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| author | Feifei Xu <xufeifei@linux.vnet.ibm.com> | 2016-06-01 19:18:24 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-06-02 19:22:49 +0200 |
| commit | 0ef6447a3d2f014e49069c4da33f905ed803aa2a (patch) | |
| tree | 4a6640e63442d44d32bedc2a6c854d998bc79872 /fs/btrfs/tests | |
| parent | 5473e0c426ffaeaa19734987b153c2a7f33b8706 (diff) | |
| download | linux-0ef6447a3d2f014e49069c4da33f905ed803aa2a.tar.bz2 | |
Btrfs: Fix integer overflow when calculating bytes_per_bitmap
On ppc64, bytes_per_bitmap will be (65536*8*65536). Hence append UL to
fix integer overflow.
Reviewed-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Feifei Xu <xufeifei@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/tests')
| -rw-r--r-- | fs/btrfs/tests/free-space-tests.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c index 0eeb8f3d6b67..f3756d6b9ba2 100644 --- a/fs/btrfs/tests/free-space-tests.c +++ b/fs/btrfs/tests/free-space-tests.c @@ -22,7 +22,7 @@ #include "../disk-io.h" #include "../free-space-cache.h" -#define BITS_PER_BITMAP (PAGE_SIZE * 8) +#define BITS_PER_BITMAP (PAGE_SIZE * 8UL) /* * This test just does basic sanity checking, making sure we can add an extent |