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| author |   Björn Töpel <bjorn.topel@intel.com> | 2018-07-23 11:43:03 +0200 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-07-26 02:53:10 +0200 |
| commit | d24458e43b103c7eb7b2fd57bcac392fd7750438 (patch) | |
| tree | d5075e1f336d2568f6b393d8b1d1c501cf1c4c13 /include | |
| parent | bpf, x32: Fix regression caused by commit 24dea04767e6 (diff) | |
| download | linux-dev-d24458e43b103c7eb7b2fd57bcac392fd7750438.tar.xz linux-dev-d24458e43b103c7eb7b2fd57bcac392fd7750438.zip | |
xsk: fix poll/POLLIN premature returns
Polling for the ingress queues relies on reading the producer/consumer
pointers of the Rx queue.
Prior this commit, a cached consumer pointer could be used, instead of
the actual consumer pointer and therefore report POLLIN prematurely.
This patch makes sure that the non-cached consumer pointer is used
instead.
Reported-by: Qi Zhang <qi.z.zhang@intel.com>
Tested-by: Qi Zhang <qi.z.zhang@intel.com>
Fixes: c497176cb2e4 ("xsk: add Rx receive functions and poll support")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions