From: John Hubbard <jhubbard@nvidia.com>
To: Bob Liu <bob.liu@oracle.com>, Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Anna Schumaker <anna.schumaker@netapp.com>,
"David S . Miller" <davem@davemloft.net>,
Dominique Martinet <asmadeus@codewreck.org>,
Eric Van Hensbergen <ericvh@gmail.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Jason Wang <jasowang@redhat.com>,
Jens Axboe <axboe@kernel.dk>, Latchesar Ionkov <lucho@ionkov.net>,
"Michael S . Tsirkin" <mst@redhat.com>,
Miklos Szeredi <miklos@szeredi.hu>,
Trond Myklebust <trond.myklebust@hammerspace.com>,
Christoph Hellwig <hch@lst.de>,
Matthew Wilcox <willy@infradead.org>, <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>, <ceph-devel@vger.kernel.org>,
<kvm@vger.kernel.org>, <linux-block@vger.kernel.org>,
<linux-cifs@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>,
<linux-nfs@vger.kernel.org>, <linux-rdma@vger.kernel.org>,
<netdev@vger.kernel.org>, <samba-technical@lists.samba.org>,
<v9fs-developer@lists.sourceforge.net>,
<virtualization@lists.linux-foundation.org>
Subject: Re: [PATCH 00/12] block/bio, fs: convert put_page() to put_user_page*()
Date: Thu, 25 Jul 2019 18:24:16 -0700 [thread overview]
Message-ID: <88864b91-516d-9774-f4ca-b45927ac4556@nvidia.com> (raw)
In-Reply-To: <8621066c-e242-c449-eb04-4f2ce6867140@oracle.com>
On 7/24/19 5:41 PM, Bob Liu wrote:
> On 7/24/19 12:25 PM, john.hubbard@gmail.com wrote:
>> From: John Hubbard <jhubbard@nvidia.com>
>>
>> Hi,
>>
>> This is mostly Jerome's work, converting the block/bio and related areas
>> to call put_user_page*() instead of put_page(). Because I've changed
>> Jerome's patches, in some cases significantly, I'd like to get his
>> feedback before we actually leave him listed as the author (he might
>> want to disown some or all of these).
>>
>
> Could you add some background to the commit log for people don't have the context..
> Why this converting? What's the main differences?
>
Hi Bob,
1. Many of the patches have a blurb like this:
For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page().
This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").
...and if you look at that commit, you'll find several pages of
information in its commit description, which should address your point.
2. This whole series has to be re-worked, as per the other feedback thread.
So I'll keep your comment in mind when I post a new series.
thanks,
--
John Hubbard
NVIDIA
prev parent reply other threads:[~2019-07-26 1:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-24 4:25 [PATCH 00/12] block/bio, fs: convert put_page() to put_user_page*() john.hubbard
2019-07-24 4:25 ` [PATCH 01/12] mm/gup: add make_dirty arg to put_user_pages_dirty_lock() john.hubbard
2019-07-24 4:25 ` [PATCH 02/12] iov_iter: add helper to test if an iter would use GUP v2 john.hubbard
2019-07-24 4:25 ` [PATCH 03/12] block: bio_release_pages: use flags arg instead of bool john.hubbard
2019-07-24 5:30 ` Christoph Hellwig
2019-07-29 20:57 ` Jerome Glisse
2019-07-30 10:25 ` Christoph Hellwig
2019-07-30 15:57 ` Jerome Glisse
2019-08-01 8:20 ` Christoph Hellwig
2019-07-24 4:25 ` [PATCH 04/12] block: bio_release_pages: convert put_page() to put_user_page*() john.hubbard
2019-07-24 4:25 ` [PATCH 05/12] block_dev: " john.hubbard
2019-07-24 4:25 ` [PATCH 06/12] fs/nfs: " john.hubbard
2019-07-24 4:25 ` [PATCH 07/12] vhost-scsi: " john.hubbard
2019-07-24 4:34 ` John Hubbard
2019-07-24 8:07 ` Michael S. Tsirkin
2019-07-24 4:25 ` [PATCH 08/12] fs/cifs: " john.hubbard
2019-07-24 4:25 ` [PATCH 09/12] fs/fuse: " john.hubbard
2019-07-24 4:25 ` [PATCH 10/12] fs/ceph: " john.hubbard
2019-07-24 4:25 ` [PATCH 11/12] 9p/net: " john.hubbard
2019-07-24 4:25 ` [PATCH 12/12] fs/ceph: fix a build warning: returning a value from void function john.hubbard
2019-07-24 6:17 ` [PATCH 00/12] block/bio, fs: convert put_page() to put_user_page*() Christoph Hellwig
2019-07-24 23:23 ` John Hubbard
2019-08-05 22:54 ` John Hubbard
2019-08-07 6:34 ` Christoph Hellwig
2019-08-07 6:38 ` John Hubbard
2019-07-25 0:41 ` Bob Liu
2019-07-26 1:24 ` John Hubbard [this message]
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