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btrfs: move tree block wait and write helpers to tree-log 

The wrapper names better describe what's happening so they're not
deleted though they're trivial, but at least moved closer to their place
of use.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-03-21 20:21:05 +01:00
parent d4eb671a08
commit 247462a5ac
3 changed files with 11 additions and 15 deletions
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13
fs/btrfs/disk-io.c
View File

@ -1078,19 +1078,6 @@ struct extent_buffer *btrfs_find_create_tree_block(
return alloc_extent_buffer(fs_info, bytenr);
}
int btrfs_write_tree_block(struct extent_buffer *buf)
{
return filemap_fdatawrite_range(buf->pages[0]->mapping, buf->start,
buf->start + buf->len - 1);
}
void btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
{
filemap_fdatawait_range(buf->pages[0]->mapping,
buf->start, buf->start + buf->len - 1);
}
/*
* Read tree block at logical address @bytenr and do variant basic but critical
* verification.

2
fs/btrfs/disk-io.h
View File

@ -126,8 +126,6 @@ blk_status_t btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
extent_submit_bio_start_t *submit_bio_start);
blk_status_t btrfs_submit_bio_done(void *private_data, struct bio *bio,
int mirror_num);
int btrfs_write_tree_block(struct extent_buffer *buf);
void btrfs_wait_tree_block_writeback(struct extent_buffer *buf);
int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
int btrfs_add_log_tree(struct btrfs_trans_handle *trans,

11
fs/btrfs/tree-log.c
View File

@ -225,6 +225,17 @@ void btrfs_end_log_trans(struct btrfs_root *root)
}
}
static int btrfs_write_tree_block(struct extent_buffer *buf)
{
return filemap_fdatawrite_range(buf->pages[0]->mapping, buf->start,
buf->start + buf->len - 1);
}
static void btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
{
filemap_fdatawait_range(buf->pages[0]->mapping,
buf->start, buf->start + buf->len - 1);
}
/*
* the walk control struct is used to pass state down the chain when