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multiply page size after float64 coercion to avoid signed integer overflow (#780)

This commit is contained in:
Nick Owens 2018-01-08 06:36:49 -08:00 committed by Ben Kochie
parent d432f9857e
commit 0629a081db
1 changed files with 11 additions and 11 deletions
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22
collector/meminfo_openbsd.go
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@ -47,19 +47,19 @@ func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
return nil, fmt.Errorf("sysctl CTL_VM VM_UVMEXP failed: %v", err)
}
ps := uvmexp.pagesize
ps := float64(uvmexp.pagesize)
// see uvm(9)
return map[string]float64{
"active_bytes": float64(ps * uvmexp.active),
"cache_bytes": float64(ps * uvmexp.vnodepages),
"free_bytes": float64(ps * uvmexp.free),
"inactive_bytes": float64(ps * uvmexp.inactive),
"size_bytes": float64(ps * uvmexp.npages),
"swap_size_bytes": float64(ps * uvmexp.swpages),
"swap_used_bytes": float64(ps * uvmexp.swpgonly),
"swapped_in_pages_bytes_total": float64(ps * uvmexp.pgswapin),
"swapped_out_pages_bytes_total": float64(ps * uvmexp.pgswapout),
"wired_bytes": float64(ps * uvmexp.wired),
"active_bytes": ps * float64(uvmexp.active),
"cache_bytes": ps * float64(uvmexp.vnodepages),
"free_bytes": ps * float64(uvmexp.free),
"inactive_bytes": ps * float64(uvmexp.inactive),
"size_bytes": ps * float64(uvmexp.npages),
"swap_size_bytes": ps * float64(uvmexp.swpages),
"swap_used_bytes": ps * float64(uvmexp.swpgonly),
"swapped_in_pages_bytes_total": ps * float64(uvmexp.pgswapin),
"swapped_out_pages_bytes_total": ps * float64(uvmexp.pgswapout),
"wired_bytes": ps * float64(uvmexp.wired),
}, nil
}