Btrfs: Count space allocated to file in bytes
This patch makes btrfs count space allocated to file in bytes instead
of 512 byte sectors.
Everything else in btrfs uses a byte count instead of sector sizes or
blocks sizes, so this fits better.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ff0c359..f9df89c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -652,7 +652,7 @@
BUG_ON(ret);
btrfs_release_path(root, path);
- inode->i_blocks += ordered_extent->len >> 9;
+ inode_add_bytes(inode, ordered_extent->len);
unlock_extent(io_tree, ordered_extent->file_offset,
ordered_extent->file_offset + ordered_extent->len - 1,
GFP_NOFS);
@@ -1104,7 +1104,7 @@
inode->i_ctime.tv_sec = btrfs_timespec_sec(leaf, tspec);
inode->i_ctime.tv_nsec = btrfs_timespec_nsec(leaf, tspec);
- inode->i_blocks = btrfs_inode_nblocks(leaf, inode_item);
+ inode_set_bytes(inode, btrfs_inode_nbytes(leaf, inode_item));
BTRFS_I(inode)->generation = btrfs_inode_generation(leaf, inode_item);
inode->i_generation = BTRFS_I(inode)->generation;
inode->i_rdev = 0;
@@ -1184,7 +1184,7 @@
btrfs_set_timespec_nsec(leaf, btrfs_inode_ctime(item),
inode->i_ctime.tv_nsec);
- btrfs_set_inode_nblocks(leaf, item, inode->i_blocks);
+ btrfs_set_inode_nbytes(leaf, item, inode_get_bytes(inode));
btrfs_set_inode_generation(leaf, item, BTRFS_I(inode)->generation);
btrfs_set_inode_transid(leaf, item, trans->transid);
btrfs_set_inode_rdev(leaf, item, inode->i_rdev);
@@ -1679,7 +1679,7 @@
num_dec = (orig_num_bytes -
extent_num_bytes);
if (root->ref_cows && extent_start != 0)
- dec_i_blocks(inode, num_dec);
+ inode_sub_bytes(inode, num_dec);
btrfs_mark_buffer_dirty(leaf);
} else {
extent_num_bytes =
@@ -1690,7 +1690,7 @@
if (extent_start != 0) {
found_extent = 1;
if (root->ref_cows)
- dec_i_blocks(inode, num_dec);
+ inode_sub_bytes(inode, num_dec);
}
root_gen = btrfs_header_generation(leaf);
root_owner = btrfs_header_owner(leaf);
@@ -1700,8 +1700,8 @@
u32 size = new_size - found_key.offset;
if (root->ref_cows) {
- dec_i_blocks(inode, item_end + 1 -
- found_key.offset - size);
+ inode_sub_bytes(inode, item_end + 1 -
+ new_size);
}
size =
btrfs_file_extent_calc_inline_size(size);
@@ -1709,8 +1709,8 @@
size, 1);
BUG_ON(ret);
} else if (root->ref_cows) {
- dec_i_blocks(inode, item_end + 1 -
- found_key.offset);
+ inode_sub_bytes(inode, item_end + 1 -
+ found_key.offset);
}
}
delete:
@@ -2514,7 +2514,7 @@
inode->i_gid = current->fsgid;
inode->i_mode = mode;
inode->i_ino = objectid;
- inode->i_blocks = 0;
+ inode_set_bytes(inode, 0);
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
@@ -3557,7 +3557,8 @@
struct inode *inode = dentry->d_inode;
generic_fillattr(inode, stat);
stat->blksize = PAGE_CACHE_SIZE;
- stat->blocks = inode->i_blocks + (BTRFS_I(inode)->delalloc_bytes >> 9);
+ stat->blocks = (inode_get_bytes(inode) +
+ BTRFS_I(inode)->delalloc_bytes) >> 9;
return 0;
}