diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 5d3f813e13a..2c18a4eb4d5 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3347,52 +3347,6 @@ int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid) return btree_read_extent_buffer_pages(root, buf, 0, parent_transid); } -int btree_lock_page_hook(struct page *page, void *data, - void (*flush_fn)(void *)) -{ - struct inode *inode = page->mapping->host; - struct btrfs_root *root = BTRFS_I(inode)->root; - struct extent_buffer *eb; - - /* - * We culled this eb but the page is still hanging out on the mapping, - * carry on. - */ - if (!PagePrivate(page)) - goto out; - - eb = (struct extent_buffer *)page->private; - if (!eb) { - WARN_ON(1); - goto out; - } - if (page != eb->pages[0]) - goto out; - - if (!btrfs_try_tree_write_lock(eb)) { - flush_fn(data); - btrfs_tree_lock(eb); - } - btrfs_set_header_flag(eb, BTRFS_HEADER_FLAG_WRITTEN); - - if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &eb->bflags)) { - spin_lock(&root->fs_info->delalloc_lock); - if (root->fs_info->dirty_metadata_bytes >= eb->len) - root->fs_info->dirty_metadata_bytes -= eb->len; - else - WARN_ON(1); - spin_unlock(&root->fs_info->delalloc_lock); - } - - btrfs_tree_unlock(eb); -out: - if (!trylock_page(page)) { - flush_fn(data); - lock_page(page); - } - return 0; -} - static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info, int read_only) { @@ -3787,7 +3741,6 @@ int btrfs_cleanup_transaction(struct btrfs_root *root) } static struct extent_io_ops btree_extent_io_ops = { - .write_cache_pages_lock_hook = btree_lock_page_hook, .readpage_end_io_hook = btree_readpage_end_io_hook, .readpage_io_failed_hook = btree_io_failed_hook, .submit_bio_hook = btree_submit_bio_hook, |