From 70bcdeaee2d12ad65ad61ad984f1a6bfdf3845d8 Mon Sep 17 00:00:00 2001
From: Mike Fleetwood <mike.fleetwood@googlemail.com>
Date: Wed, 16 Sep 2015 20:25:58 +0100
Subject: [PATCH] Recognise NVME devices (#755022)
Add a pattern to recognise Non-Volatile Memory Express devices as valid
devices to work with. Devices are named by the Linux kernel device
driver like /dev/nvme0n1 [1] with partitions named like /dev/nvme0n1p1
[2].
[1] linux 3.3 drivers/block/nvme.c nvme_alloc_ns()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/block/nvme.c?id=v3.3#n1351
[2] Contents of /proc/partitions for a partitioned NVME device
$ grep nvme /proc/partitions
259 0 390711384 nvme0n1
259 1 977 nvme0n1p1
259 2 31250000 nvme0n1p2
259 3 328209496 nvme0n1p3
259 4 31249408 nvme0n1p4
Bug 755022 - gparted doesn't recognize nvme devices
---
src/Proc_Partitions_Info.cc | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/src/Proc_Partitions_Info.cc b/src/Proc_Partitions_Info.cc
index 595cdb2..f17f689 100644
--- src/Proc_Partitions_Info.cc
+++ src/Proc_Partitions_Info.cc
@@ -99,6 +99,14 @@ void Proc_Partitions_Info::load_proc_partitions_info_cache()
//E.g., device = /dev/mmcblk0, partition = /dev/mmcblk0p1
if ( device == "" )
device = Utils::regexp_label(line, "^[\t ]+[0-9]+[\t ]+[0-9]+[\t ]+[0-9]+[\t ]+(mmcblk[0-9]+)$") ;
+
+ // Recognise /dev/nvme*n* devices
+ // (Non-Volatile Memory Express devices. SSD type devices which
+ // plug directly into PCIe sockets).
+ // E.g., device = /dev/nvme0n1, partition = /dev/nvme0n1p1
+ if ( device == "" )
+ device = Utils::regexp_label(line, "^[\t ]+[0-9]+[\t ]+[0-9]+[\t ]+[0-9]+[\t ]+(nvme[0-9]+n[0-9]+)$");
+
//Device names that end with a #[^p]# are HP Smart Array Devices (disks)
// E.g., device = /dev/cciss/c0d0, partition = /dev/cciss/c0d0p1
// (linux-x.y.z/Documentation/blockdev/cciss.txt)
--
1.7.1