* [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program
@ 2023-01-11 10:11 Jiri Olsa
2023-01-11 10:11 ` [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs Jiri Olsa
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Jiri Olsa @ 2023-01-11 10:11 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko
Cc: bpf, Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
Currently we allow to load any tracing program as sleepable,
but BPF_TRACE_RAW_TP can't sleep. Making the check explicit
for tracing programs attach types, so sleepable BPF_TRACE_RAW_TP
will fail to load.
Updating the verifier error to mention iter programs as well.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
v2 changes:
- use bool for can_be_sleepable return value [Song]
- add tests [Song]
kernel/bpf/verifier.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index fa4c911603e9..f20777c2a957 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -16743,6 +16743,18 @@ BTF_ID(func, rcu_read_unlock_strict)
#endif
BTF_SET_END(btf_id_deny)
+static bool can_be_sleepable(struct bpf_prog *prog)
+{
+ if (prog->type == BPF_PROG_TYPE_TRACING) {
+ return prog->expected_attach_type == BPF_TRACE_FENTRY ||
+ prog->expected_attach_type == BPF_TRACE_FEXIT ||
+ prog->expected_attach_type == BPF_MODIFY_RETURN ||
+ prog->expected_attach_type == BPF_TRACE_ITER;
+ }
+ return prog->type == BPF_PROG_TYPE_LSM ||
+ prog->type == BPF_PROG_TYPE_KPROBE;
+}
+
static int check_attach_btf_id(struct bpf_verifier_env *env)
{
struct bpf_prog *prog = env->prog;
@@ -16761,9 +16773,8 @@ static int check_attach_btf_id(struct bpf_verifier_env *env)
return -EINVAL;
}
- if (prog->aux->sleepable && prog->type != BPF_PROG_TYPE_TRACING &&
- prog->type != BPF_PROG_TYPE_LSM && prog->type != BPF_PROG_TYPE_KPROBE) {
- verbose(env, "Only fentry/fexit/fmod_ret, lsm, and kprobe/uprobe programs can be sleepable\n");
+ if (prog->aux->sleepable && !can_be_sleepable(prog)) {
+ verbose(env, "Only fentry/fexit/fmod_ret, lsm, iter and kprobe/uprobe programs can be sleepable\n");
return -EINVAL;
}
--
2.39.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs
2023-01-11 10:11 [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Jiri Olsa
@ 2023-01-11 10:11 ` Jiri Olsa
2023-01-11 17:22 ` Song Liu
2023-01-11 17:22 ` [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Song Liu
2023-01-15 21:21 ` Alexei Starovoitov
2 siblings, 1 reply; 6+ messages in thread
From: Jiri Olsa @ 2023-01-11 10:11 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko
Cc: bpf, Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
Adding verifier tests for loading all types od allowed
sleepable programs plus reject for tp_btf type.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
.../selftests/bpf/verifier/sleepable.c | 91 +++++++++++++++++++
1 file changed, 91 insertions(+)
create mode 100644 tools/testing/selftests/bpf/verifier/sleepable.c
diff --git a/tools/testing/selftests/bpf/verifier/sleepable.c b/tools/testing/selftests/bpf/verifier/sleepable.c
new file mode 100644
index 000000000000..15da44f7ac8a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/sleepable.c
@@ -0,0 +1,91 @@
+{
+ "sleepable fentry accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fexit accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fmod_ret accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_MODIFY_RETURN,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable iter accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_ITER,
+ .kfunc = "task",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable lsm accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_LSM,
+ .kfunc = "bpf",
+ .expected_attach_type = BPF_LSM_MAC,
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable kprobe/uprobe accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_KPROBE,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable raw tracepoint reject",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_RAW_TP,
+ .kfunc = "sched_switch",
+ .result = REJECT,
+ .errstr = "Only fentry/fexit/fmod_ret, lsm, iter and kprobe/uprobe programs can be sleepable",
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
--
2.39.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program
2023-01-11 10:11 [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Jiri Olsa
2023-01-11 10:11 ` [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs Jiri Olsa
@ 2023-01-11 17:22 ` Song Liu
2023-01-15 21:21 ` Alexei Starovoitov
2 siblings, 0 replies; 6+ messages in thread
From: Song Liu @ 2023-01-11 17:22 UTC (permalink / raw)
To: Jiri Olsa
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, bpf,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
On Wed, Jan 11, 2023 at 2:13 AM Jiri Olsa <jolsa@kernel.org> wrote:
>
> Currently we allow to load any tracing program as sleepable,
> but BPF_TRACE_RAW_TP can't sleep. Making the check explicit
> for tracing programs attach types, so sleepable BPF_TRACE_RAW_TP
> will fail to load.
