From: Mykyta Yatsenko <mykyta.yatsenko5@gmail.com>
To: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
daniel@iogearbox.net, kafai@meta.com, kernel-team@meta.com
Cc: Mykyta Yatsenko <yatsenko@meta.com>
Subject: [PATCH bpf v2 1/2] bpf:add _impl suffix for bpf_task_work_schedule* kfuncs
Date: Tue, 04 Nov 2025 15:29:54 +0000 [thread overview]
Message-ID: <20251104-implv2-v2-1-6dbc35f39f28@meta.com> (raw)
In-Reply-To: <20251104-implv2-v2-0-6dbc35f39f28@meta.com>
From: Mykyta Yatsenko <yatsenko@meta.com>
Rename:
bpf_task_work_schedule_resume()->bpf_task_work_schedule_resume_impl()
bpf_task_work_schedule_signal()->bpf_task_work_schedule_signal_impl()
This aligns task work scheduling kfuncs with the naming scheme required
by the implicit-argument feature.
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
---
kernel/bpf/helpers.c | 24 +++++++++++++---------
kernel/bpf/verifier.c | 12 +++++------
tools/testing/selftests/bpf/progs/task_work.c | 6 +++---
tools/testing/selftests/bpf/progs/task_work_fail.c | 8 ++++----
.../testing/selftests/bpf/progs/task_work_stress.c | 4 ++--
5 files changed, 29 insertions(+), 25 deletions(-)
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index eb25e70e0bdc0332edd21cde66d9aaadb2090312..33173b027ccf8893ce18aad474b88f8544f7b344 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -4169,7 +4169,8 @@ static int bpf_task_work_schedule(struct task_struct *task, struct bpf_task_work
}
/**
- * bpf_task_work_schedule_signal - Schedule BPF callback using task_work_add with TWA_SIGNAL mode
+ * bpf_task_work_schedule_signal_impl - Schedule BPF callback using task_work_add with TWA_SIGNAL
+ * mode
* @task: Task struct for which callback should be scheduled
* @tw: Pointer to struct bpf_task_work in BPF map value for internal bookkeeping
* @map__map: bpf_map that embeds struct bpf_task_work in the values
@@ -4178,15 +4179,17 @@ static int bpf_task_work_schedule(struct task_struct *task, struct bpf_task_work
*
* Return: 0 if task work has been scheduled successfully, negative error code otherwise
*/
-__bpf_kfunc int bpf_task_work_schedule_signal(struct task_struct *task, struct bpf_task_work *tw,
- void *map__map, bpf_task_work_callback_t callback,
- void *aux__prog)
+__bpf_kfunc int bpf_task_work_schedule_signal_impl(struct task_struct *task,
+ struct bpf_task_work *tw, void *map__map,
+ bpf_task_work_callback_t callback,
+ void *aux__prog)
{
return bpf_task_work_schedule(task, tw, map__map, callback, aux__prog, TWA_SIGNAL);
}
/**
- * bpf_task_work_schedule_resume - Schedule BPF callback using task_work_add with TWA_RESUME mode
+ * bpf_task_work_schedule_resume_impl - Schedule BPF callback using task_work_add with TWA_RESUME
+ * mode
* @task: Task struct for which callback should be scheduled
* @tw: Pointer to struct bpf_task_work in BPF map value for internal bookkeeping
* @map__map: bpf_map that embeds struct bpf_task_work in the values
@@ -4195,9 +4198,10 @@ __bpf_kfunc int bpf_task_work_schedule_signal(struct task_struct *task, struct b
*
* Return: 0 if task work has been scheduled successfully, negative error code otherwise
*/
-__bpf_kfunc int bpf_task_work_schedule_resume(struct task_struct *task, struct bpf_task_work *tw,
