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Differential D23692

powerpc/booke: Fix locking in ptbl_alloc()
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Authored by jhibbits on Feb 15 2020, 4:15 AM.
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bdragon
nwhitehorn
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PowerPC
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rS358234: powerpc/booke: Fix handling of pvh_global_lock and pmap lock
Summary

ptbl_alloc() is expected to return with the pvh_global_lock and pmap
lock held. However, it will return with them unlocked if nosleep is
specified.

Along with this, fix lock ordering of pvh_global_lock with respect to
the pmap lock in other places.

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Build Status
Buildable 29396
Build 27283: arc lint + arc unit

Event Timeline

jhibbits created this revision.Feb 15 2020, 4:15 AM
Harbormaster completed remote builds in B29396: Diff 68347.Feb 15 2020, 4:15 AM
This revision was not accepted when it landed; it landed in state Needs Review.Feb 22 2020, 1:31 AM
Closed by commit rS358234: powerpc/booke: Fix handling of pvh_global_lock and pmap lock (authored by jhibbits). · Explain Why
This revision was automatically updated to reflect the committed changes.
jhibbits added a commit: rS358234: powerpc/booke: Fix handling of pvh_global_lock and pmap lock.
Herald added a subscriber: imp. · View Herald TranscriptFeb 22 2020, 1:31 AM

Revision Contents
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sys/
powerpc/
booke/
13 lines

Diff 68347

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sys/powerpc/booke/pmap.c

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