From: Christoph Hellwig <hch@infradead.org>
To: Nick Piggin <npiggin@kernel.dk>
Cc: Dave Chinner <david@fromorbit.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 17/18] fs: icache remove inode_lock
Date: Wed, 13 Oct 2010 07:28:27 -0400 [thread overview]
Message-ID: <20101013112827.GC16422@infradead.org> (raw)
In-Reply-To: <20101013072701.GB3121@amd>
On Wed, Oct 13, 2010 at 06:27:01PM +1100, Nick Piggin wrote:
> I'm happy to help to port the top of the patch set onto changes in
> earlier parts of it, but I would like the chance to do this really. I'm
> back in action now, so I can spend a lot of time catching up.
That's all good and fine, but it's really no reason for delaying getting
the most important bits in. RCU path walk is all good and fine, and
I'm really looking forward to eventually see it. But the basic
inode_lock and dcache_lock splits are fundamental work we need rather
sooner than later. Additional candy ontop of that is fine but we'll
need a solid base. Also note that having the locking split up, and
proper exported APIs instead of growling into dcache internals in
various filesystems means that we can start to look into replacing
the global inode and dcache hashes much more easily, and having
global data structures at least for the dcache is almost as bad
as having global locks.
next prev parent reply other threads:[~2010-10-13 11:28 UTC|newest]
Thread overview: 162+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-08 5:21 fs: Inode cache scalability V2 Dave Chinner
2010-10-08 5:21 ` [PATCH 01/18] kernel: add bl_list Dave Chinner
2010-10-08 8:18 ` Andi Kleen
2010-10-08 10:33 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 02/18] fs: Convert nr_inodes and nr_unused to per-cpu counters Dave Chinner
2010-10-08 7:01 ` Christoph Hellwig
2010-10-08 5:21 ` [PATCH 03/18] fs: keep inode with backing-dev Dave Chinner
2010-10-08 7:01 ` Christoph Hellwig
2010-10-08 7:27 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 04/18] fs: Implement lazy LRU updates for inodes Dave Chinner
2010-10-08 7:08 ` Christoph Hellwig
2010-10-08 7:31 ` Dave Chinner
2010-10-08 9:08 ` Al Viro
2010-10-08 9:51 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 05/18] fs: inode split IO and LRU lists Dave Chinner
2010-10-08 7:14 ` Christoph Hellwig
2010-10-08 7:38 ` Dave Chinner
2010-10-08 9:16 ` Al Viro
2010-10-08 9:58 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 06/18] fs: Clean up inode reference counting Dave Chinner
2010-10-08 7:20 ` Christoph Hellwig
2010-10-08 7:46 ` Dave Chinner
2010-10-08 8:15 ` Christoph Hellwig
2010-10-08 5:21 ` [PATCH 07/18] exofs: use iput() for inode reference count decrements Dave Chinner
2010-10-08 7:21 ` Christoph Hellwig
2010-10-16 7:56 ` Nick Piggin
2010-10-16 16:29 ` Christoph Hellwig
2010-10-17 15:41 ` Boaz Harrosh
2010-10-08 5:21 ` [PATCH 08/18] fs: add inode reference coutn read accessor Dave Chinner
2010-10-08 7:24 ` Christoph Hellwig
2010-10-08 5:21 ` [PATCH 09/18] fs: rework icount to be a locked variable Dave Chinner
2010-10-08 7:27 ` Christoph Hellwig
2010-10-08 7:50 ` Dave Chinner
2010-10-08 8:17 ` Christoph Hellwig
2010-10-08 13:16 ` Chris Mason
2010-10-08 9:32 ` Al Viro
2010-10-08 10:15 ` Dave Chinner
2010-10-08 13:14 ` Chris Mason
2010-10-08 13:53 ` Christoph Hellwig
2010-10-08 14:09 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 10/18] fs: Factor inode hash operations into functions Dave Chinner
2010-10-08 7:29 ` Christoph Hellwig
2010-10-08 9:41 ` Al Viro
2010-10-08 5:21 ` [PATCH 11/18] fs: Introduce per-bucket inode hash locks Dave Chinner
2010-10-08 7:33 ` Christoph Hellwig
2010-10-08 7:51 ` Dave Chinner
2010-10-08 9:49 ` Al Viro
2010-10-08 9:51 ` Christoph Hellwig
2010-10-08 13:43 ` Christoph Hellwig
2010-10-08 14:17 ` Dave Chinner
2010-10-08 18:54 ` Christoph Hellwig
2010-10-16 7:57 ` Nick Piggin
2010-10-16 16:16 ` Christoph Hellwig
2010-10-16 17:12 ` Nick Piggin
2010-10-17 0:45 ` Christoph Hellwig
2010-10-17 2:06 ` Nick Piggin
2010-10-17 0:46 ` Dave Chinner
