[PATCH v3 05/13] dax: stop requiring a live device for dax_flush()

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Now that dax_flush() is no longer a driver callback (commit c3ca015fab6d
"dax: remove the pmem_dax_ops->flush abstraction"), stop requiring the
dax_read_lock() to be held and the device to be alive.  This is in
preparation for switching filesystem-dax to store pfns instead of
sectors in the radix.

Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
 drivers/dax/super.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 26c324a5aef4..be65430b4483 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -280,9 +280,6 @@ EXPORT_SYMBOL_GPL(dax_copy_from_iter);
 void arch_wb_cache_pmem(void *addr, size_t size);
 void dax_flush(struct dax_device *dax_dev, void *addr, size_t size)
 {
-	if (unlikely(!dax_alive(dax_dev)))
-		return;
-
 	if (unlikely(!test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags)))
 		return;
 




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