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Commit f7744402 authored by Tricia Landers's avatar Tricia Landers Committed by CQ bot account: commit-bot@chromium.org
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[minfs] Implement copy-on-write data blocks 

When writing to a data block, always allocate a new block, even if
one has been previously allocated. The data txn is sent out to disk
before the inode metadata is updated to point to the new blocks.

ZX-1284 #done

Change-Id: I466ec9967a2361288061093b49acbbb845bd34d6
parent af68dc3b
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