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btrfs: pass the owner_root and level to alloc_extent_buffer 

Now that we've plumbed all of the callers to have the owner root and the
level, plumb it down into alloc_extent_buffer().

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2020-11-05 10:45:20 -05:00 committed by David Sterba
parent 5d81230baa
commit 3fbaf25817
9 changed files with 31 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
fs/btrfs/disk-io.c
View File

@ -955,11 +955,12 @@ static const struct address_space_operations btree_aops = {
struct extent_buffer *btrfs_find_create_tree_block(
struct btrfs_fs_info *fs_info,
u64 bytenr)
u64 bytenr, u64 owner_root,
int level)
{
if (btrfs_is_testing(fs_info))
return alloc_test_extent_buffer(fs_info, bytenr);
return alloc_extent_buffer(fs_info, bytenr);
return alloc_extent_buffer(fs_info, bytenr, owner_root, level);
}
/*
@ -978,7 +979,7 @@ struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
struct extent_buffer *buf = NULL;
int ret;
buf = btrfs_find_create_tree_block(fs_info, bytenr);
buf = btrfs_find_create_tree_block(fs_info, bytenr, owner_root, level);
if (IS_ERR(buf))
return buf;

3
fs/btrfs/disk-io.h
View File

@ -47,7 +47,8 @@ struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
int level, struct btrfs_key *first_key);
struct extent_buffer *btrfs_find_create_tree_block(
struct btrfs_fs_info *fs_info,
u64 bytenr);
u64 bytenr, u64 owner_root,
int level);
void btrfs_clean_tree_block(struct extent_buffer *buf);
int __cold open_ctree(struct super_block *sb,
struct btrfs_fs_devices *fs_devices,

5
fs/btrfs/extent-tree.c
View File

@ -4617,7 +4617,7 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct btrfs_fs_info *fs_info = root->fs_info;
struct extent_buffer *buf;
buf = btrfs_find_create_tree_block(fs_info, bytenr);
buf = btrfs_find_create_tree_block(fs_info, bytenr, owner, level);
if (IS_ERR(buf))
return buf;
@ -5018,7 +5018,8 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
next = find_extent_buffer(fs_info, bytenr);
if (!next) {
next = btrfs_find_create_tree_block(fs_info, bytenr);
next = btrfs_find_create_tree_block(fs_info, bytenr,
root->root_key.objectid, level - 1);
if (IS_ERR(next))
return PTR_ERR(next);

12
fs/btrfs/extent_io.c
View File

@ -5180,7 +5180,7 @@ free_eb:
#endif
struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start)
u64 start, u64 owner_root, int level)
{
unsigned long len = fs_info->nodesize;
int num_pages;
@ -6128,19 +6128,21 @@ int try_release_extent_buffer(struct page *page)
* btrfs_readahead_tree_block - attempt to readahead a child block
* @fs_info: the fs_info
* @bytenr: bytenr to read
* @owner_root: objectid of the root that owns this eb
* @gen: generation for the uptodate check, can be 0
* @level: level for the eb
*
* Attempt to readahead a tree block at @bytenr. If @gen is 0 then we do a
* normal uptodate check of the eb, without checking the generation. If we have
* to read the block we will not block on anything.
*/
void btrfs_readahead_tree_block(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 gen)
u64 bytenr, u64 owner_root, u64 gen, int level)
{
struct extent_buffer *eb;
int ret;
eb = btrfs_find_create_tree_block(fs_info, bytenr);
eb = btrfs_find_create_tree_block(fs_info, bytenr, owner_root, level);
if (IS_ERR(eb))
return;
@ -6168,5 +6170,7 @@ void btrfs_readahead_node_child(struct extent_buffer *node, int slot)
{
btrfs_readahead_tree_block(node->fs_info,
btrfs_node_blockptr(node, slot),
btrfs_node_ptr_generation(node, slot));
btrfs_header_owner(node),
btrfs_node_ptr_generation(node, slot),
btrfs_header_level(node) - 1);
}

4
fs/btrfs/extent_io.h
View File

@ -182,7 +182,7 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo,
void set_page_extent_mapped(struct page *page);
struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start);
u64 start, u64 owner_root, int level);
struct extent_buffer *__alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start, unsigned long len);
struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info,
@ -199,7 +199,7 @@ int read_extent_buffer_pages(struct extent_buffer *eb, int wait,
int mirror_num);
void wait_on_extent_buffer_writeback(struct extent_buffer *eb);
void btrfs_readahead_tree_block(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 gen);
u64 bytenr, u64 owner_root, u64 gen, int level);
void btrfs_readahead_node_child(struct extent_buffer *node, int slot);
static inline int num_extent_pages(const struct extent_buffer *eb)

8
fs/btrfs/reada.c
View File

@ -656,12 +656,13 @@ static int reada_pick_zone(struct btrfs_device *dev)
}
static int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
int mirror_num, struct extent_buffer **eb)
u64 owner_root, int level, int mirror_num,
struct extent_buffer **eb)
{
struct extent_buffer *buf = NULL;
int ret;
buf = btrfs_find_create_tree_block(fs_info, bytenr);
buf = btrfs_find_create_tree_block(fs_info, bytenr, owner_root, level);
if (IS_ERR(buf))
return 0;
@ -749,7 +750,8 @@ static int reada_start_machine_dev(struct btrfs_device *dev)
logical = re->logical;
atomic_inc(&dev->reada_in_flight);
ret = reada_tree_block_flagged(fs_info, logical, mirror_num, &eb);
ret = reada_tree_block_flagged(fs_info, logical, re->owner_root,
re->level, mirror_num, &eb);
if (ret)
__readahead_hook(fs_info, re, NULL, ret);
else if (eb)

3
fs/btrfs/relocation.c
View File

@ -2513,7 +2513,8 @@ int relocate_tree_blocks(struct btrfs_trans_handle *trans,
/* Kick in readahead for tree blocks with missing keys */
rbtree_postorder_for_each_entry_safe(block, next, blocks, rb_node) {
if (!block->key_ready)
btrfs_readahead_tree_block(fs_info, block->bytenr, 0);
btrfs_readahead_tree_block(fs_info, block->bytenr, 0, 0,
block->level);
}
/* Get first keys */

4
fs/btrfs/tree-log.c
View File

@ -2699,7 +2699,9 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
btrfs_node_key_to_cpu(cur, &first_key, path->slots[*level]);
blocksize = fs_info->nodesize;
next = btrfs_find_create_tree_block(fs_info, bytenr);
next = btrfs_find_create_tree_block(fs_info, bytenr,
btrfs_header_owner(cur),
*level - 1);
if (IS_ERR(next))
return PTR_ERR(next);

3
fs/btrfs/volumes.c
View File

@ -6903,7 +6903,8 @@ int btrfs_read_sys_array(struct btrfs_fs_info *fs_info)
* fixed to BTRFS_SUPER_INFO_SIZE. If nodesize > sb size, this will
* overallocate but we can keep it as-is, only the first page is used.
*/
sb = btrfs_find_create_tree_block(fs_info, BTRFS_SUPER_INFO_OFFSET);
sb = btrfs_find_create_tree_block(fs_info, BTRFS_SUPER_INFO_OFFSET,
root->root_key.objectid, 0);
if (IS_ERR(sb))
return PTR_ERR(sb);
set_extent_buffer_uptodate(sb);