>
> Updating the verifier error to mention iter programs as well.
>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Song Liu <song@kernel.org>
> ---
> v2 changes:
> - use bool for can_be_sleepable return value [Song]
> - add tests [Song]
>
> kernel/bpf/verifier.c | 17 ++++++++++++++---
> 1 file changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index fa4c911603e9..f20777c2a957 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -16743,6 +16743,18 @@ BTF_ID(func, rcu_read_unlock_strict)
> #endif
> BTF_SET_END(btf_id_deny)
>
> +static bool can_be_sleepable(struct bpf_prog *prog)
> +{
> + if (prog->type == BPF_PROG_TYPE_TRACING) {
> + return prog->expected_attach_type == BPF_TRACE_FENTRY ||
> + prog->expected_attach_type == BPF_TRACE_FEXIT ||
> + prog->expected_attach_type == BPF_MODIFY_RETURN ||
> + prog->expected_attach_type == BPF_TRACE_ITER;
> + }
> + return prog->type == BPF_PROG_TYPE_LSM ||
> + prog->type == BPF_PROG_TYPE_KPROBE;
> +}
> +
> static int check_attach_btf_id(struct bpf_verifier_env *env)
> {
> struct bpf_prog *prog = env->prog;
> @@ -16761,9 +16773,8 @@ static int check_attach_btf_id(struct bpf_verifier_env *env)
> return -EINVAL;
> }
>
> - if (prog->aux->sleepable && prog->type != BPF_PROG_TYPE_TRACING &&
> - prog->type != BPF_PROG_TYPE_LSM && prog->type != BPF_PROG_TYPE_KPROBE) {
> - verbose(env, "Only fentry/fexit/fmod_ret, lsm, and kprobe/uprobe programs can be sleepable\n");
> + if (prog->aux->sleepable && !can_be_sleepable(prog)) {
> + verbose(env, "Only fentry/fexit/fmod_ret, lsm, iter and kprobe/uprobe programs can be sleepable\n");
> return -EINVAL;
> }
>
> --
> 2.39.0
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs
2023-01-11 10:11 ` [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs Jiri Olsa
@ 2023-01-11 17:22 ` Song Liu
0 siblings, 0 replies; 6+ messages in thread
From: Song Liu @ 2023-01-11 17:22 UTC (permalink / raw)
To: Jiri Olsa
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, bpf,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
On Wed, Jan 11, 2023 at 2:13 AM Jiri Olsa <jolsa@kernel.org> wrote:
>
> Adding verifier tests for loading all types od allowed
> sleepable programs plus reject for tp_btf type.
