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[Qemu-block] [PATCH 0/6] block: byte-based AIO read/write
From: |
Eric Blake |
Subject: |
[Qemu-block] [PATCH 0/6] block: byte-based AIO read/write |
Date: |
Thu, 15 Feb 2018 13:28:23 -0600 |
While we would prefer that block drivers use coroutines instead
of aio callbacks, it is a fairly easy exercise to prove that
all existing drivers with aio callbacks are merely scaling
from bytes into sectors and back to bytes. So, even though I
am not set up to completely run (or even compile-test) this
full series, it seems pretty straightforward to change the
signature to quit playing games with pointless scaling.
Note that except for the null-aio driver, I intentionally did
NOT try and change the request_alignment from the block layer's
default of 512 (it defaults to 1 only for drivers that use
coroutines).
(And along the way, I got my address@hidden working;
thanks to the help I got on IRC)
Eric Blake (6):
block: Support byte-based aio callbacks
file-win32: Switch to byte-based callbacks
null: Switch to byte-based read/write
rbd: Switch to byte-based callbacks
vxhs: Switch to byte-based callbacks
block: Drop last of the sector-based aio callbacks
include/block/block_int.h | 8 +++---
include/block/raw-aio.h | 2 +-
block/io.c | 26 ++++++++++++-------
block/file-win32.c | 36 +++++++++++++-------------
block/null.c | 66 ++++++++++++++++++++++++++---------------------
block/rbd.c | 36 ++++++++++++--------------
block/vxhs.c | 36 +++++++++++---------------
block/win32-aio.c | 5 ++--
8 files changed, 109 insertions(+), 106 deletions(-)
--
2.14.3
- [Qemu-block] [PATCH 0/6] block: byte-based AIO read/write,
Eric Blake <=
- [Qemu-block] [PATCH 6/6] block: Drop last of the sector-based aio callbacks, Eric Blake, 2018/02/15
- [Qemu-block] [PATCH 3/6] null: Switch to byte-based read/write, Eric Blake, 2018/02/15
- [Qemu-block] [PATCH 5/6] vxhs: Switch to byte-based callbacks, Eric Blake, 2018/02/15
- [Qemu-block] [PATCH 1/6] block: Support byte-based aio callbacks, Eric Blake, 2018/02/15
- [Qemu-block] [PATCH 4/6] rbd: Switch to byte-based callbacks, Eric Blake, 2018/02/15
- [Qemu-block] [PATCH 2/6] file-win32: Switch to byte-based callbacks, Eric Blake, 2018/02/15