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Add ioctl to set per file 'nodatasum' flag

PATCH In review Amit Gud 1 participant 1 message Jun 13, 2009 Btrfs file system

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Amit Gud

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PATCH 3/3 Add ioctl to set per file 'nodatasum' flag

Add an ioctl to set 'nodatasum' flag on per file basis.

Signed-off-by Amit Gud <[email protected]>
fs/btrfs/ioctl.c +2 -0
Index: newformat2/fs/btrfs/ioctl.c
===================================================================
@@ -1330,6 +1330,8 @@ long btrfs_ioctl(struct file *file, unsi
 		return btrfs_ioctl_inode_flag(file, BTRFS_INODE_NOCOMPRESS, 0);
 	case BTRFS_IOC_NODATACOW:
 		return btrfs_ioctl_inode_flag(file, BTRFS_INODE_NODATACOW, 1);
+	case BTRFS_IOC_NODATASUM:
+		return btrfs_ioctl_inode_flag(file, BTRFS_INODE_NODATASUM, 1);
 	}
 
 	return -ENOTTY;
fs/btrfs/ioctl.h +2 -1
Index: newformat2/fs/btrfs/ioctl.h
===================================================================
@@ -69,5 +69,6 @@ struct btrfs_ioctl_clone_range_args {
 			   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_NODATACOW _IOW(BTRFS_IOCTL_MAGIC, 16, \
 			   struct btrfs_ioctl_vol_args)
-
+#define BTRFS_IOC_NODATASUM _IOW(BTRFS_IOCTL_MAGIC, 17, \
+			   struct btrfs_ioctl_vol_args)
 #endif
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