>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Song Liu <song@kernel.org>
> ---
> .../selftests/bpf/verifier/sleepable.c | 91 +++++++++++++++++++
> 1 file changed, 91 insertions(+)
> create mode 100644 tools/testing/selftests/bpf/verifier/sleepable.c
>
> diff --git a/tools/testing/selftests/bpf/verifier/sleepable.c b/tools/testing/selftests/bpf/verifier/sleepable.c
> new file mode 100644
> index 000000000000..15da44f7ac8a
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/verifier/sleepable.c
> @@ -0,0 +1,91 @@
> +{
> + "sleepable fentry accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_TRACING,
> + .expected_attach_type = BPF_TRACE_FENTRY,
> + .kfunc = "bpf_fentry_test1",
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable fexit accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_TRACING,
> + .expected_attach_type = BPF_TRACE_FENTRY,
> + .kfunc = "bpf_fentry_test1",
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable fmod_ret accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_TRACING,
> + .expected_attach_type = BPF_MODIFY_RETURN,
> + .kfunc = "bpf_fentry_test1",
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable iter accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_TRACING,
> + .expected_attach_type = BPF_TRACE_ITER,
> + .kfunc = "task",
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable lsm accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_LSM,
> + .kfunc = "bpf",
> + .expected_attach_type = BPF_LSM_MAC,
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable kprobe/uprobe accept",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_KPROBE,
> + .kfunc = "bpf_fentry_test1",
> + .result = ACCEPT,
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> +{
> + "sleepable raw tracepoint reject",
> + .insns = {
> + BPF_MOV64_IMM(BPF_REG_0, 0),
> + BPF_EXIT_INSN(),
> + },
> + .prog_type = BPF_PROG_TYPE_TRACING,
> + .expected_attach_type = BPF_TRACE_RAW_TP,
> + .kfunc = "sched_switch",
> + .result = REJECT,
> + .errstr = "Only fentry/fexit/fmod_ret, lsm, iter and kprobe/uprobe programs can be sleepable",
> + .flags = BPF_F_SLEEPABLE,
> + .runs = -1,
> +},
> --
> 2.39.0
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program
2023-01-11 10:11 [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Jiri Olsa
2023-01-11 10:11 ` [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs Jiri Olsa
2023-01-11 17:22 ` [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Song Liu
@ 2023-01-15 21:21 ` Alexei Starovoitov
2023-01-16 12:53 ` Jiri Olsa
2 siblings, 1 reply; 6+ messages in thread
From: Alexei Starovoitov @ 2023-01-15 21:21 UTC (permalink / raw)
To: Jiri Olsa
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, bpf,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
On Wed, Jan 11, 2023 at 2:11 AM Jiri Olsa <jolsa@kernel.org> wrote:
>
> Currently we allow to load any tracing program as sleepable,
> but BPF_TRACE_RAW_TP can't sleep. Making the check explicit
> for tracing programs attach types, so sleepable BPF_TRACE_RAW_TP
> will fail to load.
>
> Updating the verifier error to mention iter programs as well.
>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> ---
> v2 changes:
> - use bool for can_be_sleepable return value [Song]
> - add tests [Song]
>
> kernel/bpf/verifier.c | 17 ++++++++++++++---
> 1 file changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index fa4c911603e9..f20777c2a957 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -16743,6 +16743,18 @@ BTF_ID(func, rcu_read_unlock_strict)
> #endif
> BTF_SET_END(btf_id_deny)
>
> +static bool can_be_sleepable(struct bpf_prog *prog)
> +{
> + if (prog->type == BPF_PROG_TYPE_TRACING) {
> + return prog->expected_attach_type == BPF_TRACE_FENTRY ||
> + prog->expected_attach_type == BPF_TRACE_FEXIT ||
> + prog->expected_attach_type == BPF_MODIFY_RETURN ||
> + prog->expected_attach_type == BPF_TRACE_ITER;
> + }
> + return prog->type == BPF_PROG_TYPE_LSM ||
> + prog->type == BPF_PROG_TYPE_KPROBE;
> +}
imo it's too verbose.
Maybe try a switch stmt ?
Or at least copy prog->expected_attach_type and prog->type into variables.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program
2023-01-15 21:21 ` Alexei Starovoitov
@ 2023-01-16 12:53 ` Jiri Olsa
0 siblings, 0 replies; 6+ messages in thread
From: Jiri Olsa @ 2023-01-16 12:53 UTC (permalink / raw)
To: Alexei Starovoitov
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, bpf,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo
On Sun, Jan 15, 2023 at 01:21:48PM -0800, Alexei Starovoitov wrote:
> On Wed, Jan 11, 2023 at 2:11 AM Jiri Olsa <jolsa@kernel.org> wrote:
> >
> > Currently we allow to load any tracing program as sleepable,
> > but BPF_TRACE_RAW_TP can't sleep. Making the check explicit
> > for tracing programs attach types, so sleepable BPF_TRACE_RAW_TP
> > will fail to load.
