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Merge branch 'for-4.7/drivers' of git://git.kernel.dk/linux-block

Browse source 
Pull block driver updates from Jens Axboe:
 "On top of the core pull request, this is the drivers pull request for
  this merge window.  This contains:

   - Switch drivers to the new write back cache API, and kill off the
     flush flags.  From me.

   - Kill the discard support for the STEC pci-e flash driver.  It's
     trivially broken, and apparently unmaintained, so it's safer to
     just remove it.  From Jeff Moyer.

   - A set of lightnvm updates from the usual suspects (Matias/Javier,
     and Simon), and fixes from Arnd, Jeff Mahoney, Sagi, and Wenwei
     Tao.

   - A set of updates for NVMe:

        - Turn the controller state management into a proper state
          machine.  From Christoph.

        - Shuffling of code in preparation for NVMe-over-fabrics, also
          from Christoph.

        - Cleanup of the command prep part from Ming Lin.

        - Rewrite of the discard support from Ming Lin.

        - Deadlock fix for namespace removal from Ming Lin.

        - Use the now exported blk-mq tag helper for IO termination.
          From Sagi.

        - Various little fixes from Christoph, Guilherme, Keith, Ming
          Lin, Wang Sheng-Hui.

   - Convert mtip32xx to use the now exported blk-mq tag iter function,
     from Keith"

* 'for-4.7/drivers' of git://git.kernel.dk/linux-block: (74 commits)
  lightnvm: reserved space calculation incorrect
  lightnvm: rename nr_pages to nr_ppas on nvm_rq
  lightnvm: add is_cached entry to struct ppa_addr
  lightnvm: expose gennvm_mark_blk to targets
  lightnvm: remove mgt targets on mgt removal
  lightnvm: pass dma address to hardware rather than pointer
  lightnvm: do not assume sequential lun alloc.
  nvme/lightnvm: Log using the ctrl named device
  lightnvm: rename dma helper functions
  lightnvm: enable metadata to be sent to device
  lightnvm: do not free unused metadata on rrpc
  lightnvm: fix out of bound ppa lun id on bb tbl
  lightnvm: refactor set_bb_tbl for accepting ppa list
  lightnvm: move responsibility for bad blk mgmt to target
  lightnvm: make nvm_set_rqd_ppalist() aware of vblks
  lightnvm: remove struct factory_blks
  lightnvm: refactor device ops->get_bb_tbl()
  lightnvm: introduce nvm_for_each_lun_ppa() macro
  lightnvm: refactor dev->online_target to global nvm_targets
  lightnvm: rename nvm_targets to nvm_tgt_type
  ...
This commit is contained in:
Linus Torvalds 2016-05-17 16:03:32 -07:00
commit 24b9f0cf00
39 changed files with 966 additions and 798 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/md/bcache/super.c
View file

@ -816,7 +816,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
clear_bit(QUEUE_FLAG_ADD_RANDOM, &d->disk->queue->queue_flags);
set_bit(QUEUE_FLAG_DISCARD, &d->disk->queue->queue_flags);
blk_queue_flush(q, REQ_FLUSH|REQ_FUA);
blk_queue_write_cache(q, true, true);
return 0;
}

20
drivers/md/dm-table.c
View file

@ -1348,13 +1348,13 @@ static void dm_table_verify_integrity(struct dm_table *t)
static int device_flush_capable(struct dm_target *ti, struct dm_dev *dev,
sector_t start, sector_t len, void *data)
{
unsigned flush = (*(unsigned *)data);
unsigned long flush = (unsigned long) data;
struct request_queue *q = bdev_get_queue(dev->bdev);
return q && (q->flush_flags & flush);
return q && (q->queue_flags & flush);
}
static bool dm_table_supports_flush(struct dm_table *t, unsigned flush)
static bool dm_table_supports_flush(struct dm_table *t, unsigned long flush)
{
struct dm_target *ti;
unsigned i = 0;
@ -1375,7 +1375,7 @@ static bool dm_table_supports_flush(struct dm_table *t, unsigned flush)
return true;
if (ti->type->iterate_devices &&
ti->type->iterate_devices(ti, device_flush_capable, &flush))
ti->type->iterate_devices(ti, device_flush_capable, (void *) flush))
return true;
}
@ -1506,7 +1506,7 @@ static bool dm_table_supports_discards(struct dm_table *t)
void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
struct queue_limits *limits)
{
unsigned flush = 0;
bool wc = false, fua = false;
/*
* Copy table's limits to the DM device's request_queue
@ -1518,12 +1518,12 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
else
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
if (dm_table_supports_flush(t, REQ_FLUSH)) {
flush |= REQ_FLUSH;
if (dm_table_supports_flush(t, REQ_FUA))
flush |= REQ_FUA;
if (dm_table_supports_flush(t, (1UL << QUEUE_FLAG_WC))) {
wc = true;
if (dm_table_supports_flush(t, (1UL << QUEUE_FLAG_FUA)))
fua = true;
}
blk_queue_flush(q, flush);
blk_queue_write_cache(q, wc, fua);
if (!dm_table_discard_zeroes_data(t))
q->limits.discard_zeroes_data = 0;

2
drivers/md/md.c
View file

@ -5039,7 +5039,7 @@ static int md_alloc(dev_t dev, char *name)
disk->fops = &md_fops;
disk->private_data = mddev;
disk->queue = mddev->queue;
blk_queue_flush(mddev->queue, REQ_FLUSH | REQ_FUA);
blk_queue_write_cache(mddev->queue, true, true);
/* Allow extended partitions. This makes the
* 'mdp' device redundant, but we can't really
* remove it now.

3
drivers/md/raid5-cache.c
View file

@ -1188,6 +1188,7 @@ ioerr:
int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
{
struct request_queue *q = bdev_get_queue(rdev->bdev);
struct r5l_log *log;
if (PAGE_SIZE != 4096)
@ -1197,7 +1198,7 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
return -ENOMEM;
log->rdev = rdev;
log->need_cache_flush = (rdev->bdev->bd_disk->queue->flush_flags != 0);
log->need_cache_flush = test_bit(QUEUE_FLAG_WC, &q->queue_flags) != 0;
log->uuid_checksum = crc32c_le(~0, rdev->mddev->uuid,
sizeof(rdev->mddev->uuid));