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| author |   Horst Hummel <horst.hummel@de.ibm.com> | 2006-01-06 00:19:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:33:50 -0800 |
| commit | 9a7af289660dc749d7c58234191601046a9bf488 (patch) | |
| tree | d32057111e48c3463a87dd3a051c44064eeb86fc /drivers/s390/block/dasd_ioctl.c | |
| parent | [PATCH] s390: move s390_root_dev_* out of the cio layer (diff) | |
| download | linux-dev-9a7af289660dc749d7c58234191601046a9bf488.tar.xz linux-dev-9a7af289660dc749d7c58234191601046a9bf488.zip | |
[PATCH] s390: BIODASDPRRD ioctl return code
The IOCTL BIODASDPRRD had no return code for 'profiling is inactive' and
therefore tunedasd wrote misleading message for request-counter = 0.
Introduce return-code EIO for inactive profiling.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/s390/block/dasd_ioctl.c')
| -rw-r--r-- | drivers/s390/block/dasd_ioctl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 789595b3fa09..044b75371990 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -7,7 +7,7 @@ * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001 * - * $Revision: 1.47 $ + * $Revision: 1.50 $ * * i/o controls for the dasd driver. */ @@ -352,6 +352,9 @@ dasd_ioctl_read_profile(struct block_device *bdev, int no, long args) if (device == NULL) return -ENODEV; + if (dasd_profile_level == DASD_PROFILE_OFF) + return -EIO; + if (copy_to_user((long __user *) args, (long *) &device->profile, sizeof (struct dasd_profile_info_t))) return -EFAULT; |