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authorArnd Bergmann <arnd@arndb.de>2007-10-09 13:23:51 +0200
committerJens Axboe <axboe@carl.home.kernel.dk>2007-10-10 09:26:00 +0200
commitf58c4c0a17e500e767473598b3deafaa1d64051d (patch)
treef8fbf3a2ce10a9fccf41f2f96bca1ca71b3dd77e /block/ioctl.c
parentd2bbf3da3759d04cd5836955cc59c8ae96092831 (diff)
downloadlinaro-lsk-f58c4c0a17e500e767473598b3deafaa1d64051d.tar.gz
compat_ioctl: move common block ioctls to compat_blkdev_ioctl
Make compat_blkdev_ioctl and blkdev_ioctl reflect the respective native versions. This is somewhat more efficient and makes it easier to keep the two in sync. Also get rid of the bogus handling for broken_blkgetsize and the duplicate entry for BLKRASET. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/ioctl.c')
-rw-r--r--block/ioctl.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/block/ioctl.c b/block/ioctl.c
index f7e3e8abf88..52d6385216a 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -217,6 +217,10 @@ int blkdev_driver_ioctl(struct inode *inode, struct file *file,
}
EXPORT_SYMBOL_GPL(blkdev_driver_ioctl);
+/*
+ * always keep this in sync with compat_blkdev_ioctl() and
+ * compat_blkdev_locked_ioctl()
+ */
int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
unsigned long arg)
{
@@ -284,21 +288,4 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
return blkdev_driver_ioctl(inode, file, disk, cmd, arg);
}
-
-/* Most of the generic ioctls are handled in the normal fallback path.
- This assumes the blkdev's low level compat_ioctl always returns
- ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
- struct block_device *bdev = file->f_path.dentry->d_inode->i_bdev;
- struct gendisk *disk = bdev->bd_disk;
- int ret = -ENOIOCTLCMD;
- if (disk->fops->compat_ioctl) {
- lock_kernel();
- ret = disk->fops->compat_ioctl(file, cmd, arg);
- unlock_kernel();
- }
- return ret;
-}
-
EXPORT_SYMBOL_GPL(blkdev_ioctl);