LKML Archive on
help / color / mirror / Atom feed
From: Jan Kara <>
To: Josef Bacik <>
Subject: Re: [PATCH 0/9] Sync and VFS scalability improvements
Date: Mon, 16 Mar 2015 12:39:38 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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
> 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...

Jan Kara <>

  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 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \
    --subject='Re: [PATCH 0/9] Sync and VFS scalability improvements' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).