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Vladimir Sementsov-Ogievskiy d1fdf257d5 nbd: rename read_sync and friends 
Rename
  nbd_wr_syncv -> nbd_rwv
  read_sync -> nbd_read
  read_sync_eof -> nbd_read_eof
  write_sync -> nbd_write
  drop_sync -> nbd_drop

1. nbd_ prefix
   read_sync and write_sync are already shared, so it is good to have a
   namespace prefix. drop_sync will be shared, and read_sync_eof is
   related to read_sync, so let's rename them all.

2. _sync suffix
   _sync is related to the fact that nbd_wr_syncv doesn't return if a
   write to socket returns EAGAIN. The first implementation of
   nbd_wr_syncv (was wr_sync in 7a5ca8648b) just loops while getting
   EAGAIN, the current implementation yields in this case.
   Why we want to get rid of it:
   - it is normal for r/w functions to be synchronous, so having an
     additional suffix for it looks redundant (contrariwise, we have
     _aio suffix for async functions)
   - _sync suffix in block layer is used when function does flush (so
     using it for other thing is confusing a bit)
   - keep function names short after adding nbd_ prefix

3. for nbd_wr_syncv let's use more common notation 'rw'

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170602150150.258222-2-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15 11:04:06 +02:00
..
accounting.h Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00
aio.h aio: add missing aio_notify() to aio_enable_external() 2017-05-12 10:36:46 -04:00
block.h block: Update comments on BDRV_BLOCK_* meanings 2017-05-11 14:28:06 +02:00
block_backup.h Backup: export interfaces for extra serialization 2016-09-13 11:00:56 +01:00
block_int.h migration: Create include for migration snapshots 2017-06-01 18:49:23 +02:00
blockjob.h blockjob: introduce block_job_pause/resume_all 2017-05-24 16:38:51 -04:00
blockjob_int.h blockjob: use deferred_to_main_loop to indicate the coroutine has ended 2017-05-24 16:38:51 -04:00
dirty-bitmap.h block: More operations for meta dirty bitmap 2016-10-24 17:56:07 +02:00
nbd.h nbd: rename read_sync and friends 2017-06-15 11:04:06 +02:00
qapi.h block/qapi: Use blk_enable_write_cache() 2016-03-30 12:16:02 +02:00
raw-aio.h linux-aio: share one LinuxAioState within an AioContext 2016-07-18 15:09:31 +01:00
scsi.h * SCSI scanner support 2016-07-14 13:44:06 +01:00
snapshot.h include: Clean up includes 2016-02-23 12:43:05 +00:00
thread-pool.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
throttle-groups.h block: Move I/O throttling configuration functions to BlockBackend 2016-05-19 16:45:30 +02:00
write-threshold.h Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00