BTRFS_INODE_SYNC
if (flags & BTRFS_INODE_SYNC)
if (inode->flags & BTRFS_INODE_SYNC)
inode_flags |= BTRFS_INODE_SYNC;
inode_flags &= ~BTRFS_INODE_SYNC;
BTRFS_INODE_SYNC | \