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Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block

Browse source 
Pull core block layer updates from Jens Axboe:
 "This is the main pull request for block storage for 4.15-rc1.

  Nothing out of the ordinary in here, and no API changes or anything
  like that. Just various new features for drivers, core changes, etc.
  In particular, this pull request contains:

   - A patch series from Bart, closing the whole on blk/scsi-mq queue
     quescing.

   - A series from Christoph, building towards hidden gendisks (for
     multipath) and ability to move bio chains around.

   - NVMe
        - Support for native multipath for NVMe (Christoph).
        - Userspace notifications for AENs (Keith).
        - Command side-effects support (Keith).
        - SGL support (Chaitanya Kulkarni)
        - FC fixes and improvements (James Smart)
        - Lots of fixes and tweaks (Various)

   - bcache
        - New maintainer (Michael Lyle)
        - Writeback control improvements (Michael)
        - Various fixes (Coly, Elena, Eric, Liang, et al)

   - lightnvm updates, mostly centered around the pblk interface
     (Javier, Hans, and Rakesh).

   - Removal of unused bio/bvec kmap atomic interfaces (me, Christoph)

   - Writeback series that fix the much discussed hundreds of millions
     of sync-all units. This goes all the way, as discussed previously
     (me).

   - Fix for missing wakeup on writeback timer adjustments (Yafang
     Shao).

   - Fix laptop mode on blk-mq (me).

   - {mq,name} tupple lookup for IO schedulers, allowing us to have
     alias names. This means you can use 'deadline' on both !mq and on
     mq (where it's called mq-deadline). (me).

   - blktrace race fix, oopsing on sg load (me).

   - blk-mq optimizations (me).

   - Obscure waitqueue race fix for kyber (Omar).

   - NBD fixes (Josef).

   - Disable writeback throttling by default on bfq, like we do on cfq
     (Luca Miccio).

   - Series from Ming that enable us to treat flush requests on blk-mq
     like any other request. This is a really nice cleanup.

   - Series from Ming that improves merging on blk-mq with schedulers,
     getting us closer to flipping the switch on scsi-mq again.

   - BFQ updates (Paolo).

   - blk-mq atomic flags memory ordering fixes (Peter Z).

   - Loop cgroup support (Shaohua).

   - Lots of minor fixes from lots of different folks, both for core and
     driver code"

* 'for-4.15/block' of git://git.kernel.dk/linux-block: (294 commits)
  nvme: fix visibility of "uuid" ns attribute
  blk-mq: fixup some comment typos and lengths
  ide: ide-atapi: fix compile error with defining macro DEBUG
  blk-mq: improve tag waiting setup for non-shared tags
  brd: remove unused brd_mutex
  blk-mq: only run the hardware queue if IO is pending
  block: avoid null pointer dereference on null disk
  fs: guard_bio_eod() needs to consider partitions
  xtensa/simdisk: fix compile error
  nvme: expose subsys attribute to sysfs
  nvme: create 'slaves' and 'holders' entries for hidden controllers
  block: create 'slaves' and 'holders' entries for hidden gendisks
  nvme: also expose the namespace identification sysfs files for mpath nodes
  nvme: implement multipath access to nvme subsystems
  nvme: track shared namespaces
  nvme: introduce a nvme_ns_ids structure
  nvme: track subsystems
  block, nvme: Introduce blk_mq_req_flags_t
  block, scsi: Make SCSI quiesce and resume work reliably
  block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
  ...
This commit is contained in:
Linus Torvalds 2017-11-14 15:32:19 -08:00
commit e2c5923c34
131 changed files with 5470 additions and 3089 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/ide/Kconfig
View file

@ -117,7 +117,9 @@ config BLK_DEV_DELKIN
config BLK_DEV_IDECD
tristate "Include IDE/ATAPI CDROM support"
depends on BLK_DEV
select IDE_ATAPI
select CDROM
---help---
If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is
a newer protocol used by IDE CD-ROM and TAPE drives, similar to the

6
drivers/ide/ide-atapi.c
View file

@ -282,7 +282,7 @@ int ide_cd_expiry(ide_drive_t *drive)
struct request *rq = drive->hwif->rq;
unsigned long wait = 0;
debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
debug_log("%s: scsi_req(rq)->cmd[0]: 0x%x\n", __func__, scsi_req(rq)->cmd[0]);
/*
* Some commands are *slow* and normally take a long time to complete.
@ -463,7 +463,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
return ide_do_reset(drive);
}
debug_log("[cmd %x]: check condition\n", rq->cmd[0]);
debug_log("[cmd %x]: check condition\n", scsi_req(rq)->cmd[0]);
/* Retry operation */
ide_retry_pc(drive);
@ -531,7 +531,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
ide_pad_transfer(drive, write, bcount);
debug_log("[cmd %x] transferred %d bytes, padded %d bytes, resid: %u\n",
rq->cmd[0], done, bcount, scsi_req(rq)->resid_len);
scsi_req(rq)->cmd[0], done, bcount, scsi_req(rq)->resid_len);
/* And set the interrupt handler again */
ide_set_handler(drive, ide_pc_intr, timeout);

4
drivers/ide/ide-pm.c
View file

@ -90,9 +90,9 @@ int generic_ide_resume(struct device *dev)
}
memset(&rqpm, 0, sizeof(rqpm));
rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM);
rq = blk_get_request_flags(drive->queue, REQ_OP_DRV_IN,
BLK_MQ_REQ_PREEMPT);
ide_req(rq)->type = ATA_PRIV_PM_RESUME;
rq->rq_flags |= RQF_PREEMPT;
rq->special = &rqpm;
rqpm.pm_step = IDE_PM_START_RESUME;
rqpm.pm_state = PM_EVENT_ON;