** Changed in: linux (Ubuntu Disco)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1842059
Title:
shiftfs: mark kmem_cache as reclaimable
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Disco:
Fix Committed
Bug description:
SRU Justification
Impact: Shiftfs does not mark it's slab cache as reclaimable. While
this is not a big deal it is not nice to the kernel in general. The
shiftfs cache is not so important that it can't be reclaimed.
Regression Potential: Limited to shiftfs. This patch has been tested
for multiple days and has not caused any regressions.
Test Case:
Open a lot of files in shiftfs to get them into the cache and then cause
memory pressure via e.g. stress-ng and see if the shiftfs cache shrinks.
Target Kernels: All LTS kernels with shiftfs support.
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