netdev - Re: [PATCH net v2 0/2] Revert the 'socket

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Date:   Tue, 05 May 2020 11:48:25 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     sjpark@...zon.com
Cc:     viro@...iv.linux.org.uk, kuba@...nel.org,
        gregkh@...uxfoundation.org, edumazet@...gle.com,
        sj38.park@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, sjpark@...zon.de
Subject: Re: [PATCH net v2 0/2] Revert the 'socket_alloc' life cycle change

From: SeongJae Park <sjpark@...zon.com>
Date: Tue, 5 May 2020 10:10:33 +0200

> From: SeongJae Park <sjpark@...zon.de>
> 
> The commit 6d7855c54e1e ("sockfs: switch to ->free_inode()") made the
> deallocation of 'socket_alloc' to be done asynchronously using RCU, as
> same to 'sock.wq'.  And the following commit 333f7909a857 ("coallocate
> socket_sq with socket itself") made those to have same life cycle.
> 
> The changes made the code much more simple, but also made 'socket_alloc'
> live longer than before.  For the reason, user programs intensively
> repeating allocations and deallocations of sockets could cause memory
> pressure on recent kernels.
> 
> To avoid the problem, this commit reverts the changes.

Series applied and queued up for -stable, thanks.