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authorChristoph Hellwig <hch@lst.de>2016-09-19 04:24:49 +0300
committerDave Chinner <david@fromorbit.com>2016-09-19 04:24:49 +0300
commit1aaba0958ed371bd121751d74d98f2a76395edad (patch)
tree1bc7638ec4ea2586d49a0fecf82dccebf7f084d3 /fs/dax.c
parentbefb503ca6e648cc5ed3e3a472d5b5887a60e0f2 (diff)
downloadlinux-1aaba0958ed371bd121751d74d98f2a76395edad.tar.xz
dax: don't pass buffer_head to dax_insert_mapping
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> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/dax.c b/fs/dax.c
index 993dc6fe0416..98463bb9827c 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: