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authorHeinz Mauelshagen <heinzm@redhat.com>2017-12-02 01:03:50 +0100
committerMike Snitzer <snitzer@redhat.com>2017-12-08 10:59:57 -0500
commit7501537ee3a5e6bd01c0084af141e4fa84e652c0 (patch)
tree3d8c258ec9436fbfcc2f08ef5e42c5e7f2d390cb /drivers/md/dm-raid.c
parent052b2b1e0689b30af2608d908916a16e9dbd0919 (diff)
dm raid: correct resizing state relative to reshape space in ctr
Pay attention to existing reshape space to define if a raid set needs resizing. Otherwise we can hit "Can't resize a reshaping raid set" when a reshape is being requested. Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-raid.c')
-rw-r--r--drivers/md/dm-raid.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index c3ea4337bf51..c4b0cb181fbc 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -2969,10 +2969,10 @@ static void configure_discard_support(struct raid_set *rs)
static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
{
int r;
- bool resize;
+ bool resize = false;
struct raid_type *rt;
unsigned int num_raid_params, num_raid_devs;
- sector_t calculated_dev_sectors, rdev_sectors;
+ sector_t calculated_dev_sectors, rdev_sectors, reshape_sectors;
struct raid_set *rs = NULL;
const char *arg;
struct rs_layout rs_layout;
@@ -3055,7 +3055,10 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad;
}
- resize = calculated_dev_sectors != rdev_sectors;
+
+ reshape_sectors = _get_reshape_sectors(rs);
+ if (calculated_dev_sectors != rdev_sectors)
+ resize = calculated_dev_sectors != (reshape_sectors ? rdev_sectors - reshape_sectors : rdev_sectors);
INIT_WORK(&rs->md.event_work, do_table_event);
ti->private = rs;
@@ -3178,7 +3181,6 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
mddev_lock_nointr(&rs->md);
r = md_run(&rs->md);
rs->md.in_sync = 0; /* Assume already marked dirty */
-
if (r) {
ti->error = "Failed to run raid array";
mddev_unlock(&rs->md);