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-rw-r--r--fs/ext4/balloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 1c8ef0e35f46..c4dd1103ccf1 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -747,7 +747,7 @@ find_next_usable_block(ext4_grpblk_t start, struct buffer_head *bh,
here = 0;
p = ((char *)bh->b_data) + (here >> 3);
- r = memscan(p, 0, (maxblocks - here + 7) >> 3);
+ r = memscan(p, 0, ((maxblocks + 7) >> 3) - (here >> 3));
next = (r - ((char *)bh->b_data)) << 3;
if (next < maxblocks && next >= start && ext4_test_allocatable(next, bh))