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| author | Tejun Heo <tj@kernel.org> | 2008-09-03 09:01:48 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:05 +0200 |
| commit | f331c0296f2a9fee0d396a70598b954062603015 (patch) | |
| tree | f74c467d58940131d97d90c4ea549843185e6ef0 /drivers/s390/block/dasd_proc.c | |
| parent | cf771cb5a7b716f3f9e532fd42a1e3a0a75adec5 (diff) | |
| download | kernel_samsung_smdk4412-f331c0296f2a9fee0d396a70598b954062603015.zip kernel_samsung_smdk4412-f331c0296f2a9fee0d396a70598b954062603015.tar.gz kernel_samsung_smdk4412-f331c0296f2a9fee0d396a70598b954062603015.tar.bz2 | |
block: don't depend on consecutive minor space
* Implement disk_devt() and part_devt() and use them to directly
access devt instead of computing it from ->major and ->first_minor.
Note that all references to ->major and ->first_minor outside of
block layer is used to determine devt of the disk (the part0) and as
->major and ->first_minor will continue to represent devt for the
disk, converting these users aren't strictly necessary. However,
convert them for consistency.
* Implement disk_max_parts() to avoid directly deferencing
genhd->minors.
* Update bdget_disk() such that it doesn't assume consecutive minor
space.
* Move devt computation from register_disk() to add_disk() and make it
the only one (all other usages use the initially determined value).
These changes clean up the code and will help disk->part dereference
fix and extended block device numbers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/s390/block/dasd_proc.c')
| -rw-r--r-- | drivers/s390/block/dasd_proc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index 03c0e40..e3b5c4d 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -76,7 +76,8 @@ dasd_devices_show(struct seq_file *m, void *v) /* Print kdev. */ if (block->gdp) seq_printf(m, " at (%3d:%6d)", - block->gdp->major, block->gdp->first_minor); + MAJOR(disk_devt(block->gdp)), + MINOR(disk_devt(block->gdp))); else seq_printf(m, " at (???:??????)"); /* Print device name. */ |