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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id af79cd13be357-79bce944cb2sm90564785a.125.2024.06.21.07.25.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Jun 2024 07:25:08 -0700 (PDT) From: Peter Xu To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 1/7] mm/dax: Dump start address in fault handler Date: Fri, 21 Jun 2024 10:24:58 -0400 Message-ID: <20240621142504.1940209-2-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240621142504.1940209-1-peterx@redhat.com> References: <20240621142504.1940209-1-peterx@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Hansen , peterx@redhat.com, Christophe Leroy , Dan Williams , Dave Jiang , x86@kernel.org, Hugh Dickins , Matthew Wilcox , Ingo Molnar , Huang Ying , Rik van Riel , Nicholas Piggin , Borislav Petkov , "Kirill A . Shutemov" , Thomas Gleixner , Vlastimil Babka , Oscar Salvador , linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K . V" , Andrew Morton , Mel Gorman Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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 --- 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