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Btrfs: Add inode flags support

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This patch adds NODATASUM & NODATACOW inode flags support.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan
2008-01-08 15:54:37 -05:00
committed by Chris Mason
parent c31f8830f0
commit b98b6767a0
3 changed files with 23 additions and 13 deletions
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11
fs/btrfs/ctree.h
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@@ -447,7 +447,18 @@ struct btrfs_root {
#define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt)
#define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \
BTRFS_MOUNT_##opt)
/*
* Inode flags
*/
#define BTRFS_INODE_NODATASUM 0x1
#define BTRFS_INODE_NODATACOW 0x2
#define btrfs_clear_flag(inode, flag) (BTRFS_I(inode)->flags &= \
~BTRFS_INODE_##flag)
#define btrfs_set_flag(inode, flag) (BTRFS_I(inode)->flags |= \
BTRFS_INODE_##flag)
#define btrfs_test_flag(inode, flag) (BTRFS_I(inode)->flags & \
BTRFS_INODE_##flag)
/* some macros to generate set/get funcs for the struct fields. This
* assumes there is a lefoo_to_cpu for every type, so lets make a simple
* one for u8: