ktrace: Remove vrele() at the end of ktr_writerequest()
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Authored by markj on May 23 2021, 5:24 PM.

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rG6f6cd1e8e8aa: ktrace: Remove vrele() at the end of ktr_writerequest()

Summary

As of commit fc369a353 we no longer ref the vnode when writing a record.
Drop the corresponding vrele() call in the error case.

Fixes: fc369a353 ("ktrace: fix a race between writes and close")
Reported by: syzbot+9b96ea7a5ff8917d3fe4@syzkaller.appspotmail.com
Reported by: syzbot+6120ebbb354cd52e5107@syzkaller.appspotmail.com
MFC after: 6 days

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rG FreeBSD src repository

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Event Timeline

markj created this revision.May 23 2021, 5:24 PM

Herald added a subscriber: imp. · View Herald TranscriptMay 23 2021, 5:24 PM

markj requested review of this revision.May 23 2021, 5:24 PM

Harbormaster completed remote builds in B39361: Diff 89693.May 23 2021, 5:24 PM

kib accepted this revision.May 23 2021, 5:42 PM

This revision is now accepted and ready to land.May 23 2021, 5:42 PM

Closed by commit rG6f6cd1e8e8aa: ktrace: Remove vrele() at the end of ktr_writerequest() (authored by markj). · Explain WhyMay 23 2021, 6:14 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG6f6cd1e8e8aa: ktrace: Remove vrele() at the end of ktr_writerequest().

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sys/

kern/

kern_ktrace.c

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Diff 89696

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ktrace: Remove vrele() at the end of ktr_writerequest()ClosedPublicActions