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author | Peter Rajnoha <prajnoha@redhat.com> | 2009-06-22 05:12:29 -0400 |
---|---|---|
committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 05:12:29 -0400 |
commit | 486d220fe4909b5745c4faa67faddd30a707abe2 (patch) | |
tree | eb7184f8299a5446532a6ff96d48fcdc3a461268 | |
parent | 1b6da754594e6e26c24e6fbc1a34f9c03e4617a3 (diff) |
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: Peter Rajnoha <prajnoha@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
-rw-r--r-- | drivers/md/dm-sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/md/dm-sysfs.c b/drivers/md/dm-sysfs.c index a2a45e6c7c8b..4b045903a4e2 100644 --- a/drivers/md/dm-sysfs.c +++ b/drivers/md/dm-sysfs.c | |||
@@ -57,12 +57,21 @@ static ssize_t dm_attr_uuid_show(struct mapped_device *md, char *buf) | |||
57 | return strlen(buf); | 57 | return strlen(buf); |
58 | } | 58 | } |
59 | 59 | ||
60 | static ssize_t dm_attr_suspended_show(struct mapped_device *md, char *buf) | ||
61 | { | ||
62 | sprintf(buf, "%d\n", dm_suspended(md)); | ||
63 | |||
64 | return strlen(buf); | ||
65 | } | ||
66 | |||
60 | static DM_ATTR_RO(name); | 67 | static DM_ATTR_RO(name); |
61 | static DM_ATTR_RO(uuid); | 68 | static DM_ATTR_RO(uuid); |
69 | static DM_ATTR_RO(suspended); | ||
62 | 70 | ||
63 | static struct attribute *dm_attrs[] = { | 71 | static struct attribute *dm_attrs[] = { |
64 | &dm_attr_name.attr, | 72 | &dm_attr_name.attr, |
65 | &dm_attr_uuid.attr, | 73 | &dm_attr_uuid.attr, |
74 | &dm_attr_suspended.attr, | ||
66 | NULL, | 75 | NULL, |
67 | }; | 76 | }; |
68 | 77 | ||