[PATCH v2 01/12] linux/getroot: Handle rssd storage device names

[Javier Martinez Canillas <javierm@redhat.com>]

From: Peter Jones <pjones@redhat.com>

The Micron PCIe SSDs Linux driver (mtip32xx) exposes block devices
as /dev/rssd[a-z]+[0-9]*. Add support for these rssd device names.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---

 grub-core/osdep/linux/getroot.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
index 90d92d3ad5c..6d9f4e5faa2 100644
--- a/grub-core/osdep/linux/getroot.c
+++ b/grub-core/osdep/linux/getroot.c
@@ -921,6 +921,19 @@ grub_util_part_to_disk (const char *os_dev, struct stat *st,
 	  return path;
 	}
 
+      /* If this is an rssd device. */
+      if ((strncmp ("rssd", p, 4) == 0) && p[4] >= 'a' && p[4] <= 'z')
+	{
+	  char *pp = p + 4;
+	  while (*pp >= 'a' && *pp <= 'z')
+	    pp++;
+	  if (*pp)
+	    *is_part = 1;
+	  /* /dev/rssd[a-z]+[0-9]* */
+	  *pp = '\0';
+	  return path;
+	}
+
       /* If this is a loop device */
       if ((strncmp ("loop", p, 4) == 0) && p[4] >= '0' && p[4] <= '9')
 	{
-- 
2.24.1