Commits on Oct 3, 2023

1. proc: fix MemAvailable in /proc/meminfo to exclude tmpfs files …

   The "total_cache" from memory.stat of cgroup includes
   the memory used by tmpfs files ("total_shmem"). Considering
   it as available memory is wrong because files created
   on a tmpfs file system cannot be simply reclaimed.
   
   So the available memory is calculated with the sum of:
    * Memory the kernel knows is free
    * Memory that contained in the kernel active file LRU,
      that can be reclaimed if necessary
    * Memory that is contained in the kernel non-active file
      LRU, that can be reclaimed if necessary
   
   Signed-off-by: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>

   

   kyeongy committed Oct 3, 2023
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