xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

btrfs: sink blocksize parameter to btrfs_find_create_tree_block

Browse Source 
Finally it's clear that the requested blocksize is always equal to
nodesize, with one exception, the superblock.

Superblock has fixed size regardless of the metadata block size, but
uses the same helpers to initialize sys array/chunk tree and to work
with the chunk items. So it pretends to be an extent_buffer for a
moment, btrfs_read_sys_array is full of special cases, we're adding one
more.

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba
2014-06-15 02:39:54 +02:00
parent fe864576de
commit a83fffb75d
5 changed files with 17 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
fs/btrfs/disk-io.c
View File

@@ -1078,7 +1078,7 @@ void readahead_tree_block(struct btrfs_root *root, u64 bytenr)
struct extent_buffer *buf = NULL;
struct inode *btree_inode = root->fs_info->btree_inode;
buf = btrfs_find_create_tree_block(root, bytenr, root->nodesize);
buf = btrfs_find_create_tree_block(root, bytenr);
if (!buf)
return;
read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
@@ -1094,7 +1094,7 @@ int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,
struct extent_io_tree *io_tree = &BTRFS_I(btree_inode)->io_tree;
int ret;
buf = btrfs_find_create_tree_block(root, bytenr, root->nodesize);
buf = btrfs_find_create_tree_block(root, bytenr);
if (!buf)
return 0;
@@ -1125,12 +1125,12 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
}
struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
u64 bytenr, u32 blocksize)
u64 bytenr)
{
if (btrfs_test_is_dummy_root(root))
return alloc_test_extent_buffer(root->fs_info, bytenr,
blocksize);
return alloc_extent_buffer(root->fs_info, bytenr, blocksize);
root->nodesize);
return alloc_extent_buffer(root->fs_info, bytenr, root->nodesize);
}
@@ -1152,7 +1152,7 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
struct extent_buffer *buf = NULL;
int ret;
buf = btrfs_find_create_tree_block(root, bytenr, root->nodesize);
buf = btrfs_find_create_tree_block(root, bytenr);
if (!buf)
return NULL;