Page MenuHomeFreeBSD
Differential D7112

hyperv/vmbus: Fix the racy channel close.
ClosedPublic
Actions

Authored by sepherosa_gmail.com on Jul 5 2016, 3:16 PM.
Tags
None
Referenced Files
Unknown Object (File)
Wed, Mar 12, 11:03 AM
Unknown Object (File)
Feb 24 2025, 10:27 PM
Unknown Object (File)
Feb 13 2025, 8:39 AM
Unknown Object (File)
Feb 12 2025, 12:05 PM
Unknown Object (File)
Feb 6 2025, 4:20 AM
Unknown Object (File)
Jan 29 2025, 8:21 PM
Unknown Object (File)
Dec 30 2024, 9:41 PM
Unknown Object (File)
Dec 29 2024, 6:08 AM
View All 63 Files
Subscribers
None

Details

Reviewers
howard0su_gmail.com
honzhan_microsoft.com
decui_microsoft.com
delphij
royger
Commits
rS302818: hyperv/vmbus: Fix the racy channel close.
Summary
It is not safe to iterate the sub-channel list w/o lock on the
close path, while it's even more difficult to hold the lock
and iterate the sub-channel list.  We leverage the
vmbua_{get,rel}_subchan() functions to solve this dilemma.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

sepherosa_gmail.com updated this revision to Diff 18150.Jul 5 2016, 3:16 PM
sepherosa_gmail.com retitled this revision from to hyperv/vmbus: Fix the racy channel close..
sepherosa_gmail.com updated this object.
sepherosa_gmail.com edited the test plan for this revision. (Show Details)
sepherosa_gmail.com added reviewers: delphij, royger, decui_microsoft.com, honzhan_microsoft.com, howard0su_gmail.com.
Closed by commit rS302818: hyperv/vmbus: Fix the racy channel close. (authored by sephe). · Explain WhyJul 14 2016, 7:59 AM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathSize
head/
sys/
dev/
hyperv/
vmbus/
39 lines

Diff 18417

View Options

head/sys/dev/hyperv/vmbus/hv_channel.c

Loading...