[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 05/18] block: remove enable_write_cache
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v2 05/18] block: remove enable_write_cache |
Date: |
Thu, 26 Jan 2012 18:22:36 +0100 |
This duplicates a bit in open_flags, we do not need it.
Signed-off-by: Paolo Bonzini <address@hidden>
---
block.c | 3 +--
block_int.h | 3 ---
2 files changed, 1 insertions(+), 5 deletions(-)
diff --git a/block.c b/block.c
index 5055975..afc327e 100644
--- a/block.c
+++ b/block.c
@@ -607,7 +607,6 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
bs->drv = drv;
bs->opaque = g_malloc0(drv->instance_size);
- bs->enable_write_cache = !!(flags & BDRV_O_CACHE_WB);
bs->keep_read_only = bs->read_only = !(bs->open_flags & BDRV_O_RDWR);
/* Open the image, either directly or using a protocol */
@@ -2040,7 +2039,7 @@ int bdrv_is_sg(BlockDriverState *bs)
int bdrv_enable_write_cache(BlockDriverState *bs)
{
- return bs->enable_write_cache;
+ return !!(bs->open_flags & BDRV_O_CACHE_WB);
}
int bdrv_is_encrypted(BlockDriverState *bs)
diff --git a/block_int.h b/block_int.h
index 7be2988..0bbebe4 100644
--- a/block_int.h
+++ b/block_int.h
@@ -277,9 +277,6 @@ struct BlockDriverState {
/* the memory alignment required for the buffers handled by this driver */
int buffer_alignment;
- /* do we need to tell the quest if we have a volatile write cache? */
- int enable_write_cache;
-
/* NOTE: the following infos are only hints for real hardware
drivers. They are not used by the block driver */
int cyls, heads, secs, translation;
--
1.7.7.6
- [Qemu-devel] [PATCH v2 00/18] Support mismatched host and guest logical block sizes, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 01/18] block: do not rely on open_flags for bdrv_is_snapshot, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 03/18] block: pass protocol flags up to the format, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 02/18] block: store actual flags in bs->open_flags, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 04/18] block: non-raw protocols never cache, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 05/18] block: remove enable_write_cache,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v2 06/18] block: move flag bits together, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 07/18] raw: remove the aligned_buf, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 09/18] block: add host_block_size, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 11/18] iscsi: save host block size, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 08/18] block: rename buffer_alignment to guest_block_size, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 10/18] raw: probe host_block_size, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 12/18] block: allow waiting only for overlapping writes, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 14/18] block: protect against "torn reads" for guest_block_size > host_block_size, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 17/18] block: default min_io_size to host block size when doing rmw, Paolo Bonzini, 2012/01/26
- [Qemu-devel] [PATCH v2 16/18] block: default physical block size to host block size, Paolo Bonzini, 2012/01/26