From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
"Andrii Nakryiko" <andriin@fb.com>, "Yonghong Song" <yhs@fb.com>,
"Song Liu" <songliubraving@fb.com>,
"Martin KaFai Lau" <kafai@fb.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"David Miller" <davem@redhat.com>,
"Björn Töpel" <bjorn.topel@intel.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>
Subject: [PATCH 07/18] bpf: Move bpf_tree add/del from bpf_prog_ksym_node_add/del
Date: Sun, 16 Feb 2020 20:29:54 +0100 [thread overview]
Message-ID: <20200216193005.144157-8-jolsa@kernel.org> (raw)
In-Reply-To: <20200216193005.144157-1-jolsa@kernel.org>
Moving bpf_tree add/del from bpf_prog_ksym_node_add/del,
because it will be used (and renamed) in following patches
for bpf_ksym objects. The bpf_tree is specific for bpf_prog
objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
kernel/bpf/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 9fb08b4d01f7..2fc6b28291cf 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -652,7 +652,6 @@ static void bpf_prog_ksym_node_add(struct bpf_prog_aux *aux)
{
WARN_ON_ONCE(!list_empty(&aux->ksym.lnode));
list_add_tail_rcu(&aux->ksym.lnode, &bpf_kallsyms);
- latch_tree_insert(&aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
latch_tree_insert(&aux->ksym.tnode, &bpf_ksym_tree, &bpf_ksym_tree_ops);
}
@@ -661,7 +660,6 @@ static void bpf_prog_ksym_node_del(struct bpf_prog_aux *aux)
if (list_empty(&aux->ksym.lnode))
return;
- latch_tree_erase(&aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
latch_tree_erase(&aux->ksym.tnode, &bpf_ksym_tree, &bpf_ksym_tree_ops);
list_del_rcu(&aux->ksym.lnode);
}
@@ -687,6 +685,7 @@ void bpf_prog_kallsyms_add(struct bpf_prog *fp)
bpf_get_prog_name(fp);
spin_lock_bh(&bpf_lock);
+ latch_tree_insert(&fp->aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
bpf_prog_ksym_node_add(fp->aux);
spin_unlock_bh(&bpf_lock);
}
@@ -697,6 +696,7 @@ void bpf_prog_kallsyms_del(struct bpf_prog *fp)
return;
spin_lock_bh(&bpf_lock);
+ latch_tree_erase(&fp->aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
bpf_prog_ksym_node_del(fp->aux);
spin_unlock_bh(&bpf_lock);
}
--
2.24.1
next prev parent reply other threads:[~2020-02-16 19:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-16 19:29 [PATCHv2 00/18] bpf: Add trampoline and dispatcher to /proc/kallsyms Jiri Olsa
2020-02-16 19:29 ` [PATCH 01/18] x86/mm: Rename is_kernel_text to __is_kernel_text Jiri Olsa
2020-02-16 19:29 ` [PATCH 02/18] bpf: Add bpf_trampoline_ name prefix for DECLARE_BPF_DISPATCHER Jiri Olsa
2020-02-16 19:29 ` [PATCH 03/18] bpf: Add struct bpf_ksym Jiri Olsa
2020-02-18 23:03 ` Daniel Borkmann
2020-02-19 9:17 ` Jiri Olsa
2020-02-16 19:29 ` [PATCH 04/18] bpf: Add name to " Jiri Olsa
2020-02-16 19:29 ` [PATCH 05/18] bpf: Add lnode list node " Jiri Olsa
2020-02-16 19:29 ` [PATCH 06/18] bpf: Add bpf_ksym_tree tree Jiri Olsa
2020-02-18 22:34 ` Daniel Borkmann
2020-02-19 8:41 ` Jiri Olsa
2020-02-16 19:29 ` Jiri Olsa [this message]
2020-02-16 19:29 ` [PATCH 08/18] bpf: Separate kallsyms add/del functions Jiri Olsa
2020-02-16 19:29 ` [PATCH 09/18] bpf: Add bpf_ksym_add/del functions Jiri Olsa
2020-02-16 19:29 ` [PATCH 10/18] bpf: Re-initialize lnode in bpf_ksym_del Jiri Olsa
2020-02-16 19:29 ` [PATCH 11/18] bpf: Rename bpf_tree to bpf_progs_tree Jiri Olsa
2020-02-16 19:29 ` [PATCH 12/18] bpf: Add trampolines to kallsyms Jiri Olsa
2020-02-16 19:30 ` [PATCH 13/18] bpf: Return error value in bpf_dispatcher_update Jiri Olsa
2020-02-16 19:30 ` [PATCH 14/18] bpf: Add dispatchers to kallsyms Jiri Olsa
2020-02-16 19:30 ` [PATCH 15/18] bpf: Sort bpf kallsyms symbols Jiri Olsa
2020-02-18 23:18 ` Alexei Starovoitov
2020-02-19 8:30 ` Jiri Olsa
2020-02-16 19:30 ` [PATCH 16/18] perf tools: Synthesize bpf_trampoline/dispatcher ksymbol event Jiri Olsa
2020-02-16 19:30 ` [PATCH 17/18] perf tools: Set ksymbol dso as loaded on arrival Jiri Olsa
2020-02-16 19:30 ` [PATCH 18/18] perf annotate: Add base support for bpf_image Jiri Olsa
2020-02-26 13:03 [PATCHv3 00/18] bpf: Add trampoline and dispatcher to /proc/kallsyms Jiri Olsa
2020-02-26 13:03 ` [PATCH 07/18] bpf: Move bpf_tree add/del from bpf_prog_ksym_node_add/del Jiri Olsa
2020-02-26 23:12 ` Song Liu
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