diff options
| author | NeilBrown <neilb@suse.de> | 2006-01-06 11:20:56 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 19:34:09 +0300 |
| commit | 93c8cad03f02dbd1532a5413bdced25f000d5728 (patch) | |
| tree | 80930b6670c21088ed78362fe9281deba82ff7dd /drivers/md | |
| parent | 014236d2b8ec6faea2a6134ab8e019d84d67b524 (diff) | |
| download | linux-93c8cad03f02dbd1532a5413bdced25f000d5728.tar.xz | |
[PATCH] md: export rdev->data_offset via sysfs
Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index a8169564209d..742a82a4d10b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1664,11 +1664,34 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len) static struct rdev_sysfs_entry rdev_slot = __ATTR(slot, 0644, slot_show, slot_store); +static ssize_t +offset_show(mdk_rdev_t *rdev, char *page) +{ + return sprintf(page, "%llu\n", rdev->data_offset); +} + +static ssize_t +offset_store(mdk_rdev_t *rdev, const char *buf, size_t len) +{ + char *e; + unsigned long long offset = simple_strtoull(buf, &e, 10); + if (e==buf || (*e && *e != '\n')) + return -EINVAL; + if (rdev->mddev->pers) + return -EBUSY; + rdev->data_offset = offset; + return len; +} + +static struct rdev_sysfs_entry rdev_offset = +__ATTR(offset, 0644, offset_show, offset_store); + static struct attribute *rdev_default_attrs[] = { &rdev_state.attr, &rdev_super.attr, &rdev_errors.attr, &rdev_slot.attr, + &rdev_offset.attr, NULL, }; static ssize_t |