Am 15.04.2019 um 03:27 schrieb Rick Macklem:
Author: rmacklem
Date: Mon Apr 15 01:27:15 2019
New Revision: 346217
URL: https://svnweb.freebsd.org/changeset/base/346217
Log:
Fix the NFSv4 client to safely find processes.
r340744 broke the NFSv4 client, because it replaced pfind_locked() with a
call to pfind(), since pfind() acquires the sx lock for the pid hash and
the NFSv4 already holds a mutex when it does the call.
The patch fixes the problem by recreating a pfind_any_locked() and adding the
functions pidhash_slockall() and pidhash_sunlockall to acquire/release
all of the pid hash locks.
These functions are then used by the NFSv4 client instead of acquiring
the allproc_lock and calling pfind().
Reviewed by: kib, mjg
MFC after: 2 weeks
Hello, I guess as long as r340744 isn't MFCd, this commit isn't needed
in /stable/, is it?
Any plans to MFC
https://svnweb.freebsd.org/base?view=revision&revision=340744
(proc: convert pfind & friends to use pidhash locks and other cleanup)
Thanks,
-Harry
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