- void *map__map, bpf_task_work_callback_t callback,
- void *aux__prog)
+__bpf_kfunc int bpf_task_work_schedule_resume_impl(struct task_struct *task,
+ struct bpf_task_work *tw, void *map__map,
+ bpf_task_work_callback_t callback,
+ void *aux__prog)
{
return bpf_task_work_schedule(task, tw, map__map, callback, aux__prog, TWA_RESUME);
}
@@ -4377,8 +4381,8 @@ BTF_ID_FLAGS(func, bpf_strnstr);
BTF_ID_FLAGS(func, bpf_cgroup_read_xattr, KF_RCU)
#endif
BTF_ID_FLAGS(func, bpf_stream_vprintk, KF_TRUSTED_ARGS)
-BTF_ID_FLAGS(func, bpf_task_work_schedule_signal, KF_TRUSTED_ARGS)
-BTF_ID_FLAGS(func, bpf_task_work_schedule_resume, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_task_work_schedule_signal_impl, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_task_work_schedule_resume_impl, KF_TRUSTED_ARGS)
BTF_KFUNCS_END(common_btf_ids)
static const struct btf_kfunc_id_set common_kfunc_set = {
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index ff40e5e65c435862e9ecd3ed37139cc177a13ea1..8314518c8d93ae16235e6f2fe6c5c28c45cb81d2 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -12259,8 +12259,8 @@ enum special_kfunc_type {
KF_bpf_res_spin_lock_irqsave,
KF_bpf_res_spin_unlock_irqrestore,
KF___bpf_trap,
- KF_bpf_task_work_schedule_signal,
- KF_bpf_task_work_schedule_resume,
+ KF_bpf_task_work_schedule_signal_impl,
+ KF_bpf_task_work_schedule_resume_impl,
};
BTF_ID_LIST(special_kfunc_list)
@@ -12331,13 +12331,13 @@ BTF_ID(func, bpf_res_spin_unlock)
BTF_ID(func, bpf_res_spin_lock_irqsave)
BTF_ID(func, bpf_res_spin_unlock_irqrestore)
BTF_ID(func, __bpf_trap)
-BTF_ID(func, bpf_task_work_schedule_signal)
-BTF_ID(func, bpf_task_work_schedule_resume)
+BTF_ID(func, bpf_task_work_schedule_signal_impl)
+BTF_ID(func, bpf_task_work_schedule_resume_impl)
static bool is_task_work_add_kfunc(u32 func_id)
{
- return func_id == special_kfunc_list[KF_bpf_task_work_schedule_signal] ||
- func_id == special_kfunc_list[KF_bpf_task_work_schedule_resume];
+ return func_id == special_kfunc_list[KF_bpf_task_work_schedule_signal_impl] ||
+ func_id == special_kfunc_list[KF_bpf_task_work_schedule_resume_impl];
}
static bool is_kfunc_ret_null(struct bpf_kfunc_call_arg_meta *meta)
diff --git a/tools/testing/selftests/bpf/progs/task_work.c b/tools/testing/selftests/bpf/progs/task_work.c
index 23217f06a3ece641089c1ea6a470eccc82e0d1fa..663a80990f8f8759f470d2f874d02485b072a5e1 100644
--- a/tools/testing/selftests/bpf/progs/task_work.c
+++ b/tools/testing/selftests/bpf/progs/task_work.c
@@ -66,7 +66,7 @@ int oncpu_hash_map(struct pt_regs *args)
if (!work)
return 0;
- bpf_task_work_schedule_resume(task, &work->tw, &hmap, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, &work->tw, &hmap, process_work, NULL);
return 0;
}
@@ -80,7 +80,7 @@ int oncpu_array_map(struct pt_regs *args)
work = bpf_map_lookup_elem(&arrmap, &key);
if (!work)
return 0;
- bpf_task_work_schedule_signal(task, &work->tw, &arrmap, process_work, NULL);
+ bpf_task_work_schedule_signal_impl(task, &work->tw, &arrmap, process_work, NULL);
return 0;
}
@@ -102,6 +102,6 @@ int oncpu_lru_map(struct pt_regs *args)
work = bpf_map_lookup_elem(&lrumap, &key);
if (!work || work->data[0])
return 0;
