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From: Dave Jiang <dave.jiang@intel.com>
To: dan.j.williams@intel.com
Cc: linux-nvdimm@lists.01.org
Subject: [PATCH] dax: pgoff in fs DAX trace needs to be corrected
Date: Mon, 23 Jan 2017 17:06:39 -0700	[thread overview]
Message-ID: <148521639917.25631.6919429328589810158.stgit@djiang5-desk3.ch.intel.com> (raw)

With only vmf being passed in, the pgoff in vmf that is passed in is for
the PTE and not the PMD. Fix up so the pgoff is corrected.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 include/trace/events/fs_dax.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index c566ddc..e26affa 100644
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -30,7 +30,8 @@ DECLARE_EVENT_CLASS(dax_pmd_fault_class,
 		__entry->vm_flags = vmf->vma->vm_flags;
 		__entry->address = vmf->address;
 		__entry->flags = vmf->flags;
-		__entry->pgoff = vmf->pgoff;
+		__entry->pgoff = linear_page_index(vmf->vma,
+			vmf->address & PMD_MASK);
 		__entry->max_pgoff = max_pgoff;
 		__entry->result = result;
 	),

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             reply	other threads:[~2017-01-24  0:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-24  0:06 Dave Jiang [this message]
2017-01-24 18:33 ` [PATCH] dax: pgoff in fs DAX trace needs to be corrected Ross Zwisler

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