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btrfs_create, btrfs_write_super, btrfs_sync_fs

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-03-23 10:01:08 -04:00
committed by David Woodhouse
parent 79154b1b5b
commit d571976292
10 changed files with 201 additions and 47 deletions
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26
fs/btrfs/extent-tree.c
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@ -49,6 +49,7 @@ static int inc_block_ref(struct btrfs_trans_handle *trans, struct btrfs_root
item = btrfs_item_ptr(l, path.slots[0], struct btrfs_extent_item);
refs = btrfs_extent_refs(item);
btrfs_set_extent_refs(item, refs + 1);
mark_buffer_dirty(path.nodes[0]);
btrfs_release_path(root->fs_info->extent_root, &path);
finish_current_insert(trans, root->fs_info->extent_root);
@ -103,7 +104,7 @@ int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, struct
btrfs_root *root)
{
unsigned long gang[8];
struct buffer_head *gang[8];
u64 first = 0;
int ret;
int i;
@ -116,13 +117,15 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, struct
if (!ret)
break;
if (!first)
first = gang[0];
first = gang[0]->b_blocknr;
for (i = 0; i < ret; i++) {
radix_tree_delete(&root->fs_info->pinned_radix,
gang[i]);
gang[i]->b_blocknr);
brelse(gang[i]);
}
}
root->fs_info->last_insert.objectid = first;
if (root->fs_info->last_insert.objectid > first)
root->fs_info->last_insert.objectid = first;
root->fs_info->last_insert.offset = 0;
return 0;
}
@ -161,8 +164,10 @@ static int finish_current_insert(struct btrfs_trans_handle *trans, struct
static int pin_down_block(struct btrfs_root *root, u64 blocknr, int tag)
{
int err;
struct buffer_head *bh = sb_getblk(root->fs_info->sb, blocknr);
BUG_ON(!bh);
err = radix_tree_insert(&root->fs_info->pinned_radix,
blocknr, (void *)blocknr);
blocknr, bh);
BUG_ON(err);
if (err)
return err;
@ -217,6 +222,7 @@ static int __free_extent(struct btrfs_trans_handle *trans, struct btrfs_root
if (ret)
BUG();
}
mark_buffer_dirty(path.nodes[0]);
btrfs_release_path(extent_root, &path);
finish_current_insert(trans, extent_root);
return ret;
@ -232,7 +238,7 @@ static int del_pending_extents(struct btrfs_trans_handle *trans, struct
int ret;
int wret;
int err = 0;
unsigned long gang[4];
struct buffer_head *gang[4];
int i;
struct radix_tree_root *radix = &extent_root->fs_info->pinned_radix;
@ -245,10 +251,12 @@ static int del_pending_extents(struct btrfs_trans_handle *trans, struct
if (!ret)
break;
for (i = 0; i < ret; i++) {
radix_tree_tag_set(radix, gang[i], CTREE_EXTENT_PINNED);
radix_tree_tag_clear(radix, gang[i],
radix_tree_tag_set(radix, gang[i]->b_blocknr,
CTREE_EXTENT_PINNED);
radix_tree_tag_clear(radix, gang[i]->b_blocknr,
CTREE_EXTENT_PENDING_DEL);
wret = __free_extent(trans, extent_root, gang[i], 1);
wret = __free_extent(trans, extent_root,
gang[i]->b_blocknr, 1);
if (wret)
err = wret;
}