @@ static struct extent_io_ops btree_extent_io_ops;
static void end_workqueue_fn(struct btrfs_work *work);
static void free_fs_root(struct btrfs_root *root);
static atomic_t btrfs_bdi_num = ATOMIC_INIT(0);
/*
* end_io_wq structs are used to do processing in task context when an IO is
* complete. This is used during reads to verify checksums, and it is used
@ -1375,19 +1373,11 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
{
int err;
bdi->name = "btrfs";
bdi->capabilities = BDI_CAP_MAP_COPY;
err = bdi_init(bdi);
err = bdi_setup_and_register(bdi, "btrfs", BDI_CAP_MAP_COPY);
if (err)
return err;
err = bdi_register(bdi, NULL, "btrfs-%d",
atomic_inc_return(&btrfs_bdi_num));
if (err) {
bdi_destroy(bdi);
return err;
}
bdi->ra_pages = default_backing_dev_info.ra_pages;
bdi->unplug_io_fn = btrfs_unplug_io_fn;
bdi->unplug_io_data = info;