Searched hist:e451eb51068496054d071af10b3530af4002a4f4 (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/net/xdp/ |
H A D | xdp_umem.c | diff e451eb51068496054d071af10b3530af4002a4f4 Mon Feb 11 10:15:29 CST 2019 Davidlohr Bueso <dave@stgolabs.net> xsk: share the mmap_sem for page pinning
Holding mmap_sem exclusively for a gup() is an overkill. Lets share the lock and replace the gup call for gup_longterm(), as it is better suited for the lifetime of the pinning.
Fixes: c0c77d8fb787 ("xsk: add user memory registration support sockopt") Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: David S. Miller <davem@davemloft.net> Cc: Bjorn Topel <bjorn.topel@intel.com> Cc: Magnus Karlsson <magnus.karlsson@intel.com> CC: netdev@vger.kernel.org Acked-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
|