lkml.org 
[lkml]   [2017]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH 3.2 016/199] ext4: fix mballoc breakage with 64k block size
3.2.87-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Chandan Rajendra <chandan@linux.vnet.ibm.com>

commit 69e43e8cc971a79dd1ee5d4343d8e63f82725123 upstream.

'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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ext4/mballoc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -652,7 +652,7 @@ static void ext4_mb_mark_free_simple(str
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));

\
 
 \ /
  Last update: 2017-03-10 13:41    [W:0.701 / U:0.396 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site