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Differential D32066

LinuxKPI: allocate current before taking shrinkers lock
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Authored by wulf on Sep 23 2021, 12:39 AM.
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Details

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• hselasky
manu
Commits
rGc1daa6fa4ca5: LinuxKPI: allocate current before taking shrinkers lock
rG2fe9ea5d3ad6: LinuxKPI: allocate current before taking shrinkers lock
Summary

This fixes following warnings when shrinkers are invoked first time:

uma_zalloc_debug: zone "lkpicurr" with the following non-sleepable
locks held: exclusive sleep mutex lkpi-shrinker (lkpi-shrinker)

uma_zalloc_debug: zone "lkpimm" with the following non-sleepable locks
held: exclusive sleep mutex lkpi-shrinker (lkpi-shrinker)

Test Plan

Run drm-kmod in low-memory conditions

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Repository
rG FreeBSD src repository
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sys/
compat/
linuxkpi/
common/
src/
2 lines

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sys/compat/linuxkpi/common/src/linux_shrinker.c

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