2010-10-17 2:25 ` Nick Piggin
2010-10-18 16:16 ` Andi Kleen
2010-10-18 16:21 ` Christoph Hellwig
2010-10-19 7:00 ` Nick Piggin
2010-10-19 16:50 ` Christoph Hellwig
2010-10-20 3:11 ` Nick Piggin
2010-10-24 15:44 ` Thomas Gleixner
2010-10-24 21:17 ` Nick Piggin
2010-10-25 4:41 ` Thomas Gleixner
2010-10-25 7:04 ` Thomas Gleixner
2010-10-26 0:12 ` Nick Piggin
2010-10-26 0:06 ` Nick Piggin
2010-10-08 5:21 ` [PATCH 12/18] fs: add a per-superblock lock for the inode list Dave Chinner
2010-10-08 7:35 ` Christoph Hellwig
2010-10-08 5:21 ` [PATCH 13/18] fs: split locking of inode writeback and LRU lists Dave Chinner
2010-10-08 7:42 ` Christoph Hellwig
2010-10-08 8:00 ` Dave Chinner
2010-10-08 8:18 ` Christoph Hellwig
2010-10-16 7:57 ` Nick Piggin
2010-10-16 16:20 ` Christoph Hellwig
2010-10-16 17:19 ` Nick Piggin
2010-10-17 1:00 ` Dave Chinner
2010-10-17 2:20 ` Nick Piggin
2010-10-08 5:21 ` [PATCH 14/18] fs: Protect inode->i_state with th einode->i_lock Dave Chinner
2010-10-08 7:49 ` Christoph Hellwig
2010-10-08 8:04 ` Dave Chinner
2010-10-08 8:18 ` Christoph Hellwig
2010-10-16 7:57 ` Nick Piggin
2010-10-16 16:19 ` Christoph Hellwig
2010-10-09 8:05 ` Christoph Hellwig
2010-10-09 14:52 ` Matthew Wilcox
2010-10-10 2:01 ` Dave Chinner
2010-10-08 5:21 ` [PATCH 15/18] fs: introduce a per-cpu last_ino allocator Dave Chinner
2010-10-08 7:53 ` Christoph Hellwig
2010-10-08 8:05 ` Dave Chinner
2010-10-08 8:22 ` Andi Kleen
2010-10-08 8:44 ` Christoph Hellwig
2010-10-08 9:58 ` Al Viro
2010-10-08 10:09 ` Andi Kleen
2010-10-08 10:19 ` Al Viro
2010-10-08 10:20 ` Eric Dumazet
2010-10-08 9:56 ` Al Viro
2010-10-08 10:03 ` Christoph Hellwig
2010-10-08 10:20 ` Eric Dumazet
2010-10-08 13:48 ` Christoph Hellwig
2010-10-08 14:06 ` Eric Dumazet
2010-10-08 19:10 ` Christoph Hellwig
2010-10-09 17:14 ` Matthew Wilcox
2010-10-16 7:57 ` Nick Piggin
2010-10-16 16:22 ` Christoph Hellwig
2010-10-16 17:21 ` Nick Piggin
2010-10-08 5:21 ` [PATCH 16/18] fs: Make iunique independent of inode_lock Dave Chinner
2010-10-08 7:55 ` Christoph Hellwig
2010-10-08 8:06 ` Dave Chinner
2010-10-08 8:19 ` Christoph Hellwig
2010-10-08 5:21 ` [PATCH 17/18] fs: icache remove inode_lock Dave Chinner
2010-10-08 8:03 ` Christoph Hellwig
2010-10-08 8:09 ` Dave Chinner
2010-10-13 7:20 ` Nick Piggin
2010-10-13 7:27 ` Nick Piggin
2010-10-13 11:28 ` Christoph Hellwig [this message]
2010-10-13 12:03 ` Nick Piggin
2010-10-13 12:20 ` Christoph Hellwig
2010-10-13 12:25 ` Nick Piggin
2010-10-13 10:42 ` Eric Dumazet
2010-10-13 12:07 ` Nick Piggin
2010-10-13 11:25 ` Christoph Hellwig
2010-10-13 12:30 ` Nick Piggin
2010-10-13 23:23 ` Dave Chinner
2010-10-14 9:06 ` Nick Piggin
2010-10-14 9:13 ` Nick Piggin
2010-10-14 14:41 ` Christoph Hellwig
2010-10-15 0:14 ` Nick Piggin
2010-10-15 3:13 ` Dave Chinner
2010-10-15 3:30 ` Nick Piggin
2010-10-15 3:44 ` Nick Piggin
2010-10-15 6:41 ` Nick Piggin
2010-10-15 10:59 ` Dave Chinner
2010-10-15 13:03 ` Nick Piggin
2010-10-15 13:29 ` Nick Piggin
2010-10-15 17:33 ` Nick Piggin
2010-10-15 17:52 ` Christoph Hellwig
2010-10-15 18:02 ` Nick Piggin
2010-10-15 18:14 ` Nick Piggin
2010-10-16 2:09 ` Nick Piggin
2010-10-15 14:11 ` Nick Piggin
2010-10-15 20:50 ` Nick Piggin
2010-10-15 20:56 ` Nick Piggin
2010-10-15 4:04 ` Nick Piggin
2010-10-15 11:33 ` Dave Chinner
2010-10-15 13:14 ` Nick Piggin
2010-10-15 15:38 ` Nick Piggin
2010-10-16 7:57 ` Nick Piggin
2010-10-08 5:21 ` [PATCH 18/18] fs: Reduce inode I_FREEING and factor inode disposal Dave Chinner
2010-10-08 8:11 ` Christoph Hellwig
2010-10-08 10:18 ` Al Viro
2010-10-08 10:52 ` Dave Chinner
2010-10-08 12:10 ` Al Viro
2010-10-08 13:55 ` Dave Chinner
2010-10-09 17:22 ` Matthew Wilcox
2010-10-09 8:08 ` [PATCH 19/18] fs: split __inode_add_to_list Christoph Hellwig
2010-10-12 10:47 ` Dave Chinner
2010-10-12 11:31 ` Christoph Hellwig
2010-10-12 12:05 ` Dave Chinner
2010-10-09 11:18 ` [PATCH 20/18] fs: do not assign default i_ino in new_inode Christoph Hellwig
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