From: jglisse@redhat.com
To: linux-kernel@vger.kernel.org
Cc: "Jérôme Glisse" <jglisse@redhat.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-mm@kvack.org, "John Hubbard" <jhubbard@nvidia.com>,
"Jan Kara" <jack@suse.cz>,
"Dan Williams" <dan.j.williams@intel.com>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Johannes Thumshirn" <jthumshirn@suse.de>,
"Christoph Hellwig" <hch@lst.de>, "Jens Axboe" <axboe@kernel.dk>,
"Ming Lei" <ming.lei@redhat.com>,
"Dave Chinner" <david@fromorbit.com>,
"Jason Gunthorpe" <jgg@ziepe.ca>,
"Matthew Wilcox" <willy@infradead.org>,
"Steve French" <sfrench@samba.org>,
linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
"Ilya Dryomov" <idryomov@gmail.com>,
"Sage Weil" <sage@redhat.com>, "Alex Elder" <elder@kernel.org>,
ceph-devel@vger.kernel.org
Subject: [PATCH v1 14/15] fs: use bvec_set_gup_page() where appropriate
Date: Thu, 11 Apr 2019 17:08:33 -0400 [thread overview]
Message-ID: <20190411210834.4105-15-jglisse@redhat.com> (raw)
In-Reply-To: <20190411210834.4105-1-jglisse@redhat.com>
From: Jérôme Glisse <jglisse@redhat.com>
When we get a page reference through get_user_page*() we want to keep
track of that and bvec now has the ability to do so. Convert code to
use bvec_set_gup_page() where appropriate.
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-block@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Steve French <sfrench@samba.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Sage Weil <sage@redhat.com>
Cc: Alex Elder <elder@kernel.org>
Cc: ceph-devel@vger.kernel.org
---
fs/ceph/file.c | 3 +++
fs/cifs/misc.c | 6 +++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index d5561662b902..6c5b85f01721 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -104,6 +104,9 @@ static ssize_t __iter_get_bvecs(struct iov_iter *iter, size_t maxsize,
min_t(int, bytes, PAGE_SIZE - start),
start);
+ /* Is iov_iter_get_pages() using GUP ? */
+ if (iov_iter_get_pages_use_gup(iter))
+ bvec_set_gup_page(&bv, pages[idx]);
bvecs[bvec_idx] = bv;
bytes -= bv.bv_len;
start = 0;
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index bc77a4a5f1af..e10d9f0f5874 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -883,7 +883,11 @@ setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw)
for (i = 0; i < cur_npages; i++) {
len = rc > PAGE_SIZE ? PAGE_SIZE : rc;
- bvec_set_page(&bv[npages + i], pages[i]);
+ /* Is iov_iter_get_pages() using GUP ? */
+ if (iov_iter_get_pages_use_gup(iter))
+ bvec_set_gup_page(&bv[npages + i], pages[i]);
+ else
+ bvec_set_page(&bv[npages + i], pages[i]);
bv[npages + i].bv_offset = start;
bv[npages + i].bv_len = len - start;
rc -= len;
--
2.20.1
next prev parent reply other threads:[~2019-04-11 21:09 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 21:08 [PATCH v1 00/15] Keep track of GUPed pages in fs and block jglisse
2019-04-11 21:08 ` [PATCH v1 01/15] fs/direct-io: fix trailing whitespace issues jglisse
2019-04-11 21:08 ` [PATCH v1 02/15] iov_iter: add helper to test if an iter would use GUP jglisse
2019-04-11 21:08 ` [PATCH v1 03/15] block: introduce bvec_page()/bvec_set_page() to get/set bio_vec.bv_page jglisse
2019-04-11 21:08 ` [PATCH v1 04/15] block: introduce BIO_VEC_INIT() macro to initialize bio_vec structure jglisse
