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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nvdimm-y27Ovi1pjclAfugRpC6u6w@public.gmane.org
Subject: [PATCH 03/12] dax: don't pass buffer_head to dax_insert_mapping
Date: Fri, 16 Sep 2016 13:27:05 +0200	[thread overview]
Message-ID: <1474025234-13804-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1474025234-13804-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>

This way we can use this helper for the iomap based DAX implementation
as well.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Reviewed-by: Ross Zwisler <ross.zwisler-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
 fs/dax.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/dax.c b/fs/dax.c
index 993dc6f..98463bb 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -790,14 +790,13 @@ int dax_writeback_mapping_range(struct address_space *mapping,
 EXPORT_SYMBOL_GPL(dax_writeback_mapping_range);
 
 static int dax_insert_mapping(struct address_space *mapping,
-			struct buffer_head *bh, void **entryp,
-			struct vm_area_struct *vma, struct vm_fault *vmf)
+		struct block_device *bdev, sector_t sector, size_t size,
+		void **entryp, struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	unsigned long vaddr = (unsigned long)vmf->virtual_address;
-	struct block_device *bdev = bh->b_bdev;
 	struct blk_dax_ctl dax = {
-		.sector = to_sector(bh, mapping->host),
-		.size = bh->b_size,
+		.sector = sector,
+		.size = size,
 	};
 	void *ret;
 	void *entry = *entryp;
@@ -898,7 +897,8 @@ int dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
 
 	/* Filesystem should not return unwritten buffers to us! */
 	WARN_ON_ONCE(buffer_unwritten(&bh) || buffer_new(&bh));
-	error = dax_insert_mapping(mapping, &bh, &entry, vma, vmf);
+	error = dax_insert_mapping(mapping, bh.b_bdev, to_sector(&bh, inode),
+			bh.b_size, &entry, vma, vmf);
  unlock_entry:
 	put_locked_mapping_entry(mapping, vmf->pgoff, entry);
  out:
-- 
2.1.4

WARNING: multiple messages have this Message-ID

From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-nvdimm@ml01.01.org
Cc: ross.zwisler@linux.intel.com
Subject: [PATCH 03/12] dax: don't pass buffer_head to dax_insert_mapping
Date: Fri, 16 Sep 2016 13:27:05 +0200	[thread overview]
Message-ID: <1474025234-13804-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1474025234-13804-1-git-send-email-hch@lst.de>

This way we can use this helper for the iomap based DAX implementation
as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---
 fs/dax.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/dax.c b/fs/dax.c
index 993dc6f..98463bb 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -790,14 +790,13 @@ int dax_writeback_mapping_range(struct address_space *mapping,
 EXPORT_SYMBOL_GPL(dax_writeback_mapping_range);
 
 static int dax_insert_mapping(struct address_space *mapping,
-			struct buffer_head *bh, void **entryp,
-			struct vm_area_struct *vma, struct vm_fault *vmf)
+		struct block_device *bdev, sector_t sector, size_t size,
+		void **entryp, struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	unsigned long vaddr = (unsigned long)vmf->virtual_address;
-	struct block_device *bdev = bh->b_bdev;
 	struct blk_dax_ctl dax = {
-		.sector = to_sector(bh, mapping->host),
-		.size = bh->b_size,
+		.sector = sector,
+		.size = size,
 	};
 	void *ret;
 	void *entry = *entryp;
@@ -898,7 +897,8 @@ int dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
 
 	/* Filesystem should not return unwritten buffers to us! */
 	WARN_ON_ONCE(buffer_unwritten(&bh) || buffer_new(&bh));
-	error = dax_insert_mapping(mapping, &bh, &entry, vma, vmf);
+	error = dax_insert_mapping(mapping, bh.b_bdev, to_sector(&bh, inode),
+			bh.b_size, &entry, vma, vmf);
  unlock_entry:
 	put_locked_mapping_entry(mapping, vmf->pgoff, entry);
  out:
-- 
2.1.4


  parent reply	other threads:[~2016-09-16 11:27 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-16 11:27 iomap based DAX path V3 Christoph Hellwig
     [not found] ` <1474025234-13804-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-09-16 11:27   ` [PATCH 01/12] iomap: add IOMAP_F_NEW flag Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 02/12] iomap: expose iomap_apply outside iomap.c Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` Christoph Hellwig [this message]
2016-09-16 11:27     ` [PATCH 03/12] dax: don't pass buffer_head to dax_insert_mapping Christoph Hellwig
2016-09-16 11:27   ` [PATCH 04/12] dax: don't pass buffer_head to copy_user_dax Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 06/12] dax: provide an iomap based fault handler Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 07/12] xfs: fix locking for DAX writes Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 10/12] xfs: use iomap to implement DAX Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 11/12] ext2: stop passing buffer_head to ext2_get_blocks Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
2016-09-16 11:27   ` [PATCH 12/12] ext2: use iomap to implement DAX Christoph Hellwig
2016-09-16 11:27     ` Christoph Hellwig
     [not found]     ` <1474025234-13804-13-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-09-26 14:49       ` Jan Kara
2016-09-26 14:49         ` Jan Kara
2016-09-16 11:27 ` [PATCH 05/12] dax: provide an iomap based dax read/write path Christoph Hellwig
2016-09-16 11:27 ` [PATCH 08/12] xfs: take the ilock shared if possible in xfs_file_iomap_begin Christoph Hellwig
2016-09-16 11:27 ` [PATCH 09/12] xfs: refactor xfs_setfilesize Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
2016-09-14 10:01 iomap based DAX path V2 Christoph Hellwig
2016-09-14 10:01 ` [PATCH 03/12] dax: don't pass buffer_head to dax_insert_mapping Christoph Hellwig

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