[Your Reply-to: header was screwed up, so I'm sending this again. From: Ken D'Ambrosio <k...@jots.org> Reply-to: File's...@jots.org, checksum?@jots.org
] On Tue, Sep 20, 2011 at 04:35:40PM +0100, Hugo Mills wrote: > On Tue, Sep 20, 2011 at 11:24:30AM -0400, Ken D'Ambrosio wrote: > > Just wondering if/how one goes about getting the btrfs checksum of a given > > file. Is there a way? > > Checksums are computed on individual 4k blocks, not on the whole > file. There's no explicit interface for retrieving checksums, but if > you understand the data structures, you can get hold of the checksums > for a file using the BTRFS_IOC_TREE_SEARCH ioctl. > > Hugo. > -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- "How deep will this sub go?" "Oh, she'll go all the way to --- the bottom if we don't stop her."
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