- bpf_task_work_schedule_resume(task, &work->tw, &lrumap, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, &work->tw, &lrumap, process_work, NULL);
return 0;
}
diff --git a/tools/testing/selftests/bpf/progs/task_work_fail.c b/tools/testing/selftests/bpf/progs/task_work_fail.c
index 77fe8f28facdb60cd69e77b72ea24db8f97004f7..1270953fd0926f83f9ad7112d78e1b86bd1e802c 100644
--- a/tools/testing/selftests/bpf/progs/task_work_fail.c
+++ b/tools/testing/selftests/bpf/progs/task_work_fail.c
@@ -53,7 +53,7 @@ int mismatch_map(struct pt_regs *args)
work = bpf_map_lookup_elem(&arrmap, &key);
if (!work)
return 0;
- bpf_task_work_schedule_resume(task, &work->tw, &hmap, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, &work->tw, &hmap, process_work, NULL);
return 0;
}
@@ -65,7 +65,7 @@ int no_map_task_work(struct pt_regs *args)
struct bpf_task_work tw;
task = bpf_get_current_task_btf();
- bpf_task_work_schedule_resume(task, &tw, &hmap, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, &tw, &hmap, process_work, NULL);
return 0;
}
@@ -76,7 +76,7 @@ int task_work_null(struct pt_regs *args)
struct task_struct *task;
task = bpf_get_current_task_btf();
- bpf_task_work_schedule_resume(task, NULL, &hmap, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, NULL, &hmap, process_work, NULL);
return 0;
}
@@ -91,6 +91,6 @@ int map_null(struct pt_regs *args)
work = bpf_map_lookup_elem(&arrmap, &key);
if (!work)
return 0;
- bpf_task_work_schedule_resume(task, &work->tw, NULL, process_work, NULL);
+ bpf_task_work_schedule_resume_impl(task, &work->tw, NULL, process_work, NULL);
return 0;
}
diff --git a/tools/testing/selftests/bpf/progs/task_work_stress.c b/tools/testing/selftests/bpf/progs/task_work_stress.c
index 90fca06fff56ca9a03fee028ca1b69db145a227b..55e555f7f41be694f9b3d98f324b402f9355f77d 100644
--- a/tools/testing/selftests/bpf/progs/task_work_stress.c
+++ b/tools/testing/selftests/bpf/progs/task_work_stress.c
@@ -51,8 +51,8 @@ int schedule_task_work(void *ctx)
if (!work)
return 0;
}
- err = bpf_task_work_schedule_signal(bpf_get_current_task_btf(), &work->tw, &hmap,
- process_work, NULL);
+ err = bpf_task_work_schedule_signal_impl(bpf_get_current_task_btf(), &work->tw, &hmap,
+ process_work, NULL);
if (err)
__sync_fetch_and_add(&schedule_error, 1);
else
--
2.51.1
next prev parent reply other threads:[~2025-11-04 15:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-04 15:29 [PATCH bpf v2 0/2] bpf: add _impl suffix for kfuncs with implicit args Mykyta Yatsenko
2025-11-04 15:29 ` Mykyta Yatsenko [this message]
2025-11-04 19:21 ` [PATCH bpf v2 1/2] bpf:add _impl suffix for bpf_task_work_schedule* kfuncs Andrii Nakryiko
2025-11-04 15:29 ` [PATCH bpf v2 2/2] bpf:add _impl suffix for bpf_stream_vprintk() kfunc Mykyta Yatsenko
2025-11-04 19:25 ` Andrii Nakryiko
2025-11-04 17:23 ` [PATCH bpf v2 0/2] bpf: add _impl suffix for kfuncs with implicit args Ihor Solodrai
2025-11-04 19:29 ` Andrii Nakryiko
2025-11-04 19:39 ` Ihor Solodrai
2025-11-04 22:13 ` Mykyta Yatsenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251104-implv2-v2-1-6dbc35f39f28@meta.com \
--to=mykyta.yatsenko5@gmail.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=kafai@meta.com \
--cc=kernel-team@meta.com \
--cc=yatsenko@meta.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.