diff mbox series

[v5,1/7] mm/dax: Dump start address in fault handler

Message ID 20240812181225.1360970-2-peterx@redhat.com (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series mm/mprotect: Fix dax puds | expand

Commit Message

Peter Xu Aug. 12, 2024, 6:12 p.m. UTC 
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.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 drivers/dax/device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 2051e4f73c8a..9c1a729cd77e 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)