Cast unsigned int to sector_t before shifting. Otherwise, the target
length overflows and becomes incorrect.
Also fix an incorrect setting of the target suspend
operation.
Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx>
---
drivers/md/dm-zoned-target.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index 4438f30..f947166 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -773,7 +773,7 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv)
ti->split_discard_bios = true;
/* The exposed capacity is the number of chunks that can be mapped */
- ti->len = dmz_nr_chunks(dmz->metadata) << dev->zone_nr_sectors_shift;
+ ti->len = (sector_t)dmz_nr_chunks(dmz->metadata) << dev->zone_nr_sectors_shift;
/* Zone BIO */
dmz->bio_set = bioset_create_nobvec(DMZ_MIN_BIOS, 0);
@@ -944,7 +944,8 @@ static struct target_type dmz_type = {
.end_io = dmz_end_io,
.io_hints = dmz_io_hints,
.prepare_ioctl = dmz_prepare_ioctl,
- .suspend = dmz_suspend,
+ .presuspend = dmz_suspend,
+ .presuspend_undo = dmz_resume,
.resume = dmz_resume,
.iterate_devices = dmz_iterate_devices,
};
--
2.9.4
--
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