From: Al Viro <viro@zeniv.linux.org.uk>
To: "Tobin C. Harding" <me@tobin.cc>
Cc: "Tobin C. Harding" <tobin@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Roman Gushchin <guro@fb.com>,
Alexander Viro <viro@ftp.linux.org.uk>,
Christoph Hellwig <hch@infradead.org>,
Pekka Enberg <penberg@cs.helsinki.fi>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Christopher Lameter <cl@linux.com>,
Matthew Wilcox <willy@infradead.org>,
Miklos Szeredi <mszeredi@redhat.com>,
Andreas Dilger <adilger@dilger.ca>,
Waiman Long <longman@redhat.com>, Tycho Andersen <tycho@tycho.ws>,
Theodore Ts'o <tytso@mit.edu>, Andi Kleen <ak@linux.intel.com>,
David Chinner <david@fromorbit.com>,
Nick Piggin <npiggin@gmail.com>, Rik van Riel <riel@redhat.com>,
Hugh Dickins <hughd@google.com>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC PATCH v2 14/14] dcache: Implement object migration
Date: Thu, 4 Apr 2019 22:58:10 +0100 [thread overview]
Message-ID: <20190404215810.GG2217@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20190404202914.GA16709@eros.localdomain>
On Fri, Apr 05, 2019 at 07:29:14AM +1100, Tobin C. Harding wrote:
> > __d_alloc() is not holding ->d_lock, since the object is not visible to
> > anybody else yet; with your changes it *is* visible.
>
> I don't quite understand this comment. How is the object visible? The
> constructor is only called when allocating a new page to the slab and
> this is done with interrupts disabled.
Not to constructor, to your try-to-evict code...
next prev parent reply other threads:[~2019-04-04 21:58 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 4:21 [RFC PATCH v2 00/14] Slab Movable Objects (SMO) Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 01/14] slub: Add isolate() and migrate() methods Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 02/14] tools/vm/slabinfo: Add support for -C and -M options Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 03/14] slub: Sort slab cache list Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 04/14] slub: Slab defrag core Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 05/14] tools/vm/slabinfo: Add remote node defrag ratio output Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 06/14] tools/vm/slabinfo: Add defrag_used_ratio output Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 07/14] tools/testing/slab: Add object migration test module Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 08/14] tools/testing/slab: Add object migration test suite Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 09/14] xarray: Implement migration function for objects Tobin C. Harding
2019-04-03 17:23 ` Matthew Wilcox
2019-04-03 21:19 ` Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 10/14] tools/testing/slab: Add XArray movable objects tests Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 11/14] slub: Enable moving objects to/from specific nodes Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 12/14] slub: Enable balancing slabs across nodes Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 13/14] dcache: Provide a dentry constructor Tobin C. Harding
2019-04-03 4:21 ` [RFC PATCH v2 14/14] dcache: Implement object migration Tobin C. Harding
2019-04-03 17:08 ` Al Viro
2019-04-03 17:19 ` Al Viro
2019-04-03 17:48 ` Al Viro
2019-04-04 20:29 ` Tobin C. Harding
2019-04-04 21:58 ` Al Viro [this message]
2019-04-04 21:18 ` Tobin C. Harding
2019-04-03 17:56 ` Christopher Lameter
2019-04-03 18:24 ` Al Viro
2019-04-03 19:05 ` Al Viro
2019-04-04 8:01 ` Miklos Szeredi
2019-04-04 15:46 ` Christopher Lameter
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