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fix(bpf): fix rss_stat being an array and not a struct #78

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merged 4 commits into from
Jun 6, 2024
Merged

fix(bpf): fix rss_stat being an array and not a struct #78

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47b558e
fix(bpf): fix rss_stat being an array and not a struct
Molter73 Jun 3, 2024
ab58aa7
Revert "fix(bpf): fix rss_stat being an array and not a struct"
Molter73 Jun 3, 2024
7e49041
Apply fix specifically for RHEL 9.4+
Molter73 Jun 3, 2024
3d097e2
Fix condition
Molter73 Jun 3, 2024
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6 changes: 3 additions & 3 deletions driver/bpf/fillers.h
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Original file line number Diff line number Diff line change
Expand Up @@ -858,10 +858,10 @@ static __always_inline unsigned long bpf_get_mm_counter(struct mm_struct *mm,
long val;

// See 6.2 kernel commit: https://github.com/torvalds/linux/commit/f1a7941243c102a44e8847e3b94ff4ff3ec56f25
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
bpf_probe_read_kernel(&val, sizeof(val), &mm->rss_stat.count[member]);
#else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 2, 0) || (PPM_RHEL_RELEASE_CODE > 0 && PPM_RHEL_RELEASE_CODE >= PPM_RHEL_RELEASE_VERSION(9, 4))
bpf_probe_read_kernel(&val, sizeof(val), &mm->rss_stat[member].count);
#else
bpf_probe_read_kernel(&val, sizeof(val), &mm->rss_stat.count[member]);
#endif
if (val < 0)
val = 0;
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