On Tue, Mar 20, 2007 at 10:16:14AM -0400, J. Bruce Fields wrote: > On Tue, Mar 20, 2007 at 04:16:56PM +1100, Herbert Xu wrote: > > Thanks for the patch. However I still have a question as to why > > this is happening. > > > > As far as I can see scatterwalk_copychunks is only called in two > > places. In both spots it only processes one block of data. Since > > we set the maximum block size to PAGE_SIZE/8 I don't see how you > > can get an offset of zero and still roll over to the next page > > in scatterwalk_copychunks. > > Are the elements of the scatterlists assumed to always be full pages? I > need to encrypt things that look like, for example: > > sg[0].page = page1 > sg[0].offset = 0 > sg[0].length = 5 > sg[1].page = page2 > sg[1].offset = 0 > sg[1].length = 37 (Erm, second should be 27--I did mean this to come out to a multiple of 8....)--b. > > and worse.... I could do this by hand if I had to, but the crypto code, > if it's not designed to handle this sort of thing, seems very close, so > I'd rather enhance it than duplicate a lot of this complicated > scatterlist-traversal stuff. > > --b. > _______________________________________________ > NFSv4 mailing list > NFSv4@xxxxxxxxxxxxx > http://linux-nfs.org/cgi-bin/mailman/listinfo/nfsv4 - To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
