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Commit 69e43e8c authored by Chandan Rajendra's avatar Chandan Rajendra Committed by Theodore Ts'o
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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: c9de560d
Signed-off-by: default avatarChandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
Reviewed-by: default avatarAndreas Dilger <adilger@dilger.ca>
Cc: stable@vger.kernel.org
parent 1566a48a

fs/ext4/mballoc.c

+1 −1
Original line number Diff line number Diff line
@@ -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));