diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2019-04-23 21:55:59 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-04-25 17:20:06 -0700 |
| commit | 0edd6b64d1939e9e9168ff27947995bb7751db5d (patch) | |
| tree | bda2ebb26824837370940415fa1857bb29d28d06 /kernel | |
| parent | 6dd7f14080473b655c247863e61b7c34424f0c83 (diff) | |
bpf: Fix preempt_enable_no_resched() abuse
Unless the very next line is schedule(), or implies it, one must not use
preempt_enable_no_resched(). It can cause a preemption to go missing and
thereby cause arbitrary delays, breaking the PREEMPT=y invariant.
Cc: Roman Gushchin <guro@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions