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btrfs: remove parameter blocksize from read_tree_block 

We know the tree block size, no need to pass it around.

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba 2014-06-15 01:07:32 +02:00
parent 453848a05f
commit ce86cd5917
7 changed files with 18 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/btrfs/backref.c
View File

@ -490,7 +490,7 @@ static int __add_missing_keys(struct btrfs_fs_info *fs_info,
continue;
BUG_ON(!ref->wanted_disk_byte);
eb = read_tree_block(fs_info->tree_root, ref->wanted_disk_byte,
fs_info->tree_root->nodesize, 0);
0);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
return -EIO;
@ -1028,12 +1028,10 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans,
if (ref->count && ref->parent) {
if (extent_item_pos && !ref->inode_list &&
ref->level == 0) {
u32 bsz;
struct extent_buffer *eb;
bsz = fs_info->extent_root->nodesize;
eb = read_tree_block(fs_info->extent_root,
ref->parent, bsz, 0);
ref->parent, 0);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
ret = -EIO;

10
fs/btrfs/ctree.c
View File

@ -1425,7 +1425,6 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
struct tree_mod_root *old_root = NULL;
u64 old_generation = 0;
u64 logical;
u32 blocksize;
eb_root = btrfs_read_lock_root_node(root);
tm = __tree_mod_log_oldest_root(root->fs_info, eb_root, time_seq);
@ -1444,8 +1443,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
if (old_root && tm && tm->op != MOD_LOG_KEY_REMOVE_WHILE_FREEING) {
btrfs_tree_read_unlock(eb_root);
free_extent_buffer(eb_root);
blocksize = root->nodesize;
old = read_tree_block(root, logical, blocksize, 0);
old = read_tree_block(root, logical, 0);
if (WARN_ON(!old || !extent_buffer_uptodate(old))) {
free_extent_buffer(old);
btrfs_warn(root->fs_info,
@ -1692,8 +1690,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
uptodate = 0;
if (!cur || !uptodate) {
if (!cur) {
cur = read_tree_block(root, blocknr,
blocksize, gen);
cur = read_tree_block(root, blocknr, gen);
if (!cur || !extent_buffer_uptodate(cur)) {
free_extent_buffer(cur);
return -EIO;
@ -1872,7 +1869,6 @@ static noinline struct extent_buffer *read_node_slot(struct btrfs_root *root,
BUG_ON(level == 0);
eb = read_tree_block(root, btrfs_node_blockptr(parent, slot),
root->nodesize,
btrfs_node_ptr_generation(parent, slot));
if (eb && !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
@ -2507,7 +2503,7 @@ read_block_for_search(struct btrfs_trans_handle *trans,
btrfs_release_path(p);
ret = -EAGAIN;
tmp = read_tree_block(root, blocknr, blocksize, 0);
tmp = read_tree_block(root, blocknr, 0);
if (tmp) {
/*
* If the read above didn't mark this buffer up to date,

17
fs/btrfs/disk-io.c
View File

@ -1138,12 +1138,12 @@ int btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
}
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
u32 blocksize, u64 parent_transid)
u64 parent_transid)
{
struct extent_buffer *buf = NULL;
int ret;
buf = btrfs_find_create_tree_block(root, bytenr, blocksize);
buf = btrfs_find_create_tree_block(root, bytenr, root->nodesize);
if (!buf)
return NULL;
@ -1484,7 +1484,6 @@ static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
struct btrfs_fs_info *fs_info = tree_root->fs_info;
struct btrfs_path *path;
u64 generation;
u32 blocksize;
int ret;
path = btrfs_alloc_path();
@ -1509,9 +1508,8 @@ static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
}
generation = btrfs_root_generation(&root->root_item);
blocksize = root->nodesize;
root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item),
blocksize, generation);
generation);
if (!root->node) {
ret = -ENOMEM;
goto find_fail;
@ -2139,7 +2137,6 @@ int open_ctree(struct super_block *sb,
{
u32 sectorsize;
u32 nodesize;
u32 blocksize;
u32 stripesize;
u64 generation;
u64 features;
@ -2643,7 +2640,6 @@ int open_ctree(struct super_block *sb,
goto fail_sb_buffer;
}
blocksize = tree_root->nodesize;
generation = btrfs_super_chunk_root_generation(disk_super);
__setup_root(nodesize, sectorsize, stripesize, chunk_root,
@ -2651,7 +2647,7 @@ int open_ctree(struct super_block *sb,
chunk_root->node = read_tree_block(chunk_root,
btrfs_super_chunk_root(disk_super),
blocksize, generation);
generation);
if (!chunk_root->node ||
!test_bit(EXTENT_BUFFER_UPTODATE, &chunk_root->node->bflags)) {
printk(KERN_WARNING "BTRFS: failed to read chunk root on %s\n",
@ -2684,12 +2680,11 @@ int open_ctree(struct super_block *sb,
}
retry_root_backup:
blocksize = tree_root->nodesize;
generation = btrfs_super_generation(disk_super);
tree_root->node = read_tree_block(tree_root,
btrfs_super_root(disk_super),
blocksize, generation);
generation);
if (!tree_root->node ||
!test_bit(EXTENT_BUFFER_UPTODATE, &tree_root->node->bflags)) {
printk(KERN_WARNING "BTRFS: failed to read tree root on %s\n",
@ -2858,7 +2853,6 @@ int open_ctree(struct super_block *sb,
err = -EIO;
goto fail_qgroup;
}
blocksize = tree_root->nodesize;
log_tree_root = btrfs_alloc_root(fs_info);
if (!log_tree_root) {
@ -2870,7 +2864,6 @@ int open_ctree(struct super_block *sb,
log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID);
log_tree_root->node = read_tree_block(tree_root, bytenr,
blocksize,
generation + 1);
if (!log_tree_root->node ||
!extent_buffer_uptodate(log_tree_root->node)) {

