Btrfs: fix the new inspection ioctls for 32 bit compat
The new ioctls to follow backrefs are not clean for 32/64 bit
compat. This reworks them for u64s everywhere. They are brand new, so
there are no problems with changing the interface now.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index cc98939..4a34c47 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2895,7 +2895,7 @@
{
int ret = 0;
int i;
- unsigned long rel_ptr;
+ u64 rel_ptr;
int size;
struct btrfs_ioctl_ino_path_args *ipa = NULL;
struct inode_fs_paths *ipath = NULL;
@@ -2930,11 +2930,11 @@
goto out;
for (i = 0; i < ipath->fspath->elem_cnt; ++i) {
- rel_ptr = ipath->fspath->str[i] - (char *)ipath->fspath->str;
- ipath->fspath->str[i] = (void *)rel_ptr;
+ rel_ptr = ipath->fspath->val[i] - (u64)ipath->fspath->val;
+ ipath->fspath->val[i] = rel_ptr;
}
- ret = copy_to_user(ipa->fspath, ipath->fspath, size);
+ ret = copy_to_user((void *)ipa->fspath, (void *)ipath->fspath, size);
if (ret) {
ret = -EFAULT;
goto out;
@@ -3017,7 +3017,7 @@
if (ret < 0)
goto out;
- ret = copy_to_user(loi->inodes, inodes, size);
+ ret = copy_to_user((void *)loi->inodes, (void *)inodes, size);
if (ret)
ret = -EFAULT;