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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6bb9c78ae4asm59853256d6.33.2024.08.07.12.48.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Aug 2024 12:48:16 -0700 (PDT) From: Peter Xu To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: "Aneesh Kumar K . V" , Michael Ellerman , Oscar Salvador , Dan Williams , James Houghton , Matthew Wilcox , Nicholas Piggin , Rik van Riel , Dave Jiang , Andrew Morton , x86@kernel.org, Ingo Molnar , Rick P Edgecombe , "Kirill A . Shutemov" , peterx@redhat.com, linuxppc-dev@lists.ozlabs.org, Mel Gorman , Hugh Dickins , Borislav Petkov , David Hildenbrand , Thomas Gleixner , Vlastimil Babka , Dave Hansen , Christophe Leroy , Huang Ying Subject: [PATCH v4 1/7] mm/dax: Dump start address in fault handler Date: Wed, 7 Aug 2024 15:48:05 -0400 Message-ID: <20240807194812.819412-2-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240807194812.819412-1-peterx@redhat.com> References: <20240807194812.819412-1-peterx@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Signed-off-by: Peter Xu --- 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 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 *v= mf, unsigned int order) int id; struct dev_dax *dev_dax =3D filp->private_data; =20 - 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=3D%s addr=3D%#lx order=3D%d\n", current->c= omm, + (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", + vmf->address & ~((1UL << (order + PAGE_SHIFT)) - 1), order); =20 id =3D dax_read_lock(); if (order =3D=3D 0) --=20 2.45.0