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Btrfs: kill free_space pointer from inode structure

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Inodes always allocate free space with BTRFS_BLOCK_GROUP_DATA type,
which means every inode has the same BTRFS_I(inode)->free_space pointer.

This shrinks struct btrfs_inode by 4 bytes (or 8 bytes on 64 bits).

Signed-off-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Li Zefan
2012-07-09 20:21:07 -06:00
committed by Chris Mason
parent d5b025d510
commit b4d7c3c945
4 changed files with 10 additions and 19 deletions
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3
fs/btrfs/btrfs_inode.h
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@@ -87,9 +87,6 @@ struct btrfs_inode {
/* node for the red-black tree that links inodes in subvolume root */
struct rb_node rb_node;
/* the space_info for where this inode's data allocations are done */
struct btrfs_space_info *space_info;
unsigned long runtime_flags;
/* full 64 bit generation number, struct vfs_inode doesn't have a big