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sys: cope with unavailable KSM sharing info

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2023-02-02 16:12:15 +01:00
parent 2cebe420c1
commit ce389914ff
1 changed files with 5 additions and 2 deletions
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7
proxmox-sys/src/linux/procfs/mod.rs
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@ -455,8 +455,11 @@ pub fn read_meminfo() -> Result<ProcFsMemInfo, Error> {
meminfo.swapused = meminfo.swaptotal - meminfo.swapfree;
let spages_line = file_read_firstline("/sys/kernel/mm/ksm/pages_sharing")?;
meminfo.memshared = spages_line.trim_end().parse::<u64>()? * 4096;
meminfo.memshared = match file_read_firstline("/sys/kernel/mm/ksm/pages_sharing") {
Ok(spages_line) => spages_line.trim_end().parse::<u64>()? * 4096,
Err(err) if err.kind() == std::io::ErrorKind::NotFound => 0,
Err(err) => return Err(err),
};
Ok(meminfo)
}