diff options
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 11d0ad30e203..feca04197d02 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -27,6 +27,7 @@ #include <linux/kthread.h> #include <linux/freezer.h> #include <linux/crc32c.h> +#include <linux/slab.h> #include "compat.h" #include "ctree.h" #include "disk-io.h" @@ -43,8 +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 @@ -1374,19 +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; @@ -1634,7 +1625,6 @@ struct btrfs_root *open_ctree(struct super_block *sb, atomic_set(&fs_info->async_submit_draining, 0); atomic_set(&fs_info->nr_async_bios, 0); fs_info->sb = sb; - fs_info->max_extent = (u64)-1; fs_info->max_inline = 8192 * 1024; fs_info->metadata_ratio = 0; @@ -1922,7 +1912,11 @@ struct btrfs_root *open_ctree(struct super_block *sb, csum_root->track_dirty = 1; - btrfs_read_block_groups(extent_root); + ret = btrfs_read_block_groups(extent_root); + if (ret) { + printk(KERN_ERR "Failed to read block groups: %d\n", ret); + goto fail_block_groups; + } fs_info->generation = generation; fs_info->last_trans_committed = generation; @@ -1932,7 +1926,7 @@ struct btrfs_root *open_ctree(struct super_block *sb, fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root, "btrfs-cleaner"); if (IS_ERR(fs_info->cleaner_kthread)) - goto fail_csum_root; + goto fail_block_groups; fs_info->transaction_kthread = kthread_run(transaction_kthread, tree_root, @@ -2020,7 +2014,8 @@ fail_cleaner: filemap_write_and_wait(fs_info->btree_inode->i_mapping); invalidate_inode_pages2(fs_info->btree_inode->i_mapping); -fail_csum_root: +fail_block_groups: + btrfs_free_block_groups(fs_info); free_extent_buffer(csum_root->node); free_extent_buffer(csum_root->commit_root); fail_dev_root: |