From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: bpf@vger.kernel.org
Cc: andrii@kernel.org, memxor@gmail.com, akpm@linux-foundation.org,
peterz@infradead.org, vbabka@suse.cz, bigeasy@linutronix.de,
rostedt@goodmis.org, houtao1@huawei.com, hannes@cmpxchg.org,
shakeel.butt@linux.dev, mhocko@suse.com, willy@infradead.org,
tglx@linutronix.de, jannh@google.com, tj@kernel.org,
linux-mm@kvack.org, kernel-team@fb.com
Subject: [PATCH bpf-next v5 7/7] bpf: Use try_alloc_pages() to allocate pages for bpf needs.
Date: Tue, 14 Jan 2025 18:17:46 -0800 [thread overview]
Message-ID: <20250115021746.34691-8-alexei.starovoitov@gmail.com> (raw)
In-Reply-To: <20250115021746.34691-1-alexei.starovoitov@gmail.com>
From: Alexei Starovoitov <ast@kernel.org>
Use try_alloc_pages() and free_pages_nolock()
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
kernel/bpf/syscall.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 0daf098e3207..8bcf48e31a5a 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -582,14 +582,14 @@ int bpf_map_alloc_pages(const struct bpf_map *map, gfp_t gfp, int nid,
old_memcg = set_active_memcg(memcg);
#endif
for (i = 0; i < nr_pages; i++) {
- pg = alloc_pages_node(nid, gfp | __GFP_ACCOUNT, 0);
+ pg = try_alloc_pages(nid, 0);
if (pg) {
pages[i] = pg;
continue;
}
for (j = 0; j < i; j++)
- __free_page(pages[j]);
+ free_pages_nolock(pages[j], 0);
ret = -ENOMEM;
break;
}
--
2.43.5
next prev parent reply other threads:[~2025-01-15 2:18 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-15 2:17 [PATCH bpf-next v5 0/7] bpf, mm: Introduce try_alloc_pages() Alexei Starovoitov
2025-01-15 2:17 ` [PATCH bpf-next v5 1/7] mm, bpf: Introduce try_alloc_pages() for opportunistic page allocation Alexei Starovoitov
2025-01-15 11:19 ` Vlastimil Babka
2025-01-15 23:00 ` Alexei Starovoitov
2025-01-15 23:47 ` Shakeel Butt
2025-01-16 2:44 ` Alexei Starovoitov
2025-01-15 23:16 ` Shakeel Butt
2025-01-17 18:19 ` Sebastian Andrzej Siewior
2025-01-15 2:17 ` [PATCH bpf-next v5 2/7] mm, bpf: Introduce free_pages_nolock() Alexei Starovoitov
2025-01-15 11:47 ` Vlastimil Babka
2025-01-15 23:15 ` Alexei Starovoitov
2025-01-16 8:31 ` Vlastimil Babka
2025-01-17 18:20 ` Sebastian Andrzej Siewior
2025-01-15 2:17 ` [PATCH bpf-next v5 3/7] locking/local_lock: Introduce local_trylock_irqsave() Alexei Starovoitov
2025-01-15 2:23 ` Alexei Starovoitov
2025-01-15 7:22 ` Sebastian Sewior
2025-01-15 14:22 ` Vlastimil Babka
2025-01-16 2:20 ` Alexei Starovoitov
2025-01-17 20:33 ` Sebastian Andrzej Siewior
2025-01-21 15:59 ` Vlastimil Babka
2025-01-21 16:43 ` Sebastian Andrzej Siewior
2025-01-22 1:35 ` Alexei Starovoitov
2025-01-15 2:17 ` [PATCH bpf-next v5 4/7] memcg: Use trylock to access memcg stock_lock Alexei Starovoitov
2025-01-15 16:07 ` Vlastimil Babka
2025-01-16 0:12 ` Shakeel Butt
2025-01-16 2:22 ` Alexei Starovoitov
2025-01-16 20:07 ` Joshua Hahn
2025-01-17 17:36 ` Johannes Weiner
2025-01-15 2:17 ` [PATCH bpf-next v5 5/7] mm, bpf: Use memcg in try_alloc_pages() Alexei Starovoitov
2025-01-15 17:51 ` Vlastimil Babka
2025-01-16 0:24 ` Shakeel Butt
2025-01-15 2:17 ` [PATCH bpf-next v5 6/7] mm: Make failslab, kfence, kmemleak aware of trylock mode Alexei Starovoitov
2025-01-15 17:57 ` Vlastimil Babka
2025-01-16 2:23 ` Alexei Starovoitov
2025-01-15 2:17 ` Alexei Starovoitov [this message]
2025-01-15 18:02 ` [PATCH bpf-next v5 7/7] bpf: Use try_alloc_pages() to allocate pages for bpf needs Vlastimil Babka
2025-01-16 2:25 ` Alexei Starovoitov
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