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btrfs: sink get_extent parameter to read_extent_buffer_pages

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All callers pass btree_get_extent, which needs to be exported.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2017-06-23 04:09:57 +02:00
parent 4ef77695a0
commit 6af49dbde9
4 changed files with 11 additions and 8 deletions
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8
fs/btrfs/disk-io.c
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@@ -220,7 +220,7 @@ void btrfs_set_buffer_lockdep_class(u64 objectid, struct extent_buffer *eb,
* extents on the btree inode are pretty simple, there's one extent
* that covers the entire device
*/
static struct extent_map *btree_get_extent(struct btrfs_inode *inode,
struct extent_map *btree_get_extent(struct btrfs_inode *inode,
struct page *page, size_t pg_offset, u64 start, u64 len,
int create)
{
@@ -455,7 +455,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_fs_info *fs_info,
io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree;
while (1) {
ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
btree_get_extent, mirror_num);
mirror_num);
if (!ret) {
if (!verify_parent_transid(io_tree, eb,
parent_transid, 0))
@@ -1012,7 +1012,7 @@ void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr)
if (IS_ERR(buf))
return;
read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
buf, WAIT_NONE, btree_get_extent, 0);
buf, WAIT_NONE, 0);
free_extent_buffer(buf);
}
@@ -1031,7 +1031,7 @@ int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
set_bit(EXTENT_BUFFER_READAHEAD, &buf->bflags);
ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK,
btree_get_extent, mirror_num);
mirror_num);
if (ret) {
free_extent_buffer(buf);
return ret;