diff options
| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2014-12-08 11:55:57 (GMT) |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2016-01-20 15:22:15 (GMT) |
| commit | bfca9a6d4b1322ba36235e8a652f05a9668ef59b (patch) | |
| tree | 863e7cad45616ddc8a5417919d696ced884ddd2e /fs/btrfs/raid56.c | |
| parent | e1746e8381cd2af421f75557b5cae3604fc18b35 (diff) | |
| download | linux-bfca9a6d4b1322ba36235e8a652f05a9668ef59b.tar.xz | |
btrfs: Fix calculation of rbio->dbitmap's size calculation
Current code is trying to calculate rbio->dbitmap's size to make it
align to sizeof(long), but implement haven't achived this object,
it is align to sizeof(char) instead.
This patch fixed above calculation, and use sizeof(long) instead of
fixed "8" to increate compatibility.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 6d70754..9ee11b4 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -966,8 +966,8 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_root *root, void *p; rbio = kzalloc(sizeof(*rbio) + num_pages * sizeof(struct page *) * 2 + - DIV_ROUND_UP(stripe_npages, BITS_PER_LONG / 8), - GFP_NOFS); + DIV_ROUND_UP(stripe_npages, BITS_PER_LONG) * + sizeof(long), GFP_NOFS); if (!rbio) return ERR_PTR(-ENOMEM); |