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| /openbmc/linux/net/ceph/ |
| H A D | messenger_v2.c | f36217e3 Wed Mar 23 11:17:15 CDT 2022 Jeff Layton <jlayton@kernel.org> libceph: support sparse reads on msgr2 secure codepath
Add a new init_sgs_pages helper that populates the scatterlist from
an arbitrary point in an array of pages.
Change setup_message_sgs to take an optional pointer to an array of
pages. If that's set, then the scatterlist will be set using that
array instead of the cursor.
When given a sparse read on a secure connection, decrypt the data
in-place rather than into the final destination, by passing it the
in_enc_pages array.
After decrypting, run the sparse_read state machine in a loop, copying
data from the decrypted pages until it's complete.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-and-tested-by: Luís Henriques <lhenriques@suse.de>
Reviewed-by: Milind Changire <mchangir@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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