On Sun, 2013-07-07 at 14:46 +0200, Bernd Schubert wrote: > The block layer has no knowledge which file a block belongs to. Sure... > Even for > file systems that is hard task to figure out, as only inodes store > information which blocks they use. So if you would want to figure out > the corresponding file, you first need to scan through all inodes and > search for the specific block. Once you have the corresponding inode you > need to find directory-entries referencing it. So lots of expensive > reverse searching. Well of course nothing that should run online in the RAID drivers... but when you have a tool like raid6check or similar... it sounds nice if it would tell you which files were affected (if any). Cheers, Chris.
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