linux-kernel - Re: [PATCH v4 0/3] zram: Replace bit spinlocks with a spinlock

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Message-Id: <172563428176.173362.6692138069455842459.b4-ty@kernel.dk>
Date: Fri, 06 Sep 2024 08:51:21 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Mike Galbraith <umgwanakikbuti@...il.com>, 
 Minchan Kim <minchan@...nel.org>, 
 Sergey Senozhatsky <senozhatsky@...omium.org>, 
 Thomas Gleixner <tglx@...utronix.de>, 
 Alexander Lobakin <aleksander.lobakin@...el.com>
Subject: Re: [PATCH v4 0/3] zram: Replace bit spinlocks with a spinlock_t.

On Fri, 06 Sep 2024 16:14:42 +0200, Sebastian Andrzej Siewior wrote:
> this is follow up to the previous posting, making the lock
> unconditionally. The original problem with bit spinlock is that it
> disabled preemption and the following operations (within the atomic
> section) perform operations that may sleep on PREEMPT_RT. Mike expressed
> that he would like to keep using zram on PREEMPT_RT.
> 
> v3…v4: https://lore.kernel.org/linux-block/20240705125058.1564001-1-bigeasy@linutronix.de
>   - Inline lock init into zram_meta_alloc().
> 
> [...]

Applied, thanks!

[1/3] zram: Replace bit spinlocks with a spinlock_t.
      commit: 9518e5bfaae19447d657983d0628062ab6712610
[2/3] zram: Remove ZRAM_LOCK
      commit: 6086aeb49e3d9e25165769b2a0a13ff67f98a1a2
[3/3] zram: Shrink zram_table_entry::flags.
      commit: 68d20eb60efbdc80662efedeb088353e9c4aa17f

Best regards,
-- 
Jens Axboe