Blame SOURCES/0047-grub-install-support-for-partitioned-partx-loop-devi.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Mike Gilbert <floppym@gentoo.org>
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Date: Sun, 26 Jan 2014 02:56:04 +0100
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Subject: [PATCH] grub-install: support for partitioned partx loop devices.
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	* grub-core/osdep/linux/getroot.c (grub_util_part_to_disk): Detect
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	/dev/loopX as being the parent of /dev/loopXpY.
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---
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 grub-core/osdep/linux/getroot.c | 13 +++++++++++++
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 ChangeLog                       |  7 +++++++
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 2 files changed, 20 insertions(+)
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diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
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index 772de0a9bc4..19581d32997 100644
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--- a/grub-core/osdep/linux/getroot.c
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+++ b/grub-core/osdep/linux/getroot.c
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@@ -883,6 +883,19 @@ grub_util_part_to_disk (const char *os_dev, struct stat *st,
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 	  *pp = '\0';
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 	  return path;
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 	}
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+
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+      /* If this is a loop device */
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+      if ((strncmp ("loop", p, 4) == 0) && p[4] >= '0' && p[4] <= '9')
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+	{
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+	  char *pp = p + 4;
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+	  while (*pp >= '0' && *pp <= '9')
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+	    pp++;
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+	  if (*pp == 'p')
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+	    *is_part = 1;
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+	  /* /dev/loop[0-9]+p[0-9]* */
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+	  *pp = '\0';
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+	  return path;
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+	}
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     }
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   return path;
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diff --git a/ChangeLog b/ChangeLog
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index 67b4d5c2add..bbec1e70bbd 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,10 @@
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+2014-01-26  Mike Gilbert <floppym@gentoo.org>
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+
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+	grub-install: support for partitioned partx loop devices.
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+
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+	* grub-core/osdep/linux/getroot.c (grub_util_part_to_disk): Detect
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+	/dev/loopX as being the parent of /dev/loopXpY.
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+
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 2014-01-26  Vladimir Serbinenko  <phcoder@gmail.com>
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 	* grub-core/term/serial.c (grub_serial_register): Fix invalid free.