The btree inode has it''s own write cache pages so we can remove this
write
cache pages hook as it''s not used. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---
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 5d3f813..2c18a4e 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,
--
1.7.7.6
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