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| author | Tejun Heo <tj@kernel.org> | 2008-08-25 19:47:23 +0900 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:06 +0200 |
| commit | 1f0142905d4812966831613847db38a66da29eb8 (patch) | |
| tree | 0db3c802fccfa7b2b8b74bfd0078258e8fb8e22d /include/linux/fs.h | |
| parent | bcce3de1be61e424deef35d1e86e86a35c4b6e65 (diff) | |
| download | lwn-1f0142905d4812966831613847db38a66da29eb8.tar.gz lwn-1f0142905d4812966831613847db38a66da29eb8.zip | |
block: adjust formatting for large minors and add ext_range sysfs attr
With extended minors and the soon-to-follow debug feature, large minor
numbers for block devices will be common. This patch does the
followings to make printouts pretty.
* Adapt print formats such that large minors don't break the
formatting.
* For extended MAJ:MIN, %02x%02x for MAJ:MIN used in
printk_all_partitions() doesn't cut it anymore. Update it such that
%03x:%05x is used if either MAJ or MIN doesn't fit in %02x.
* Implement ext_range sysfs attribute which shows total minors the
device can use including both conventional minor space and the
extended one.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 860689f541b1..02a9fb5a830c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1685,6 +1685,7 @@ extern void chrdev_show(struct seq_file *,off_t); /* fs/block_dev.c */ #define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */ +#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */ #ifdef CONFIG_BLOCK #define BLKDEV_MAJOR_HASH_SIZE 255 |