Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
From: Sebastian Siewior <bigeasy@xxxxxxxxxxxxx>
Date: Tue, 20 Aug 2019 19:16:40 +0200
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Anna-Maria Gleixner <anna-maria@xxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Julia Cartwright <julia@xxxxxx>, Jan Kara <jack@xxxxxxx>, Theodore Tso <tytso@xxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, Jan Kara <jack@xxxxxxxx>, Mark Fasheh <mark@xxxxxxxxxx>, Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>, Joel Becker <jlbec@xxxxxxxxxxxx>
In-reply-to: <20190810081834.GB30426@infradead.org>
User-agent: NeoMutt/20180716

On 2019-08-10 01:18:34 [-0700], Christoph Hellwig wrote:
> > > Does SLUB work on -rt at all?
> > 
> > It's the only allocator we support with a few tweaks :)
> 
> What do you do about this particular piece of code there?

This part remains untouched. This "lock" is acquired within ->list_lock
which is a raw_spinlock_t and disables preemption/interrupts on -RT.

Sebastian

References:
- [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Thomas Gleixner
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Christoph Hellwig
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Thomas Gleixner
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Christoph Hellwig
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Thomas Gleixner
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Christoph Hellwig
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Thomas Gleixner
- Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
  - From: Christoph Hellwig

Prev by Date: [PATCH] fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
Next by Date: Re: [PATCH] fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
Previous by thread: Re: [patch V2 0/7] fs: Substitute bit-spinlocks for PREEMPT_RT and debugging
Next by thread: [RFC] [PATCH 00/24] mm, xfs: non-blocking inode reclaim
Index(es):
- Date
- Thread

[Index of Archives] [Linux Ext4 Filesystem] [Union Filesystem] [Filesystem Testing] [Ceph Users] [Ecryptfs] [AutoFS] [Kernel Newbies] [Share Photos] [Security] [Netfilter] [Bugtraq] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux Cachefs] [Reiser Filesystem] [Linux RAID] [Samba] [Device Mapper] [CEPH Development]