From: Vivek Goyal <vgoyal@redhat.com>
To: linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org,
dan.j.williams@intel.com, hch@infradead.org
Cc: dm-devel@redhat.com
Subject: [PATCH 2/5] s390,dax: Add dax zero_page_range operation to dcssblk driver
Date: Mon, 3 Feb 2020 15:00:26 -0500 [thread overview]
Message-ID: <20200203200029.4592-3-vgoyal@redhat.com> (raw)
In-Reply-To: <20200203200029.4592-1-vgoyal@redhat.com>
Add dax operation zero_page_range. This just calls generic helper
generic_dax_zero_page_range().
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
drivers/s390/block/dcssblk.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 63502ca537eb..f6709200bcd0 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -62,6 +62,7 @@ static const struct dax_operations dcssblk_dax_ops = {
.dax_supported = generic_fsdax_supported,
.copy_from_iter = dcssblk_dax_copy_from_iter,
.copy_to_iter = dcssblk_dax_copy_to_iter,
+ .zero_page_range = dcssblk_dax_zero_page_range,
};
struct dcssblk_dev_info {
@@ -941,6 +942,12 @@ dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
return __dcssblk_direct_access(dev_info, pgoff, nr_pages, kaddr, pfn);
}
+static int dcssblk_dax_zero_page_range(struct dax_device *dax_dev,pgoff_t pgoff,
+ unsigned offset, size_t len)
+{
+ return generic_dax_zero_page_range(dax_dev, pgoff, offset, len);
+}
+
static void
dcssblk_check_params(void)
{
--
2.18.1
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next prev parent reply other threads:[~2020-02-03 20:01 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-03 20:00 [RFC PATCH 0/5][V2] dax,pmem: Provide a dax operation to zero range of memory Vivek Goyal
2020-02-03 20:00 ` [PATCH 1/5] dax, pmem: Add a dax operation zero_page_range Vivek Goyal
2020-02-05 18:30 ` Christoph Hellwig
2020-02-05 20:02 ` Vivek Goyal
2020-02-06 0:40 ` Dan Williams
2020-02-06 7:41 ` Christoph Hellwig
2020-02-07 16:57 ` Dan Williams
2020-02-07 17:01 ` Vivek Goyal
2020-02-07 17:06 ` Dan Williams
2020-02-06 14:34 ` Vivek Goyal
2020-02-07 16:58 ` Dan Williams
2020-02-03 20:00 ` Vivek Goyal [this message]
2020-02-05 18:32 ` [PATCH 2/5] s390,dax: Add dax zero_page_range operation to dcssblk driver Christoph Hellwig
2020-02-05 20:04 ` Vivek Goyal
2020-02-03 20:00 ` [PATCH 3/5] dm,dax: Add dax zero_page_range operation Vivek Goyal
2020-02-05 18:33 ` Christoph Hellwig
2020-02-07 16:34 ` Vivek Goyal
2020-02-03 20:00 ` [PATCH 4/5] dax,iomap: Start using dax native zero_page_range() Vivek Goyal
2020-02-05 18:33 ` Christoph Hellwig
2020-02-05 20:10 ` Vivek Goyal
2020-02-07 15:31 ` Vivek Goyal
2020-02-03 20:00 ` [PATCH 5/5] dax,iomap: Add helper dax_iomap_zero() to zero a range Vivek Goyal
2020-02-04 5:17 ` kbuild test robot
2020-02-05 18:36 ` Christoph Hellwig
2020-02-05 20:15 ` Vivek Goyal
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