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[PATCH] md: document sysfs usage of md, and make a couple of small refinements

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Document in Documentation/md.txt the files that now appear in sysfs, and make
a couple of small refinements to exactly when 'level' and 'raid_disks' are
empty, to make it match the documentation.

Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown
2005-11-08 21:39:45 -08:00
committed by Linus Torvalds
parent 7eec314d75
commit bb636547b0
2 changed files with 122 additions and 1 deletions
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4
drivers/md/md.c
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@@ -1727,7 +1727,7 @@ static ssize_t
level_show(mddev_t *mddev, char *page)
{
mdk_personality_t *p = mddev->pers;
if (p == NULL)
if (p == NULL && mddev->raid_disks == 0)
return 0;
if (mddev->level >= 0)
return sprintf(page, "RAID-%d\n", mddev->level);
@@ -1740,6 +1740,8 @@ static struct md_sysfs_entry md_level = __ATTR_RO(level);
static ssize_t
raid_disks_show(mddev_t *mddev, char *page)
{
if (mddev->raid_disks == 0)
return 0;
return sprintf(page, "%d\n", mddev->raid_disks);
}