mbox series

[net-next,v2,0/2] Change page_pool timeout handling

Message ID 20191114163715.4184099-1-jonathan.lemon@gmail.com
Headers show
Series Change page_pool timeout handling | expand

Message

Jonathan Lemon Nov. 14, 2019, 4:37 p.m. UTC 
It isn't safe to remove the page pool until all in-flight pages 
are returned.  If the pages are handed up the stack, it might be
a while before they are returned.

The page pool can also be used independently of xdp, so it shouldn't
be depending on timeout handling from the xdp memory model.  Change
things around so the pool handles its own timeout.

v2:
 - fix wording in commit log
 - fix compile error for !PAGE_POOL case
 - revise tracepoint handling

Jonathan Lemon (2):
  page_pool: do not release pool until inflight == 0.
  page_pool: remove hold/release count from tracepoints

 .../net/ethernet/stmicro/stmmac/stmmac_main.c |   4 +-
 include/net/page_pool.h                       |  54 +++-----
 include/net/xdp_priv.h                        |   4 -
 include/trace/events/page_pool.h              |  24 ++--
 include/trace/events/xdp.h                    |  19 +--
 net/core/page_pool.c                          | 123 ++++++++++-------
 net/core/xdp.c                                | 125 +++++++-----------
 7 files changed, 152 insertions(+), 201 deletions(-)