[PATCH] get rid of struct file use in blkdev_ioctl() BLKBSZSET
We need to do bd_claim() only if file hadn't been opened with O_EXCL
and then we have no need to use file itself as owner.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/block/ioctl.c b/block/ioctl.c
index bd214cb..14b7f2c 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -343,10 +343,11 @@
return -EINVAL;
if (get_user(n, (int __user *) arg))
return -EFAULT;
- if (bd_claim(bdev, file) < 0)
+ if (!(mode & FMODE_EXCL) && bd_claim(bdev, &bdev) < 0)
return -EBUSY;
ret = set_blocksize(bdev, n);
- bd_release(bdev);
+ if (!(mode & FMODE_EXCL))
+ bd_release(bdev);
return ret;
case BLKPG:
lock_kernel();