git: 6e1d1bfcac77 - main - jail: Improve locking when removing prisons

[James Gritton]

On 2021-03-12 02:01, Harry Schmalzbauer wrote:
> Am 20.02.2021 um 23:42 schrieb Jamie Gritton:
>> The branch main has been updated by jamie:
>> 
>> URL: 
>> https://cgit.FreeBSD.org/src/commit/?id=6e1d1bfcac77603541706807803a198c6d954d7c
>> 
>> commit 6e1d1bfcac77603541706807803a198c6d954d7c
>> Author:     Jamie Gritton <jamie at FreeBSD.org>
>> AuthorDate: 2021-02-20 22:38:58 +0000
>> Commit:     Jamie Gritton <jamie at FreeBSD.org>
>> CommitDate: 2021-02-20 22:38:58 +0000
>> 
>>      jail: Improve locking when removing prisons
>>           Change the flow of prison_deref() so it doesn't let go of 
>> allprison_lock
>>      until it's completely done using it (except for a possible drop 
>> as part
>>      of an upgrade on its first try).
>>           Differential Revision:  https://reviews.freebsd.org/D28458
>>      MFC after:      3 days
>> ---
>>   sys/kern/kern_jail.c | 69 
>> +++++++++++++++++++++++++++++++---------------------
>>   1 file changed, 41 insertions(+), 28 deletions(-)
> 
> Hello,
> 
> do you still plan to MFC this?  It seems there's a bunch of locking
> related rework not MFC yet, but this one had the MFC tag in the commit
> log, so I guess it's a more important fix.

Yes, still plan to, and in fact I will.  I let the MFC reminder slip
past me, and once 13.0 was solidified allowed it to stay slipped.
I'll MFC many of the
other changes as well.

- Jamie