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bpf: Remove migrate_{disable|enable} from bpf_local_storage_alloc()

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These two callers of bpf_local_storage_alloc() are the same as
bpf_selem_alloc(): bpf_sk_storage_clone() and
bpf_local_storage_update(). The running contexts of these two callers
have already disabled migration, therefore, there is no need to add
extra migrate_{disable|enable} pair in bpf_local_storage_alloc().

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20250108010728.207536-15-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Hou Tao
2025-01-08 09:07:26 +08:00
committed by Alexei Starovoitov
parent 2269b32ab0
commit 4855a75ebf
1 changed files with 2 additions and 6 deletions
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8
kernel/bpf/bpf_local_storage.c
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@@ -498,15 +498,11 @@ int bpf_local_storage_alloc(void *owner,
if (err)
return err;
if (smap->bpf_ma) {
migrate_disable();
if (smap->bpf_ma)
storage = bpf_mem_cache_alloc_flags(&smap->storage_ma, gfp_flags);
migrate_enable();
} else {
else
storage = bpf_map_kzalloc(&smap->map, sizeof(*storage),
gfp_flags | __GFP_NOWARN);
}
if (!storage) {
err = -ENOMEM;
goto uncharge;