netfs: Provide facility to alloc buffer in a bvecq
Provide facility to allocate a series of bvecq structs and to attach
sufficient pages to that series to provide a buffer for the specified
amount of space. This can be used to do things like creating an encryption
buffer in cifs and it can then be attached to an ITER_BVECQ iterator and
passed to a socket.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Shyam Prasad N <sprasad@microsoft.com>
cc: Tom Talpey <tom@talpey.com>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
3 files changed
