Messages in this thread | | | Date | Wed, 11 Nov 2015 01:48:11 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH 0/2] Introduce the request handling for dm-crypt |
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On Wed, Nov 11, 2015 at 05:31:43PM +0800, Baolin Wang wrote: > Now the dm-crypt code only implemented the 'based-bio' method to encrypt/ > decrypt block data, which can only hanle one bio at one time. As we know, > one bio must use the sequential physical address and it also has a limitation > of length. Thus it may limit the big block encyrtion/decryption when some > hardware support the big block data encryption. > > This patch series introduc the 'based-request' method to handle the data > encryption/decryption. One request can contain multiple bios, so it can > handle big block data to improve the efficiency.
NAK for more request based stacking or DM drivers. They are a major pain to deal with, and adding more with different requirements then dm-multipath is not helping in actually making that one work properly.
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