From: Andrii Nakryiko <andrii@kernel.org>
To: <bpf@vger.kernel.org>, <ast@kernel.org>, <daniel@iogearbox.net>,
<martin.lau@kernel.org>
Cc: <andrii@kernel.org>, <kernel-team@meta.com>,
Jiri Olsa <jolsa@kernel.org>
Subject: [PATCH v2 bpf-next 3/9] libbpf: use explicit map reuse flag to skip map creation steps
Date: Tue, 2 Jan 2024 11:00:49 -0800 [thread overview]
Message-ID: <20240102190055.1602698-4-andrii@kernel.org> (raw)
In-Reply-To: <20240102190055.1602698-1-andrii@kernel.org>
Instead of inferring whether map already point to previously
created/pinned BPF map (which user can specify with bpf_map__reuse_fd()) API),
use explicit map->reused flag that is set in such case.
Acked-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
tools/lib/bpf/libbpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 4d4951933836..a0cf57b59b6a 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5448,7 +5448,7 @@ static int bpf_object_create_maps(struct bpf_object *obj)
}
}
- if (map->fd >= 0) {
+ if (map->reused) {
pr_debug("map '%s': skipping creation (preset fd=%d)\n",
map->name, map->fd);
} else {
--
2.34.1
next prev parent reply other threads:[~2024-01-02 19:01 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-02 19:00 [PATCH v2 bpf-next 0/9] Libbpf-side __arg_ctx fallback support Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 1/9] libbpf: name internal functions consistently Andrii Nakryiko
2024-01-03 23:12 ` Alexei Starovoitov
2024-01-03 23:17 ` Eduard Zingerman
2024-01-04 0:30 ` Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 2/9] libbpf: make uniform use of btf__fd() accessor inside libbpf Andrii Nakryiko
2024-01-02 19:00 ` Andrii Nakryiko [this message]
2024-01-02 19:00 ` [PATCH v2 bpf-next 4/9] libbpf: don't rely on map->fd as an indicator of map being created Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 5/9] libbpf: use stable map placeholder FDs Andrii Nakryiko
2024-01-03 20:57 ` Eduard Zingerman
2024-01-03 22:46 ` Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 6/9] libbpf: move exception callbacks assignment logic into relocation step Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 7/9] libbpf: move BTF loading step after " Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 8/9] libbpf: implement __arg_ctx fallback logic Andrii Nakryiko
2024-01-03 20:57 ` Eduard Zingerman
2024-01-03 23:10 ` Andrii Nakryiko
2024-01-03 23:43 ` Eduard Zingerman
2024-01-03 23:59 ` Andrii Nakryiko
2024-01-04 0:09 ` Eduard Zingerman
2024-01-04 0:27 ` Andrii Nakryiko
2024-01-02 19:00 ` [PATCH v2 bpf-next 9/9] selftests/bpf: add arg:ctx cases to test_global_funcs tests Andrii Nakryiko
2024-01-03 20:57 ` Eduard Zingerman
2024-01-03 23:17 ` Andrii Nakryiko
2024-01-03 23:51 ` Eduard Zingerman
2024-01-04 0:26 ` Andrii Nakryiko
2024-01-04 0:28 ` Eduard Zingerman
2024-01-02 19:57 ` [PATCH v2 bpf-next 0/9] Libbpf-side __arg_ctx fallback support Andrii Nakryiko
2024-01-03 20:57 ` Eduard Zingerman
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