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Btrfs: remove #if 0 code

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Btrfs had some old code sitting around under #if 0, this drops it.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2009-04-27 07:29:04 -04:00
parent d6397baee4
commit b7967db75a
3 changed files with 1 additions and 188 deletions
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48
fs/btrfs/disk-io.c
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@ -584,18 +584,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
btrfs_set_work_high_prio(&async->work);
btrfs_queue_worker(&fs_info->workers, &async->work);
#if 0
int limit = btrfs_async_submit_limit(fs_info);
if (atomic_read(&fs_info->nr_async_submits) > limit) {
wait_event_timeout(fs_info->async_submit_wait,
(atomic_read(&fs_info->nr_async_submits) < limit),
HZ/10);
wait_event_timeout(fs_info->async_submit_wait,
(atomic_read(&fs_info->nr_async_bios) < limit),
HZ/10);
}
#endif
while (atomic_read(&fs_info->async_submit_draining) &&
atomic_read(&fs_info->nr_async_submits)) {
wait_event(fs_info->async_submit_wait,
@ -770,27 +759,6 @@ static void btree_invalidatepage(struct page *page, unsigned long offset)
}
}
#if 0
static int btree_writepage(struct page *page, struct writeback_control *wbc)
{
struct buffer_head *bh;
struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
struct buffer_head *head;
if (!page_has_buffers(page)) {
create_empty_buffers(page, root->fs_info->sb->s_blocksize,
(1 << BH_Dirty)|(1 << BH_Uptodate));
}
head = page_buffers(page);
bh = head;
do {
if (buffer_dirty(bh))
csum_tree_block(root, bh, 0);
bh = bh->b_this_page;
} while (bh != head);
return block_write_full_page(page, btree_get_block, wbc);
}
#endif
static struct address_space_operations btree_aops = {
.readpage = btree_readpage,
.writepage = btree_writepage,
@ -1278,11 +1246,7 @@ static int btrfs_congested_fn(void *congested_data, int bdi_bits)
int ret = 0;
struct btrfs_device *device;
struct backing_dev_info *bdi;
#if 0
if ((bdi_bits & (1 << BDI_write_congested)) &&
btrfs_congested_async(info, 0))
return 1;
#endif
list_for_each_entry(device, &info->fs_devices->devices, dev_list) {
if (!device->bdev)
continue;
@ -2334,16 +2298,6 @@ int close_ctree(struct btrfs_root *root)
btrfs_stop_workers(&fs_info->endio_write_workers);
btrfs_stop_workers(&fs_info->submit_workers);
#if 0
while (!list_empty(&fs_info->hashers)) {
struct btrfs_hasher *hasher;
hasher = list_entry(fs_info->hashers.next, struct btrfs_hasher,
hashers);
list_del(&hasher->hashers);
crypto_free_hash(&fs_info->hash_tfm);
kfree(hasher);
}
#endif
btrfs_close_devices(fs_info->fs_devices);
btrfs_mapping_tree_free(&fs_info->mapping_tree);