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Block jobs & NBD patches

Browse source 
v2: - add arguments to QEMUMachine constructor in test, to make it work
       on arm in gitlab pipeline
     - use bdrv_inc_in_flight() / bdrv_dec_in_flight() instead of direct
       manipulation with bs->in_flight
 
 - add new options for copy-before-write filter
 - new trace points for NBD
 - prefer unsigned type for some 'in_flight' fields
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Merge tag 'pull-block-2022-06-14-v2' of https://gitlab.com/vsementsov/qemu into staging

Block jobs & NBD patches

v2: - add arguments to QEMUMachine constructor in test, to make it work
      on arm in gitlab pipeline
    - use bdrv_inc_in_flight() / bdrv_dec_in_flight() instead of direct
      manipulation with bs->in_flight

- add new options for copy-before-write filter
- new trace points for NBD
- prefer unsigned type for some 'in_flight' fields

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# gpg: Signature made Wed 29 Jun 2022 01:30:41 PM +0530
# gpg:                using RSA key 8B9C26CDB2FD147C880E86A1561F24C1F19F79FB
# gpg: Good signature from "Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>" [unknown]
# gpg:                 aka "Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8B9C 26CD B2FD 147C 880E  86A1 561F 24C1 F19F 79FB

* tag 'pull-block-2022-06-14-v2' of https://gitlab.com/vsementsov/qemu:
  block: use 'unsigned' for in_flight field on driver state
  nbd: trace long NBD operations
  iotests: copy-before-write: add cases for cbw-timeout option
  block/copy-before-write: implement cbw-timeout option
  block/block-copy: block_copy(): add timeout_ns parameter
  util: add qemu-co-timeout
  iotests: add copy-before-write: on-cbw-error tests
  block/copy-before-write: add on-cbw-error open parameter
  block/copy-before-write: refactor option parsing

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-29 21:35:27 +05:30
commit f96d4e0f60
15 changed files with 483 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/block/block-copy.h
View file

@ -40,7 +40,9 @@ int64_t block_copy_reset_unallocated(BlockCopyState *s,
int64_t offset, int64_t *count);
int coroutine_fn block_copy(BlockCopyState *s, int64_t offset, int64_t bytes,
bool ignore_ratelimit);
bool ignore_ratelimit, uint64_t timeout_ns,
BlockCopyAsyncCallbackFunc cb,
void *cb_opaque);
/*
* Run block-copy in a coroutine, create corresponding BlockCopyCallState

13
include/qemu/coroutine.h
View file

@ -331,6 +331,19 @@ static inline void coroutine_fn qemu_co_sleep_ns(QEMUClockType type, int64_t ns)
qemu_co_sleep_ns_wakeable(&w, type, ns);
}
typedef void CleanupFunc(void *opaque);
/**
* Run entry in a coroutine and start timer. Wait for entry to finish or for
* timer to elapse, what happen first. If entry finished, return 0, if timer
* elapsed earlier, return -ETIMEDOUT.
*
* Be careful, entry execution is not canceled, user should handle it somehow.
* If @clean is provided, it's called after coroutine finish if timeout
* happened.
*/
int coroutine_fn qemu_co_timeout(CoroutineEntry *entry, void *opaque,
uint64_t timeout_ns, CleanupFunc clean);
/**
* Wake a coroutine if it is sleeping in qemu_co_sleep_ns. The timer will be
* deleted. @sleep_state must be the variable whose address was given to