Check for fs.m == NULL in release_page().
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Authored by markj on Oct 22 2019, 11:39 PM.

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imp

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Reviewers

alc
kib

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rS353964: Modify release_page() to handle a missing fault page.

Summary

vm_fault_lock_vnode() may be called immediately after an object lookup
fails during a fault, in which case release_page() should have no
effect.

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Build Status

Buildable 27163
Build 25435: arc lint + arc unit

Event Timeline

markj created this revision.Oct 22 2019, 11:39 PM

Harbormaster completed remote builds in B27163: Diff 63562.Oct 22 2019, 11:39 PM

markj added reviewers: alc, kib.Oct 22 2019, 11:40 PM

markj added a subscriber: jhb.

kib accepted this revision.Oct 23 2019, 1:15 PM

This revision is now accepted and ready to land.Oct 23 2019, 1:15 PM

Closed by commit rS353964: Modify release_page() to handle a missing fault page. (authored by markj). · Explain WhyOct 23 2019, 8:39 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rS353964: Modify release_page() to handle a missing fault page..

Herald added a subscriber: imp. · View Herald TranscriptOct 23 2019, 8:39 PM

Revision Contents
Changeset List

Path

Size

sys/

vm/

vm_fault.c

12 lines

Diff 63562

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Check for fs.m == NULL in release_page().ClosedPublicActions