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authorAndreas Schwab <schwab@suse.de>2008-10-31 22:39:46 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2008-12-04 04:22:55 -0500
commit1c925604e1038c7c65b91a92d14dc972b3a70a97 (patch)
tree5c4e2f24a7e972b053cd05a6c80dc319a35f6e9b /block
parent50c396d38c1a7f0c693579ec88cb4be3c0b0645e (diff)
downloadconfigs-1c925604e1038c7c65b91a92d14dc972b3a70a97.tar.gz
[PATCH] Fix block dev compat ioctl handling
Commit 33c2dca4957bd0da3e1af7b96d0758d97e708ef6 (trim file propagation in block/compat_ioctl.c) removed the handling of some ioctls from compat_blkdev_driver_ioctl. That caused them to be rejected as unknown by the compat layer. Signed-off-by: Andreas Schwab <schwab@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'block')
-rw-r--r--block/compat_ioctl.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 3d3e7a46f38..d43e6087bad 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -677,6 +677,29 @@ static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
case DVD_WRITE_STRUCT:
case DVD_AUTH:
arg = (unsigned long)compat_ptr(arg);
+ /* These intepret arg as an unsigned long, not as a pointer,
+ * so we must not do compat_ptr() conversion. */
+ case HDIO_SET_MULTCOUNT:
+ case HDIO_SET_UNMASKINTR:
+ case HDIO_SET_KEEPSETTINGS:
+ case HDIO_SET_32BIT:
+ case HDIO_SET_NOWERR:
+ case HDIO_SET_DMA:
+ case HDIO_SET_PIO_MODE:
+ case HDIO_SET_NICE:
+ case HDIO_SET_WCACHE:
+ case HDIO_SET_ACOUSTIC:
+ case HDIO_SET_BUSSTATE:
+ case HDIO_SET_ADDRESS:
+ case CDROMEJECT_SW:
+ case CDROM_SET_OPTIONS:
+ case CDROM_CLEAR_OPTIONS:
+ case CDROM_SELECT_SPEED:
+ case CDROM_SELECT_DISC:
+ case CDROM_MEDIA_CHANGED:
+ case CDROM_DRIVE_STATUS:
+ case CDROM_LOCKDOOR:
+ case CDROM_DEBUG:
break;
default:
/* unknown ioctl number */