From: Jan Kara <jack@suse.cz>
To: Josef Bacik <jbacik@fb.com>
Cc: linux-fsdevel@vger.kernel.org, david@fromorbit.com,
viro@zeniv.linux.org.uk, jack@suse.cz,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/9] Sync and VFS scalability improvements
Date: Mon, 16 Mar 2015 12:39:38 +0100 [thread overview]
Message-ID: <20150316113938.GH4934@quack.suse.cz> (raw)
In-Reply-To: <1426016724-23912-1-git-send-email-jbacik@fb.com>
On Tue 10-03-15 15:45:15, Josef Bacik wrote:
> These are patches that Dave Chinner wrote two years ago that are still very much
> needed today. I recently ran into a problem where I had millions of inodes that
> needed to be evicted at unmount time and it soft locked up the box and kept any
> other file system from doing work. These patches fix this problem by breaking
> the inode_sb_list_lock into per-sb, and then converting the per sb inode list
> into a list_lru for better scalability.
>
> I've also pulled forward Dave's sync scalability patches which still seem pretty
> relevant. I had to fix a couple of these to bring them forward but I touched
> very little and I've preserved the authorship of everything. I added the
> Reviewed-by's that were there when the patches were originally submitted. I've
> run this through xfstests on btrfs and xfs and verified that everything seems to
> be working. If you are interested the original submission can be found here
>
> http://lwn.net/Articles/561569/
>
> Finally the last patch is from me and this fixes the softlockup problems I was
> seeing on unmount with a large amount of inodes that needed to be evicted.
Just a general process note - when resending patches like this, you
should add your Signed-off-by. We know both you and Dave well so it's
mostly a cosmetic thing but it's better to do it anyway...
Honza
--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
next prev parent reply other threads:[~2015-03-16 11:39 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-10 19:45 [PATCH 0/9] Sync and VFS scalability improvements Josef Bacik
2015-03-10 19:45 ` [PATCH 1/9] writeback: plug writeback at a high level Josef Bacik
2015-03-10 19:45 ` [PATCH 2/9] inode: add IOP_NOTHASHED to avoid inode hash lock in evict Josef Bacik
2015-03-12 9:52 ` Al Viro
2015-03-12 12:18 ` [PATCH] inode: add hlist_fake to avoid the " Josef Bacik
2015-03-12 12:20 ` [PATCH] inode: add hlist_fake to avoid the inode hash lock in evict V2 Josef Bacik
2015-03-14 7:00 ` Jan Kara
2015-03-12 12:24 ` [PATCH 2/9] inode: add IOP_NOTHASHED to avoid inode hash lock in evict Josef Bacik
2015-03-10 19:45 ` [PATCH 3/9] inode: convert inode_sb_list_lock to per-sb Josef Bacik
2015-03-10 19:45 ` [PATCH 4/9] sync: serialise per-superblock sync operations Josef Bacik
2015-03-10 19:45 ` [PATCH 5/9] inode: rename i_wb_list to i_io_list Josef Bacik
2015-03-10 19:45 ` [PATCH 6/9] bdi: add a new writeback list for sync Josef Bacik
2015-03-16 10:14 ` Jan Kara
2015-03-10 19:45 ` [PATCH 7/9] writeback: periodically trim the writeback list Josef Bacik
2015-03-16 10:16 ` Jan Kara
2015-03-16 11:43 ` Jan Kara
2015-03-10 19:45 ` [PATCH 8/9] inode: convert per-sb inode list to a list_lru Josef Bacik
2015-03-16 12:27 ` Jan Kara
2015-03-16 15:34 ` Josef Bacik
2015-03-16 15:48 ` Jan Kara
2015-03-10 19:45 ` [PATCH 9/9] inode: don't softlockup when evicting inodes Josef Bacik
2015-03-16 12:31 ` Jan Kara
2015-03-16 11:39 ` Jan Kara [this message]
2015-03-25 11:18 ` [PATCH 0/9] Sync and VFS scalability improvements Mel Gorman
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