[PATCH v3 1/8] mm/dax: Dump start address in fault handler

[Peter Xu]

Currently the dax fault handler dumps the vma range when dynamic debugging
enabled.  That's mostly not useful.  Dump the (aligned) address instead
with the order info.

Signed-off-by: Peter Xu <pet...@redhat.com>
---
 drivers/dax/device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index eb61598247a9..714174844ca5 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -235,9 +235,9 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, 
unsigned int order)
        int id;
        struct dev_dax *dev_dax = filp->private_data;
 
-       dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) order:%d\n", current->comm,
-                       (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read",
-                       vmf->vma->vm_start, vmf->vma->vm_end, order);
+       dev_dbg(&dev_dax->dev, "%s: op=%s addr=%#lx order=%d\n", current->comm,
+               (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read",
+               vmf->address & ~((1UL << (order + PAGE_SHIFT)) - 1), order);
 
        id = dax_read_lock();
        if (order == 0)
-- 
2.45.0