Messages in this thread |  | | Date | Fri, 30 Jul 2021 15:15:41 +0200 | From | Karel Zak <> | Subject | Re: [PATCH v4] mm: Enable suspend-only swap spaces |
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On Mon, Jul 26, 2021 at 05:12:46PM -0700, Evan Green wrote: > Swap regions with SWAP_FLAG_HIBERNATE_ONLY set will not appear in > /proc/meminfo under SwapTotal and SwapFree, since they are not usable as > general swap. These regions do still appear in /proc/swaps.
Off-topic, /proc/swaps is in the same situation like /proc/mounts years ago ...
It does not provide all important information like SWAP_FLAG_DISCARD_PAGES SWAP_FLAG_DISCARD_ONCE and SWAP_FLAG_HIBERNATE_ONLY flags.
Users will not able to differentiate between regular and hibernate-only devices in "swapon" or "cat /proc/swaps" output ;-(
It would be nice to have /proc/swapsinfo with extendible "flags" column.
Karel
-- Karel Zak <kzak@redhat.com> http://karelzak.blogspot.com
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