From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ross Zwisler Subject: [PATCH 2/4] pmem: Add support for getgeo() Date: Wed, 27 Aug 2014 15:12:00 -0600 Message-ID: <1409173922-7484-3-git-send-email-ross.zwisler@linux.intel.com> References: <1409173922-7484-1-git-send-email-ross.zwisler@linux.intel.com> Cc: Ross Zwisler To: Jens Axboe , Matthew Wilcox , Boaz Harrosh , Nick Piggin , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org Return-path: In-Reply-To: <1409173922-7484-1-git-send-email-ross.zwisler@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Some programs require HDIO_GETGEO work, which requires we implement getgeo. Based off of the work done to the NVMe driver in this commit: commit 4cc09e2dc4cb ("NVMe: Add getgeo to block ops") Signed-off-by: Ross Zwisler --- drivers/block/pmem.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/block/pmem.c b/drivers/block/pmem.c index d366b9b..60bbe0d 100644 --- a/drivers/block/pmem.c +++ b/drivers/block/pmem.c @@ -50,6 +50,15 @@ struct pmem_device { size_t size; }; +static int pmem_getgeo(struct block_device *bd, struct hd_geometry *geo) +{ + /* some standard values */ + geo->heads = 1 << 6; + geo->sectors = 1 << 5; + geo->cylinders = get_capacity(bd->bd_disk) >> 11; + return 0; +} + /* * direct translation from (pmem,sector) => void* * We do not require that sector be page aligned. @@ -176,6 +185,7 @@ out: static const struct block_device_operations pmem_fops = { .owner = THIS_MODULE, + .getgeo = pmem_getgeo, }; /* Kernel module stuff */ -- 1.9.3