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authorTejun Heo <tj@kernel.org>2008-08-25 19:47:23 +0900
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:06 +0200
commit1f0142905d4812966831613847db38a66da29eb8 (patch)
tree0db3c802fccfa7b2b8b74bfd0078258e8fb8e22d /include
parentbcce3de1be61e424deef35d1e86e86a35c4b6e65 (diff)
downloadop-kernel-dev-1f0142905d4812966831613847db38a66da29eb8.zip
op-kernel-dev-1f0142905d4812966831613847db38a66da29eb8.tar.gz
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')
-rw-r--r--include/linux/fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 860689f..02a9fb5 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
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