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dm raid: correct resizing state relative to reshape space in ctr

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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>
This commit is contained in:
Heinz Mauelshagen 2017-12-02 01:03:50 +01:00 committed by Mike Snitzer
parent 052b2b1e06
commit 7501537ee3
1 changed files with 6 additions and 4 deletions
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10
drivers/md/dm-raid.c
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@ -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);