2019-04-11 21:08 ` [PATCH v1 05/15] block: replace all bio_vec->bv_page by bvec_page()/bvec_set_page() jglisse
2019-04-11 21:08 ` [PATCH v1 06/15] block: convert bio_vec.bv_page to bv_pfn to store pfn and not page jglisse
2019-04-11 21:08 ` [PATCH v1 07/15] block: add bvec_put_page_dirty*() to replace put_page(bvec_page()) jglisse
2019-04-11 21:08 ` [PATCH v1 08/15] block: use bvec_put_page() instead of put_page(bvec_page()) jglisse
2019-04-11 21:08 ` [PATCH v1 09/15] block: bvec_put_page_dirty* instead of set_page_dirty* and bvec_put_page jglisse
2019-04-11 21:08 ` [PATCH v1 10/15] block: add gup flag to bio_add_page()/bio_add_pc_page()/__bio_add_page() jglisse
2019-04-15 14:59 ` Jan Kara
2019-04-15 15:24 ` Jerome Glisse
2019-04-16 16:46 ` Jan Kara
2019-04-16 16:54 ` Dan Williams
2019-04-16 17:07 ` Jerome Glisse
2019-04-16 0:22 ` Jerome Glisse
2019-04-16 16:52 ` Jan Kara
2019-04-16 18:32 ` Jerome Glisse
2019-04-11 21:08 ` [PATCH v1 11/15] block: make sure bio_add_page*() knows page that are coming from GUP jglisse
2019-04-11 21:08 ` [PATCH v1 12/15] fs/direct-io: keep track of wether a page is coming from GUP or not jglisse
2019-04-11 23:14 ` Dave Chinner
2019-04-12 0:08 ` Jerome Glisse
2019-04-11 21:08 ` [PATCH v1 13/15] fs/splice: use put_user_page() when appropriate jglisse
2019-04-11 21:08 ` jglisse [this message]
2019-04-11 21:08 ` [PATCH v1 15/15] ceph: use put_user_pages() instead of ceph_put_page_vector() jglisse
2019-04-15 7:46 ` Yan, Zheng
2019-04-15 15:11 ` Jerome Glisse
2019-04-16 0:00 ` [PATCH v1 00/15] Keep track of GUPed pages in fs and block Dave Chinner
[not found] ` <2c124cc4-b97e-ee28-2926-305bc6bc74bd@plexistor.com>
2019-04-16 18:47 ` Jerome Glisse
2019-04-16 18:59 ` Kent Overstreet
2019-04-16 19:12 ` Dan Williams
2019-04-16 19:49 ` Jerome Glisse
2019-04-17 21:53 ` Dan Williams
2019-04-17 22:28 ` Jerome Glisse
2019-04-17 23:32 ` Dan Williams
2019-04-18 10:42 ` Jan Kara
2019-04-18 14:27 ` Jerome Glisse
2019-04-18 15:30 ` Jan Kara
2019-04-18 15:36 ` Jerome Glisse
2019-04-18 18:03 ` Dan Williams
[not found] ` <ccac6c5a-7120-0455-88de-ca321b01e825@plexistor.com>
2019-04-16 19:57 ` Jerome Glisse
[not found] ` <41e2d7e1-104b-a006-2824-015ca8c76cc8@gmail.com>
2019-04-16 23:16 ` Jerome Glisse
[not found] ` <fa00a2ff-3664-3165-7af8-9d9c53238245@plexistor.com>
2019-04-17 2:03 ` Jerome Glisse
2019-04-17 21:19 ` Jerome Glisse
2019-04-16 23:34 ` Jerome Glisse
2019-04-17 21:54 ` Dan Williams
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:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190411210834.4105-15-jglisse@redhat.com \
--to=jglisse@redhat.com \
--cc=axboe@kernel.dk \
--cc=ceph-devel@vger.kernel.org \
--cc=dan.j.williams@intel.com \
--cc=david@fromorbit.com \
--cc=elder@kernel.org \
--cc=hch@lst.de \
--cc=idryomov@gmail.com \
--cc=jack@suse.cz \
--cc=jgg@ziepe.ca \
--cc=jhubbard@nvidia.com \
--cc=jthumshirn@suse.de \
--cc=linux-block@vger.kernel.org \
--cc=linux-cifs@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ming.lei@redhat.com \
--cc=sage@redhat.com \
--cc=samba-technical@lists.samba.org \
--cc=sfrench@samba.org \
--cc=viro@zeniv.linux.org.uk \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).