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authorChris Mason <chris.mason@oracle.com>2007-06-12 07:43:08 -0400
committerDavid Woodhouse <dwmw2@hera.kernel.org>2007-06-12 07:43:08 -0400
commit84f54cfa78c81991e087309a9b379f25f1ffdb10 (patch)
tree2f2576ea31a276504e99090473e2c6829d1a9024 /fs/btrfs/file-item.c
parent39279cc3d2704cfbf9c35dcb5bdd392159ae4625 (diff)
Btrfs: 64 bit div fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r--fs/btrfs/file-item.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 0782e924ddeb..fb8c214160c1 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -239,7 +239,8 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
if (isize <= key.offset)
return 0;
new_item_span = isize - key.offset;
- blocks = (new_item_span + root->blocksize - 1) / root->blocksize;
+ blocks = (new_item_span + root->blocksize - 1) >>
+ root->fs_info->sb->s_blocksize_bits;
new_item_size = blocks * BTRFS_CRC32_SIZE;
if (new_item_size >= btrfs_item_size(leaf->items + slot))
return 0;