Commit f2bdf9a8 authored Feb 21, 2013 by Josef Bacik

Btrfs: make sure NODATACOW also gets NODATASUM set

A user reported hitting the BUG_ON() in btrfs_finished_ordered_io() where we had
csums on a NOCOW extent. This can happen if we have NODATACOW set but not
NODATASUM set, which can happen in two cases, either we mount with -o nodatacow
and then write into preallocated space, or chattr +C a directory and move a file
into that directory. Liu has fixed the move case in a different place, but this
fixes the mount -o nodatacow case. Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>

parent dc81cdc5

fs/btrfs/inode.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -5574,7 +5574,8 @@ static struct inode btrfs_new_inode(struct btrfs_trans_handle trans,
		if (btrfs_test_opt(root, NODATASUM))
		BTRFS_I(inode)->flags \|= BTRFS_INODE_NODATASUM;
		if (btrfs_test_opt(root, NODATACOW))
		BTRFS_I(inode)->flags \|= BTRFS_INODE_NODATACOW;
		BTRFS_I(inode)->flags \|= BTRFS_INODE_NODATACOW \|
		BTRFS_INODE_NODATASUM;
		}

		insert_inode_hash(inode);

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