qemu-e2k/hw/nvram
Eric Blake 8341f00dc2 block: Allow BDRV_REQ_FUA through blk_pwrite()
We have several block drivers that understand BDRV_REQ_FUA,
and emulate it in the block layer for the rest by a full flush.
But without a way to actually request BDRV_REQ_FUA during a
pass-through blk_pwrite(), FUA-aware block drivers like NBD are
forced to repeat the emulation logic of a full flush regardless
of whether the backend they are writing to could do it more
efficiently.

This patch just wires up a flags argument; followup patches
will actually make use of it in the NBD driver and in qemu-io.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12 15:22:08 +02:00
..
ds1225y.c hw: Clean up includes 2016-01-29 15:07:25 +00:00
eeprom93xx.c hw: Clean up includes 2016-01-29 15:07:25 +00:00
fw_cfg.c Sort the fw_cfg file list 2016-04-07 19:57:33 +03:00
mac_nvram.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
Makefile.objs hw: move NVRAM interfaces to hw/nvram/, configure with default-configs/ 2013-04-08 18:13:16 +02:00
spapr_nvram.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00