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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-24 15:01:37 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-02-24 16:18:20 -0800 |
| commit | b0a81b94cc50a112601721fcc2f91fab78d7b9f3 (patch) | |
| tree | f4d7b2395896a53576f2743900dfb102ee86e261 /kernel/events | |
| parent | bpf: disable preemption for bpf progs attached to uprobe (diff) | |
| download | linux-b0a81b94cc50a112601721fcc2f91fab78d7b9f3.tar.gz linux-b0a81b94cc50a112601721fcc2f91fab78d7b9f3.zip | |
bpf/trace: Remove redundant preempt_disable from trace_call_bpf()
Similar to __bpf_trace_run this is redundant because __bpf_trace_run() is
invoked from a trace point via __DO_TRACE() which already disables
preemption _before_ invoking any of the functions which are attached to a
trace point.
Remove it and add a cant_sleep() check.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200224145643.059995527@linutronix.de
Diffstat (limited to 'kernel/events')
0 files changed, 0 insertions, 0 deletions