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Diffstat (limited to 'kernel/bpf/hashtab.c')
-rw-r--r--kernel/bpf/hashtab.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 15bf228d2e98..b0bdc7b040ad 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -364,10 +364,9 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
364 /* make sure page count doesn't overflow */ 364 /* make sure page count doesn't overflow */
365 goto free_htab; 365 goto free_htab;
366 366
367 htab->map.memory.pages = round_up(cost, PAGE_SIZE) >> PAGE_SHIFT; 367 /* if map size is larger than memlock limit, reject it */
368 368 err = bpf_map_charge_init(&htab->map.memory,
369 /* if map size is larger than memlock limit, reject it early */ 369 round_up(cost, PAGE_SIZE) >> PAGE_SHIFT);
370 err = bpf_map_precharge_memlock(htab->map.memory.pages);
371 if (err) 370 if (err)
372 goto free_htab; 371 goto free_htab;
373 372
@@ -376,7 +375,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
376 sizeof(struct bucket), 375 sizeof(struct bucket),
377 htab->map.numa_node); 376 htab->map.numa_node);
378 if (!htab->buckets) 377 if (!htab->buckets)
379 goto free_htab; 378 goto free_charge;
380 379
381 if (htab->map.map_flags & BPF_F_ZERO_SEED) 380 if (htab->map.map_flags & BPF_F_ZERO_SEED)
382 htab->hashrnd = 0; 381 htab->hashrnd = 0;
@@ -409,6 +408,8 @@ free_prealloc:
409 prealloc_destroy(htab); 408 prealloc_destroy(htab);
410free_buckets: 409free_buckets:
411 bpf_map_area_free(htab->buckets); 410 bpf_map_area_free(htab->buckets);
411free_charge:
412 bpf_map_charge_finish(&htab->map.memory);
412free_htab: 413free_htab:
413 kfree(htab); 414 kfree(htab);
414 return ERR_PTR(err); 415 return ERR_PTR(err);