Chris Mason a68d5933a0 Btrfs: Update nodatacow mode to support cloned single files and resizing ... Before, nodatacow only checked to make sure multiple roots didn't have references on a single extent. This check makes sure that multiple inodes don't have references. nodatacow needed an extra check to see if the block group was currently readonly. This way cows forced by the chunk relocation code are honored. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2008-09-25 11:04:02 -04:00
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btrfs	Btrfs: Update nodatacow mode to support cloned single files and resizing	2008-09-25 11:04:02 -04:00