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authorChandan Rajendra <chandan@linux.vnet.ibm.com>2016-11-15 05:04:37 +0300
committerTheodore Ts'o <tytso@mit.edu>2016-11-15 05:04:37 +0300
commit69e43e8cc971a79dd1ee5d4343d8e63f82725123 (patch)
tree8e1933d278aaf637af3393ea4c48e38ca3f389c9 /fs/ext4
parent1566a48aaa10c6bb29b9a69dd8279f9a4fc41e35 (diff)
downloadlinux-69e43e8cc971a79dd1ee5d4343d8e63f82725123.tar.xz
ext4: fix mballoc breakage with 64k block size
'border' variable is set to a value of 2 times the block size of the underlying filesystem. With 64k block size, the resulting value won't fit into a 16-bit variable. Hence this commit changes the data type of 'border' to 'unsigned int'. Fixes: c9de560ded61f Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/mballoc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f418f55c2bbe..a937ac7ef99f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -669,7 +669,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb,
ext4_grpblk_t min;
ext4_grpblk_t max;
ext4_grpblk_t chunk;
- unsigned short border;
+ unsigned int border;
BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));