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| author | Davidlohr Bueso <dave@stgolabs.net> | 2019-02-11 19:15:29 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-02-11 22:51:09 +0300 |
| commit | e451eb51068496054d071af10b3530af4002a4f4 (patch) | |
| tree | 16bb1b5cf6371282e39850d1c98978f261c3cb57 /tools/perf/scripts/python/futex-contention.py | |
| parent | 3defaf2f15b2bfd86c6664181ac009e91985f8ac (diff) | |
| download | linux-e451eb51068496054d071af10b3530af4002a4f4.tar.xz | |
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>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions