* on persistent storage prior to completion of the operation.
*/
int dax_writeback_mapping_range(struct address_space *mapping,
- struct block_device *bdev, struct writeback_control *wbc)
+ struct dax_device *dax_dev, struct writeback_control *wbc)
{
XA_STATE(xas, &mapping->i_pages, wbc->range_start >> PAGE_SHIFT);
struct inode *inode = mapping->host;
pgoff_t end_index = wbc->range_end >> PAGE_SHIFT;
- struct dax_device *dax_dev;
void *entry;
int ret = 0;
unsigned int scanned = 0;
if (!mapping->nrexceptional || wbc->sync_mode != WB_SYNC_ALL)
return 0;
- dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
- if (!dax_dev)
- return -EIO;
-
trace_dax_writeback_range(inode, xas.xa_index, end_index);
tag_pages_for_writeback(mapping, xas.xa_index, end_index);
xas_lock_irq(&xas);
}
xas_unlock_irq(&xas);
- put_dax(dax_dev);
trace_dax_writeback_range_done(inode, xas.xa_index, end_index);
return ret;
}
static loff_t
dax_iomap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
- struct iomap *iomap)
+ struct iomap *iomap, struct iomap *srcmap)
{
struct block_device *bdev = iomap->bdev;
struct dax_device *dax_dev = iomap->dax_dev;
lockdep_assert_held(&inode->i_rwsem);
}
+ if (iocb->ki_flags & IOCB_NOWAIT)
+ flags |= IOMAP_NOWAIT;
+
while (iov_iter_count(iter)) {
ret = iomap_apply(inode, pos, iov_iter_count(iter), flags, ops,
iter, dax_iomap_actor);
struct inode *inode = mapping->host;
unsigned long vaddr = vmf->address;
loff_t pos = (loff_t)vmf->pgoff << PAGE_SHIFT;
- struct iomap iomap = { 0 };
+ struct iomap iomap = { .type = IOMAP_HOLE };
+ struct iomap srcmap = { .type = IOMAP_HOLE };
unsigned flags = IOMAP_FAULT;
int error, major = 0;
bool write = vmf->flags & FAULT_FLAG_WRITE;
* the file system block size to be equal the page size, which means
* that we never have to deal with more than a single extent here.
*/
- error = ops->iomap_begin(inode, pos, PAGE_SIZE, flags, &iomap);
+ error = ops->iomap_begin(inode, pos, PAGE_SIZE, flags, &iomap, &srcmap);
if (iomap_errp)
*iomap_errp = error;
if (error) {
unsigned int iomap_flags = (write ? IOMAP_WRITE : 0) | IOMAP_FAULT;
struct inode *inode = mapping->host;
vm_fault_t result = VM_FAULT_FALLBACK;
- struct iomap iomap = { 0 };
+ struct iomap iomap = { .type = IOMAP_HOLE };
+ struct iomap srcmap = { .type = IOMAP_HOLE };
pgoff_t max_pgoff;
void *entry;
loff_t pos;
* to look up our filesystem block.
*/
pos = (loff_t)xas.xa_index << PAGE_SHIFT;
- error = ops->iomap_begin(inode, pos, PMD_SIZE, iomap_flags, &iomap);
+ error = ops->iomap_begin(inode, pos, PMD_SIZE, iomap_flags, &iomap,
+ &srcmap);
if (error)
goto unlock_entry;