From: Matthew Wilcox <matthew.r.wilcox@intel.com>
To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>, willy@linux.intel.com
Subject: [PATCH v2 6/6] brd: Add support for rw_page
Date: Sun, 23 Mar 2014 15:08:28 -0400 [thread overview]
Message-ID: <67076223fca0b9ad393699a1fcfe53a95401d492.1395593198.git.matthew.r.wilcox@intel.com> (raw)
In-Reply-To: <cover.1395593198.git.matthew.r.wilcox@intel.com>
In-Reply-To: <cover.1395593198.git.matthew.r.wilcox@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
---
drivers/block/brd.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index e73b85c..807d3d5 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -360,6 +360,15 @@ out:
bio_endio(bio, err);
}
+static int brd_rw_page(struct block_device *bdev, sector_t sector,
+ struct page *page, int rw)
+{
+ struct brd_device *brd = bdev->bd_disk->private_data;
+ int err = brd_do_bvec(brd, page, PAGE_CACHE_SIZE, 0, rw, sector);
+ page_endio(page, rw & WRITE, err);
+ return err;
+}
+
#ifdef CONFIG_BLK_DEV_XIP
static int brd_direct_access(struct block_device *bdev, sector_t sector,
void **kaddr, unsigned long *pfn)
@@ -419,6 +428,7 @@ static int brd_ioctl(struct block_device *bdev, fmode_t mode,
static const struct block_device_operations brd_fops = {
.owner = THIS_MODULE,
+ .rw_page = brd_rw_page,
.ioctl = brd_ioctl,
#ifdef CONFIG_BLK_DEV_XIP
.direct_access = brd_direct_access,
--
1.9.0
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
prev parent reply other threads:[~2014-03-23 19:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-23 19:08 [PATCH v2 0/6] Page I/O Matthew Wilcox
2014-03-23 19:08 ` [PATCH v2 1/6] Factor clean_buffers() out of __mpage_writepage() Matthew Wilcox
2014-03-23 19:08 ` [PATCH v2 2/6] Factor page_endio() out of mpage_end_io() Matthew Wilcox
2014-03-23 19:08 ` [PATCH v2 3/6] Add bdev_read_page() and bdev_write_page() Matthew Wilcox
2014-03-23 19:08 ` [PATCH v2 4/6] swap: Use bdev_read_page() / bdev_write_page() Matthew Wilcox
2014-03-23 19:08 ` [PATCH v2 5/6] NVMe: Add support for rw_page Matthew Wilcox
2014-03-23 19:08 ` Matthew Wilcox [this message]
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=67076223fca0b9ad393699a1fcfe53a95401d492.1395593198.git.matthew.r.wilcox@intel.com \
--to=matthew.r.wilcox@intel.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=willy@linux.intel.com \
/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