[PATCH 03/12] dax: don't pass buffer_head to dax_insert_mapping
From: Christoph Hellwig <hch@lst.de>
Date: 2016-09-16 11:27:30
Also in:
linux-fsdevel, nvdimm
Subsystem:
filesystem direct access (dax), filesystems (vfs and infrastructure), the rest · Maintainers:
Dan Williams, Alexander Viro, Christian Brauner, Linus Torvalds
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 <redacted> --- 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