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fix bpf programs with useless attach

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This commit is contained in:
yunwei37
2022-12-06 16:10:45 +08:00
parent 0fd76b02b8
commit c572e7f511
29 changed files with 183 additions and 760 deletions
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31
9-runqlat/bits.bpf copy.h
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@@ -1,31 +0,0 @@
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __BITS_BPF_H
#define __BITS_BPF_H
#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
#define WRITE_ONCE(x, val) ((*(volatile typeof(x) *)&(x)) = val)
static __always_inline u64 log2(u32 v)
{
u32 shift, r;
r = (v > 0xFFFF) << 4; v >>= r;
shift = (v > 0xFF) << 3; v >>= shift; r |= shift;
shift = (v > 0xF) << 2; v >>= shift; r |= shift;
shift = (v > 0x3) << 1; v >>= shift; r |= shift;
r |= (v >> 1);
return r;
}
static __always_inline u64 log2l(u64 v)
{
u32 hi = v >> 32;
if (hi)
return log2(hi) + 32;
else
return log2(v);
}
#endif /* __BITS_BPF_H */

26
9-runqlat/maps.bpf copy.h
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@@ -1,26 +0,0 @@
// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
// Copyright (c) 2020 Anton Protopopov
#ifndef __MAPS_BPF_H
#define __MAPS_BPF_H
#include <bpf/bpf_helpers.h>
#include <asm-generic/errno.h>
static __always_inline void *
bpf_map_lookup_or_try_init(void *map, const void *key, const void *init)
{
void *val;
long err;
val = bpf_map_lookup_elem(map, key);
if (val)
return val;
err = bpf_map_update_elem(map, key, init, BPF_NOEXIST);
if (err && err != -EEXIST)
return 0;
return bpf_map_lookup_elem(map, key);
}
#endif /* __MAPS_BPF_H */