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Message-ID: <20250815061824.765906-4-dongml2@chinatelecom.cn> Date: Fri, 15 Aug 2025 14:18:20 +0800 From: Menglong Dong <menglong8.dong@...il.com> To: ast@...nel.org Cc: daniel@...earbox.net, john.fastabend@...il.com, andrii@...nel.org, martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org, yonghong.song@...ux.dev, kpsingh@...nel.org, sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org, bpf@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH bpf-next 3/7] bpf: use rcu_migrate_* for bpf_inode_storage_free() Replace the migrate_disable/migrate_enable with rcu_migrate_disable/rcu_migrate_enable in bpf_inode_storage_free to obtain better performance when PREEMPT_RCU is not enabled. Signed-off-by: Menglong Dong <dongml2@...natelecom.cn> --- kernel/bpf/bpf_inode_storage.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c index 15a3eb9b02d9..548530feb4da 100644 --- a/kernel/bpf/bpf_inode_storage.c +++ b/kernel/bpf/bpf_inode_storage.c @@ -62,7 +62,7 @@ void bpf_inode_storage_free(struct inode *inode) if (!bsb) return; - migrate_disable(); + rcu_migrate_disable(); rcu_read_lock(); local_storage = rcu_dereference(bsb->storage); @@ -72,7 +72,7 @@ void bpf_inode_storage_free(struct inode *inode) bpf_local_storage_destroy(local_storage); out: rcu_read_unlock(); - migrate_enable(); + rcu_migrate_enable(); } static void *bpf_fd_inode_storage_lookup_elem(struct bpf_map *map, void *key) -- 2.50.1
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