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| author | Peter Rajnoha <prajnoha@redhat.com> | 2009-06-22 11:12:29 +0200 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 11:12:29 +0200 |
| commit | 486d220fe4909b5745c4faa67faddd30a707abe2 (patch) | |
| tree | eb7184f8299a5446532a6ff96d48fcdc3a461268 | |
| parent | dm table: improve warning message when devices not freed before destruction (diff) | |
| download | linux-486d220fe4909b5745c4faa67faddd30a707abe2.tar.xz linux-486d220fe4909b5745c4faa67faddd30a707abe2.zip | |
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) 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, }; |