linux.git/fs/zonefs, branch v5.8

zonefs: count pages after truncating the iterator

2020-07-20T08:59:31+00:00

Count pages after possibly truncating the iterator to the maximum zone
append size, not before.

Signed-off-by: Johannes Thumshirn 
Signed-off-by: Damien Le Moal

zonefs: Fix compilation warning

2020-07-20T08:57:50+00:00

Avoid the compilation warning "Variable 'ret' is reassigned a value
before the old one has been used." in zonefs_create_zgroup() by setting
ret for the error path only if an error happens.

Reported-by: kernel test robot 
Signed-off-by: Damien Le Moal

Merge tag 'zonefs-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

2020-06-04T20:50:13+00:00

Pull zonefs update from Damien Le Moal:
 "Only one patch in this pull request to cleanup handling of uuid using
  the import_uuid() helper, from Andy"

* tag 'zonefs-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: Replace uuid_copy() with import_uuid()

Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block

2020-06-02T22:29:19+00:00

Pull block updates from Jens Axboe:
 "Core block changes that have been queued up for this release:

   - Remove dead blk-throttle and blk-wbt code (Guoqing)

   - Include pid in blktrace note traces (Jan)

   - Don't spew I/O errors on wouldblock termination (me)

   - Zone append addition (Johannes, Keith, Damien)

   - IO accounting improvements (Konstantin, Christoph)

   - blk-mq hardware map update improvements (Ming)

   - Scheduler dispatch improvement (Salman)

   - Inline block encryption support (Satya)

   - Request map fixes and improvements (Weiping)

   - blk-iocost tweaks (Tejun)

   - Fix for timeout failing with error injection (Keith)

   - Queue re-run fixes (Douglas)

   - CPU hotplug improvements (Christoph)

   - Queue entry/exit improvements (Christoph)

   - Move DMA drain handling to the few drivers that use it (Christoph)

   - Partition handling cleanups (Christoph)"

* tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block: (127 commits)
  block: mark bio_wouldblock_error() bio with BIO_QUIET
  blk-wbt: rename __wbt_update_limits to wbt_update_limits
  blk-wbt: remove wbt_update_limits
  blk-throttle: remove tg_drain_bios
  blk-throttle: remove blk_throtl_drain
  null_blk: force complete for timeout request
  blk-mq: drain I/O when all CPUs in a hctx are offline
  blk-mq: add blk_mq_all_tag_iter
  blk-mq: open code __blk_mq_alloc_request in blk_mq_alloc_request_hctx
  blk-mq: use BLK_MQ_NO_TAG in more places
  blk-mq: rename BLK_MQ_TAG_FAIL to BLK_MQ_NO_TAG
  blk-mq: move more request initialization to blk_mq_rq_ctx_init
  blk-mq: simplify the blk_mq_get_request calling convention
  blk-mq: remove the bio argument to ->prepare_request
  nvme: force complete cancelled requests
  blk-mq: blk-mq: provide forced completion method
  block: fix a warning when blkdev.h is included for !CONFIG_BLOCK builds
  block: blk-crypto-fallback: remove redundant initialization of variable err
  block: reduce part_stat_lock() scope
  block: use __this_cpu_add() instead of access by smp_processor_id()
  ...

iomap: convert from readpages to readahead

2020-06-02T17:59:07+00:00

Use the new readahead operation in iomap.  Convert XFS and ZoneFS to use
it.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Andrew Morton 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Darrick J. Wong 
Reviewed-by: William Kucharski 
Cc: Chao Yu 
Cc: Cong Wang 
Cc: Dave Chinner 
Cc: Eric Biggers 
Cc: Gao Xiang 
Cc: Jaegeuk Kim 
Cc: John Hubbard 
Cc: Joseph Qi 
Cc: Junxiao Bi 
Cc: Michal Hocko 
Cc: Zi Yan 
Cc: Johannes Thumshirn 
Cc: Miklos Szeredi 
Link: http://lkml.kernel.org/r/20200414150233.24495-26-willy@infradead.org
Signed-off-by: Linus Torvalds

block: remove the error_sector argument to blkdev_issue_flush

2020-05-22T14:45:46+00:00

The argument isn't used by any caller, and drivers don't fill out
bi_sector for flush requests either.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

zonefs: use REQ_OP_ZONE_APPEND for sync DIO

2020-05-13T02:36:28+00:00

Synchronous direct I/O to a sequential write only zone can be issued using
the new REQ_OP_ZONE_APPEND request operation. As dispatching multiple
BIOs can potentially result in reordering, we cannot support asynchronous
IO via this interface.

We also can only dispatch up to queue_max_zone_append_sectors() via the
new zone-append method and have to return a short write back to user-space
in case an IO larger than queue_max_zone_append_sectors() has been issued.

Signed-off-by: Johannes Thumshirn 
Acked-by: Damien Le Moal 
Signed-off-by: Jens Axboe

zonefs: Replace uuid_copy() with import_uuid()

2020-04-26T23:51:39+00:00

There is a specific API to treat raw data as UUID, i.e. import_uuid().
Use it instead of uuid_copy() with explicit casting.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Damien Le Moal

zonfs: Fix handling of read-only zones

2020-03-25T02:28:26+00:00

The write pointer of zones in the read-only consition is defined as
invalid by the SCSI ZBC and ATA ZAC specifications. It is thus not
possible to determine the correct size of a read-only zone file on
mount. Fix this by handling read-only zones in the same manner as
offline zones by disabling all accesses to the zone (read and write)
and initializing the inode size of the read-only zone to 0).

For zones found to be in the read-only condition at runtime, only
disable write access to the zone and keep the size of the zone file to
its last updated value to allow the user to recover previously written
data.

Also fix zonefs documentation file to reflect this change.

Signed-off-by: Damien Le Moal 
Reviewed-by: Johannes Thumshirn

zonefs: select FS_IOMAP

2020-02-26T07:58:15+00:00

Zonefs makes use of iomap internally, so it should also select iomap in
Kconfig.

Signed-off-by: Johannes Thumshirn 
Signed-off-by: Damien Le Moal