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Btrfs: kill the start argument to read_extent_buffer_pages

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Nobody uses this, it makes no sense to do partial reads of extent buffers.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik
2016-09-02 15:40:03 -04:00
committed by David Sterba
parent afcdd129e0
commit 8436ea91a1
3 changed files with 15 additions and 28 deletions
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13
fs/btrfs/disk-io.c
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@ -442,7 +442,7 @@ static int btrfs_check_super_csum(char *raw_disk_sb)
*/
static int btree_read_extent_buffer_pages(struct btrfs_root *root,
struct extent_buffer *eb,
u64 start, u64 parent_transid)
u64 parent_transid)
{
struct extent_io_tree *io_tree;
int failed = 0;
@ -454,8 +454,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
while (1) {
ret = read_extent_buffer_pages(io_tree, eb, start,
WAIT_COMPLETE,
ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
btree_get_extent, mirror_num);
if (!ret) {
if (!verify_parent_transid(io_tree, eb,
@ -1132,7 +1131,7 @@ void readahead_tree_block(struct btrfs_root *root, u64 bytenr)
if (IS_ERR(buf))
return;
read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
buf, 0, WAIT_NONE, btree_get_extent, 0);
buf, WAIT_NONE, btree_get_extent, 0);
free_extent_buffer(buf);
}
@ -1150,7 +1149,7 @@ int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,
set_bit(EXTENT_BUFFER_READAHEAD, &buf->bflags);
ret = read_extent_buffer_pages(io_tree, buf, 0, WAIT_PAGE_LOCK,
ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK,
btree_get_extent, mirror_num);
if (ret) {
free_extent_buffer(buf);
@ -1206,7 +1205,7 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
if (IS_ERR(buf))
return buf;
ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
ret = btree_read_extent_buffer_pages(root, buf, parent_transid);
if (ret) {
free_extent_buffer(buf);
return ERR_PTR(ret);
@ -4081,7 +4080,7 @@ void btrfs_btree_balance_dirty_nodelay(struct btrfs_root *root)
int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid)
{
struct btrfs_root *root = BTRFS_I(buf->pages[0]->mapping->host)->root;
return btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
return btree_read_extent_buffer_pages(root, buf, parent_transid);
}
static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,