[net-next,0/4] splice, net: Replace sendpage with sendmsg(MSG_SPLICE_PAGES), part 2

Message

David Howells May 24, 2023, 2:49 p.m. UTC

Here's the second tranche of patches towards providing a MSG_SPLICE_PAGES
internal sendmsg flag that is intended to replace the ->sendpage() op with
calls to sendmsg().  MSG_SPLICE_PAGES is a hint that tells the protocol
that it should splice the pages supplied if it can and copy them if not.

This set consists of the following parts:

 (1) Implement MSG_SPLICE_PAGES support in Chelsio TLS and make
     chtls_sendpage() just a wrapper around sendmsg().

 (2) Implement MSG_SPLICE_PAGES support in AF_KCM and make kcm_sendpage()
     just a wrapper around sendmsg().

I've pushed the patches here also:

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=sendpage-2

David

Link: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=51c78a4d532efe9543a4df019ff405f05c6157f6 # part 1

David Howells (4):
  chelsio: Support MSG_SPLICE_PAGES
  chelsio: Convert chtls_sendpage() to use MSG_SPLICE_PAGES
  kcm: Support MSG_SPLICE_PAGES
  kcm: Convert kcm_sendpage() to use MSG_SPLICE_PAGES

 .../chelsio/inline_crypto/chtls/chtls_io.c    | 121 ++--------
 net/kcm/kcmsock.c                             | 216 +++++-------------
 2 files changed, 74 insertions(+), 263 deletions(-)