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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Mon 18 Jul 2016 23:53:15 BST
# gpg:                using RSA key 0x7DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/ide-pull-request:
  block: ignore flush requests when storage is clean
  tests: in IDE and AHCI tests perform DMA write before flushing
  ide: set retry_unit for PIO and FLUSH requests
  ide: refactor retry_unit set and clear into separate function

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-07-19 11:47:06 +01:00
commit ad31cd4c69
12 changed files with 125 additions and 121 deletions
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5
include/block/block_int.h
View file

@ -439,6 +439,11 @@ struct BlockDriverState {
int copy_on_read; /* if nonzero, copy read backing sectors into image.
note this is a reference count */
CoQueue flush_queue; /* Serializing flush queue */
unsigned int write_gen; /* Current data generation */
unsigned int flush_started_gen; /* Generation for which flush has started */
unsigned int flushed_gen; /* Flushed write generation */
BlockDriver *drv; /* NULL means no media */
void *opaque;