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md: remove the 'super' sysfs attribute from devices in an 'md' array

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Exposing the binary blob which is the md 'super-block' via sysfs doesn't
really fit with the whole sysfs model, and ever since commit
8118a859dc ("sysfs: fix off-by-one error
in fill_read_buffer()") it doesn't actually work at all (as the size of
the blob is often one page).

(akpm: as in, fs/sysfs/file.c:fill_read_buffer() goes BUG)

So just remove it altogether.  It isn't really useful.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
NeilBrown 2008-03-19 17:00:44 -07:00 committed by Linus Torvalds
parent 43d8eac44f
commit 0e82989d95
1 changed files with 0 additions and 12 deletions
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12
drivers/md/md.c
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@ -1863,17 +1863,6 @@ state_store(mdk_rdev_t *rdev, const char *buf, size_t len)
static struct rdev_sysfs_entry rdev_state = static struct rdev_sysfs_entry rdev_state =
__ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store); __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
static ssize_t
super_show(mdk_rdev_t *rdev, char *page)
{
if (rdev->sb_loaded && rdev->sb_size) {
memcpy(page, page_address(rdev->sb_page), rdev->sb_size);
return rdev->sb_size;
} else
return 0;
}
static struct rdev_sysfs_entry rdev_super = __ATTR_RO(super);
static ssize_t static ssize_t
errors_show(mdk_rdev_t *rdev, char *page) errors_show(mdk_rdev_t *rdev, char *page)
{ {
@ -2060,7 +2049,6 @@ __ATTR(size, S_IRUGO|S_IWUSR, rdev_size_show, rdev_size_store);
static struct attribute *rdev_default_attrs[] = { static struct attribute *rdev_default_attrs[] = {
&rdev_state.attr, &rdev_state.attr,
&rdev_super.attr,
&rdev_errors.attr, &rdev_errors.attr,
&rdev_slot.attr, &rdev_slot.attr,
&rdev_offset.attr, &rdev_offset.attr,