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Differential D21013

Correct two errors in managing PGA_WRITEABLE
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Authored by alc on Jul 21 2019, 3:57 PM.
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rS350202: With the introduction of software dirty bit emulation for managed mappings,
Summary

With the introduction of software dirty bit emulation for managed mappings, we should test ATTR_SW_DBM, not ATTR_AP_RW, to determine whether to set PGA_WRITEABLE. At present, we are are setting PGA_WRITEABLE based on whether the dirty bit is preset, not whether the mapping is writeable.

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rS FreeBSD src repository - subversion
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head/
sys/
arm64/
arm64/
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head/sys/arm64/arm64/pmap.c

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