> >
> > Updating the verifier error to mention iter programs as well.
> >
> > Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> > ---
> > v2 changes:
> > - use bool for can_be_sleepable return value [Song]
> > - add tests [Song]
> >
> > kernel/bpf/verifier.c | 17 ++++++++++++++---
> > 1 file changed, 14 insertions(+), 3 deletions(-)
> >
> > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> > index fa4c911603e9..f20777c2a957 100644
> > --- a/kernel/bpf/verifier.c
> > +++ b/kernel/bpf/verifier.c
> > @@ -16743,6 +16743,18 @@ BTF_ID(func, rcu_read_unlock_strict)
> > #endif
> > BTF_SET_END(btf_id_deny)
> >
> > +static bool can_be_sleepable(struct bpf_prog *prog)
> > +{
> > + if (prog->type == BPF_PROG_TYPE_TRACING) {
> > + return prog->expected_attach_type == BPF_TRACE_FENTRY ||
> > + prog->expected_attach_type == BPF_TRACE_FEXIT ||
> > + prog->expected_attach_type == BPF_MODIFY_RETURN ||
> > + prog->expected_attach_type == BPF_TRACE_ITER;
> > + }
> > + return prog->type == BPF_PROG_TYPE_LSM ||
> > + prog->type == BPF_PROG_TYPE_KPROBE;
> > +}
>
> imo it's too verbose.
> Maybe try a switch stmt ?
> Or at least copy prog->expected_attach_type and prog->type into variables.
ok, the switch seems better, I'll send new version
thanks,
jirka
---
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index fa4c911603e9..966dbfc14288 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -16743,6 +16743,23 @@ BTF_ID(func, rcu_read_unlock_strict)
#endif
BTF_SET_END(btf_id_deny)
+static bool can_be_sleepable(struct bpf_prog *prog)
+{
+ if (prog->type == BPF_PROG_TYPE_TRACING) {
+ switch (prog->expected_attach_type) {
+ case BPF_TRACE_FENTRY:
+ case BPF_TRACE_FEXIT:
+ case BPF_MODIFY_RETURN:
+ case BPF_TRACE_ITER:
+ return true;
+ default:
+ return false;
+ }
+ }
+ return prog->type == BPF_PROG_TYPE_LSM ||
+ prog->type == BPF_PROG_TYPE_KPROBE;
+}
+
static int check_attach_btf_id(struct bpf_verifier_env *env)
{
struct bpf_prog *prog = env->prog;
@@ -16761,9 +16778,8 @@ static int check_attach_btf_id(struct bpf_verifier_env *env)
return -EINVAL;
}
- if (prog->aux->sleepable && prog->type != BPF_PROG_TYPE_TRACING &&
- prog->type != BPF_PROG_TYPE_LSM && prog->type != BPF_PROG_TYPE_KPROBE) {
- verbose(env, "Only fentry/fexit/fmod_ret, lsm, and kprobe/uprobe programs can be sleepable\n");
+ if (prog->aux->sleepable && !can_be_sleepable(prog)) {
+ verbose(env, "Only fentry/fexit/fmod_ret, lsm, iter and kprobe/uprobe programs can be sleepable\n");
return -EINVAL;
}
^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-01-16 12:56 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-01-11 10:11 [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Jiri Olsa
2023-01-11 10:11 ` [PATCHv2 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs Jiri Olsa
2023-01-11 17:22 ` Song Liu
2023-01-11 17:22 ` [PATCHv2 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Song Liu
2023-01-15 21:21 ` Alexei Starovoitov
2023-01-16 12:53 ` Jiri Olsa
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