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Merge tag 'for-4.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

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Pull device mapper updates from Mike Snitzer:

 - Add the ability to use select or poll /dev/mapper/control to wait for
   events from multiple DM devices.

 - Convert DM's printk macros over to using pr_<level> macros.

 - Add a big-endian variant of plain64 IV to dm-crypt.

 - Add support for zoned (aka SMR) devices to DM core. DM kcopyd was
   also improved to provide a sequential write feature needed by zoned
   devices.

 - Introduce DM zoned target that provides support for host-managed
   zoned devices, the result dm-zoned device acts as a drive-managed
   interface to the underlying host-managed device.

 - A DM raid fix to avoid using BUG() for error handling.

* tag 'for-4.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm zoned: fix overflow when converting zone ID to sectors
  dm raid: stop using BUG() in __rdev_sectors()
  dm zoned: drive-managed zoned block device target
  dm kcopyd: add sequential write feature
  dm linear: add support for zoned block devices
  dm flakey: add support for zoned block devices
  dm: introduce dm_remap_zone_report()
  dm: fix REQ_OP_ZONE_REPORT bio handling
  dm: fix REQ_OP_ZONE_RESET bio handling
  dm table: add zoned block devices validation
  dm: convert DM printk macros to pr_<level> macros
  dm crypt: add big-endian variant of plain64 IV
  dm bio prison: use rb_entry() rather than container_of()
  dm ioctl: report event number in DM_LIST_DEVICES
  dm ioctl: add a new DM_DEV_ARM_POLL ioctl
  dm: add basic support for using the select or poll function
This commit is contained in:
Linus Torvalds
2017-07-06 11:54:56 -07:00
parent 9871ab22f2 3908c9839b
commit 3a564bb3a8
21 changed files with 4955 additions and 75 deletions
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13
drivers/md/dm-raid.c
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@@ -1571,7 +1571,7 @@ static sector_t __rdev_sectors(struct raid_set *rs)
return rdev->sectors;
}
BUG(); /* Constructor ensures we got some. */
return 0;
}
/* Calculate the sectors per device and per array used for @rs */
@@ -2941,7 +2941,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
bool resize;
struct raid_type *rt;
unsigned int num_raid_params, num_raid_devs;
sector_t calculated_dev_sectors;
sector_t calculated_dev_sectors, rdev_sectors;
struct raid_set *rs = NULL;
const char *arg;
struct rs_layout rs_layout;
@@ -3017,7 +3017,14 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
if (r)
goto bad;
resize = calculated_dev_sectors != __rdev_sectors(rs);
rdev_sectors = __rdev_sectors(rs);
if (!rdev_sectors) {
ti->error = "Invalid rdev size";
r = -EINVAL;
goto bad;
}
resize = calculated_dev_sectors != rdev_sectors;
INIT_WORK(&rs->md.event_work, do_table_event);
ti->private = rs;