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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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30 lines
730 B
C
30 lines
730 B
C
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/* SPDX-License-Identifier: LGPL-2.1 */
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#include "util/debug.h"
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#include "util/rlimit.h"
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#include <sys/time.h>
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#include <sys/resource.h>
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/*
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* Bump the memlock so that we can get bpf maps of a reasonable size,
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* like the ones used with 'perf trace' and with 'perf test bpf',
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* improve this to some specific request if needed.
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*/
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void rlimit__bump_memlock(void)
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{
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struct rlimit rlim;
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if (getrlimit(RLIMIT_MEMLOCK, &rlim) == 0) {
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rlim.rlim_cur *= 4;
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rlim.rlim_max *= 4;
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if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0) {
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rlim.rlim_cur /= 2;
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rlim.rlim_max /= 2;
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if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0)
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pr_debug("Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc\n");
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}
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}
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}
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