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Commit 486d220f authored by Peter Rajnoha's avatar Peter Rajnoha Committed by Alasdair G Kergon
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dm: sysfs add suspended attribute 



Add a file named 'suspended' to each device-mapper device directory in
sysfs.  It holds the value 1 while the device is suspended.  Otherwise
it holds 0.

Signed-off-by: default avatarPeter Rajnoha <prajnoha@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent 1b6da754

drivers/md/dm-sysfs.c

+9 −0
Original line number Diff line number Diff line
@@ -57,12 +57,21 @@ static ssize_t dm_attr_uuid_show(struct mapped_device *md, char *buf) 
	return strlen(buf);

}



static ssize_t dm_attr_suspended_show(struct mapped_device *md, char *buf)

{

	sprintf(buf, "%d\n", dm_suspended(md));



	return strlen(buf);

}



static DM_ATTR_RO(name);

static DM_ATTR_RO(uuid);

static DM_ATTR_RO(suspended);



static struct attribute *dm_attrs[] = {

	&dm_attr_name.attr,

	&dm_attr_uuid.attr,

	&dm_attr_suspended.attr,

	NULL,

};