The patch titled
Subject: minixfs: fix block limit check
has been added to the -mm tree. Its filename is
minixfs-fix-block-limit-check.patch
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From: Vladimir Serbinenko <phcoder@xxxxxxxxx>
Subject: minixfs: fix block limit check
On minix2 and minix3 usually max_size is 7fffffff and the check in
question prohibits creation of last block spanning right before 7fffffff,
due to downward rounding during the division. Fix it by using
multiplication instead.
Signed-off-by: Vladimir Serbinenko <phcoder@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/minix/itree_v2.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN fs/minix/itree_v2.c~minixfs-fix-block-limit-check fs/minix/itree_v2.c
--- a/fs/minix/itree_v2.c~minixfs-fix-block-limit-check
+++ a/fs/minix/itree_v2.c
@@ -32,7 +32,8 @@ static int block_to_path(struct inode *
if (block < 0) {
printk("MINIX-fs: block_to_path: block %ld < 0 on dev %s\n",
block, bdevname(sb->s_bdev, b));
- } else if (block >= (minix_sb(inode->i_sb)->s_max_size/sb->s_blocksize)) {
+ } else if ((u64) block * (u64) sb->s_blocksize
+ >= minix_sb(inode->i_sb)->s_max_size) {
if (printk_ratelimit())
printk("MINIX-fs: block_to_path: "
"block %ld too big on dev %s\n",
_
Subject: Subject: minixfs: fix block limit check
Patches currently in -mm which might be from phcoder@xxxxxxxxx are
minixfs-fix-block-limit-check.patch
minixfs-fix-block-limit-check-fix.patch
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