2
fs/btrfs/disk-io.h
View File

@ -45,7 +45,7 @@ struct btrfs_device;
struct btrfs_fs_devices;
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
u32 blocksize, u64 parent_transid);
u64 parent_transid);
void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize,
int mirror_num, struct extent_buffer **eb);

8
fs/btrfs/extent-tree.c
View File

@ -7645,7 +7645,6 @@ static int account_shared_subtree(struct btrfs_trans_handle *trans,
level = root_level;
while (level >= 0) {
if (path->nodes[level] == NULL) {
int child_bsize = root->nodesize;
int parent_slot;
u64 child_gen;
u64 child_bytenr;
@ -7657,8 +7656,7 @@ static int account_shared_subtree(struct btrfs_trans_handle *trans,
child_bytenr = btrfs_node_blockptr(eb, parent_slot);
child_gen = btrfs_node_ptr_generation(eb, parent_slot);
eb = read_tree_block(root, child_bytenr, child_bsize,
child_gen);
eb = read_tree_block(root, child_bytenr, child_gen);
if (!eb || !extent_buffer_uptodate(eb)) {
ret = -EIO;
goto out;
@ -7674,7 +7672,7 @@ static int account_shared_subtree(struct btrfs_trans_handle *trans,
ret = btrfs_qgroup_record_ref(trans, root->fs_info,
root->objectid,
child_bytenr,
child_bsize,
root->nodesize,
BTRFS_QGROUP_OPER_SUB_SUBTREE,
0);
if (ret)
@ -7889,7 +7887,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
if (!next) {
if (reada && level == 1)
reada_walk_down(trans, root, wc, path);
next = read_tree_block(root, bytenr, blocksize, generation);
next = read_tree_block(root, bytenr, generation);
if (!next || !extent_buffer_uptodate(next)) {
free_extent_buffer(next);
return -EIO;

1
fs/btrfs/print-tree.c
View File

@ -336,7 +336,6 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
for (i = 0; i < nr; i++) {
struct extent_buffer *next = read_tree_block(root,
btrfs_node_blockptr(c, i),
root->nodesize,
btrfs_node_ptr_generation(c, i));
if (btrfs_is_leaf(next) &&
level != 1)

11
fs/btrfs/relocation.c
View File

@ -1813,8 +1813,7 @@ int replace_path(struct btrfs_trans_handle *trans,
break;
}
eb = read_tree_block(dest, old_bytenr, blocksize,
old_ptr_gen);
eb = read_tree_block(dest, old_bytenr, old_ptr_gen);
if (!eb || !extent_buffer_uptodate(eb)) {
ret = (!eb) ? -ENOMEM : -EIO;
free_extent_buffer(eb);
@ -1944,7 +1943,6 @@ int walk_down_reloc_tree(struct btrfs_root *root, struct btrfs_path *path,
u64 bytenr;
u64 ptr_gen = 0;
u64 last_snapshot;
u32 blocksize;
u32 nritems;
last_snapshot = btrfs_root_last_snapshot(&root->root_item);
@ -1970,8 +1968,7 @@ int walk_down_reloc_tree(struct btrfs_root *root, struct btrfs_path *path,
}
bytenr = btrfs_node_blockptr(eb, path->slots[i]);
blocksize = root->nodesize;
eb = read_tree_block(root, bytenr, blocksize, ptr_gen);
eb = read_tree_block(root, bytenr, ptr_gen);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
return -EIO;
@ -2680,7 +2677,7 @@ static int do_relocation(struct btrfs_trans_handle *trans,
blocksize = root->nodesize;
generation = btrfs_node_ptr_generation(upper->eb, slot);
eb = read_tree_block(root, bytenr, blocksize, generation);
eb = read_tree_block(root, bytenr, generation);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
err = -EIO;
@ -2842,7 +2839,7 @@ static int get_tree_block_key(struct reloc_control *rc,
BUG_ON(block->key_ready);
eb = read_tree_block(rc->extent_root, block->bytenr,
block->key.objectid, block->key.offset);
block->key.offset);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
return -EIO;