From 6af3a56e1dd4d95836a47214e5c60d5b749a5501 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 19 Sep 2008 03:08:13 -0400 Subject: [PATCH] [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 --- block/ioctl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/block/ioctl.c b/block/ioctl.c index bd214cb37f2..14b7f2c1066 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -343,10 +343,11 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd, 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();