Linux: overhaul memory partition

Use similar calculation than procps.
Show AvailableMemory in text mode.
Use total minus available memory instead of manually computed used-
memory as fraction part in bar mode (if available).

1 files changed, 5 insertions, 8 deletions

diff --git a/linux/Platform.c b/linux/Platform.c
index 80b276ef..83c62d32 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -283,14 +283,11 @@ void Platform_setMemoryValues(Meter* this) {
    const ProcessList* pl = this->pl;
    const LinuxProcessList* lpl = (const LinuxProcessList*) pl;
 
-   long int usedMem = pl->usedMem;
-   long int buffersMem = pl->buffersMem;
-   long int cachedMem = pl->cachedMem;
-   usedMem -= buffersMem + cachedMem + lpl->totalHugePageMem;
-   this->total = pl->totalMem - lpl->totalHugePageMem;
-   this->values[0] = usedMem;
-   this->values[1] = buffersMem;
-   this->values[2] = cachedMem;
+   this->total     = pl->totalMem;
+   this->values[0] = pl->usedMem;
+   this->values[1] = pl->buffersMem;
+   this->values[2] = pl->cachedMem;
+   this->values[3] = pl->availableMem;
 
    if (lpl->zfs.enabled != 0) {
       this->values[0] -= lpl->zfs.size;