grub2/0050-Fix-convert-function-to-support-NVMe-devices.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 18 Feb 2014 11:34:00 -0500
Subject: [PATCH] Fix convert function to support NVMe devices

This is adapted from the patch at
https://bugzilla.redhat.com/show_bug.cgi?id=1019660 , which is against
the now very old version of convert_system_partition_to_system_disk().

As such, it certainly not the right thing for upstream, but should
function for now.

Resolves: rhbz#1019660

Signed-off-by: Peter Jones <grub2-owner@fedoraproject.org>
---
 util/getroot.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/util/getroot.c b/util/getroot.c
index 847406fbab0..fa3460d6cd8 100644
--- a/util/getroot.c
+++ b/util/getroot.c
@@ -153,6 +153,7 @@ convert_system_partition_to_system_disk (const char *os_dev, int *is_part)
 {
 #if GRUB_UTIL_FD_STAT_IS_FUNCTIONAL
   struct stat st;
+  char *path = xmalloc(PATH_MAX);
 
   if (stat (os_dev, &st) < 0)
     {
@@ -165,6 +166,24 @@ convert_system_partition_to_system_disk (const char *os_dev, int *is_part)
 
   *is_part = 0;
 
+  if (realpath(os_dev, path))
+    {
+      if ((strncmp ("/dev/nvme", path, 9) == 0))
+	{
+	  char *p = path + 5;
+	  p = strchr(p, 'p');
+	  if (p)
+	    {
+	      *is_part = 1;
+	      *p = '\0';
+	    }
+	  return path;
+	}
+    }
+
+  grub_free (path);
+  *is_part = 0;
+
   if (grub_util_device_is_mapped_stat (&st))
     return grub_util_devmapper_part_to_disk (&st, is_part, os_dev);