From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Sat, 9 Apr 2011 19:55:50 +0000 (+0200)
Subject: Fix RAID1/duplicated chunk size calculation
X-Git-Tag: 1.99~64^2~6
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=099821e9e4d55abe11054380068decda0cec4a17;p=thirdparty%2Fgrub.git

Fix RAID1/duplicated chunk size calculation
---

diff --git a/grub-core/fs/btrfs.c b/grub-core/fs/btrfs.c
index ac90c055a..7632d535c 100644
--- a/grub-core/fs/btrfs.c
+++ b/grub-core/fs/btrfs.c
@@ -664,13 +664,9 @@ grub_btrfs_read_logical (struct grub_btrfs_data *data,
 	  case GRUB_BTRFS_CHUNK_TYPE_RAID1:
 	    /* FIXME: Use redundancy.  */
 	    {
-	      grub_uint32_t stripe_length;
-	      stripe_length = grub_divmod64 (grub_le_to_cpu64 (chunk->size),
-					     grub_le_to_cpu16 (chunk->nstripes),
-					     NULL);
 	      stripen = 0;
 	      stripe_offset = off;
-	      csize = stripe_length - off;
+	      csize = grub_le_to_cpu64 (chunk->size) - off;
 	      redundancy = 2;
 	      break;
 	    }