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[Qemu-devel] [PULL 22/73] block: Lift more functions into BlockBackend
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 22/73] block: Lift more functions into BlockBackend |
Date: |
Wed, 10 Dec 2014 11:33:48 +0100 |
From: Max Reitz <address@hidden>
There are already some blk_aio_* functions, so we might as well have
blk_co_* functions (as far as we need them). This patch adds
blk_co_flush(), blk_co_discard(), and also blk_invalidate_cache() (which
is not a blk_co_* function but is needed nonetheless).
Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/block-backend.c | 15 +++++++++++++++
include/sysemu/block-backend.h | 3 +++
2 files changed, 18 insertions(+)
diff --git a/block/block-backend.c b/block/block-backend.c
index d0692b1..89f69b7 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -497,6 +497,16 @@ BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long
int req, void *buf,
return bdrv_aio_ioctl(blk->bs, req, buf, cb, opaque);
}
+int blk_co_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors)
+{
+ return bdrv_co_discard(blk->bs, sector_num, nb_sectors);
+}
+
+int blk_co_flush(BlockBackend *blk)
+{
+ return bdrv_co_flush(blk->bs);
+}
+
int blk_flush(BlockBackend *blk)
{
return bdrv_flush(blk->bs);
@@ -549,6 +559,11 @@ void blk_set_enable_write_cache(BlockBackend *blk, bool
wce)
bdrv_set_enable_write_cache(blk->bs, wce);
}
+void blk_invalidate_cache(BlockBackend *blk, Error **errp)
+{
+ bdrv_invalidate_cache(blk->bs, errp);
+}
+
int blk_is_inserted(BlockBackend *blk)
{
return bdrv_is_inserted(blk->bs);
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 52d13c1..0c46b82 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -108,6 +108,8 @@ int blk_aio_multiwrite(BlockBackend *blk, BlockRequest
*reqs, int num_reqs);
int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf,
BlockCompletionFunc *cb, void *opaque);
+int blk_co_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors);
+int blk_co_flush(BlockBackend *blk);
int blk_flush(BlockBackend *blk);
int blk_flush_all(void);
void blk_drain_all(void);
@@ -120,6 +122,7 @@ int blk_is_read_only(BlockBackend *blk);
int blk_is_sg(BlockBackend *blk);
int blk_enable_write_cache(BlockBackend *blk);
void blk_set_enable_write_cache(BlockBackend *blk, bool wce);
+void blk_invalidate_cache(BlockBackend *blk, Error **errp);
int blk_is_inserted(BlockBackend *blk);
void blk_lock_medium(BlockBackend *blk, bool locked);
void blk_eject(BlockBackend *blk, bool eject_flag);
--
1.8.3.1
- [Qemu-devel] [PULL 15/73] block/hmp: Allow info = NULL in print_block_info(), (continued)
- [Qemu-devel] [PULL 15/73] block/hmp: Allow info = NULL in print_block_info(), Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 13/73] block/qapi: Add cache information to query-block, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 10/73] blockdev: check for BLOCK_OP_TYPE_INTERNAL_SNAPSHOT_DELETE, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 14/73] block/hmp: Factor out print_block_info(), Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 16/73] block/hmp: Allow node-name in 'info block', Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 17/73] monitor: Fix HMP tab completion, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 21/73] ahci: replace SATA FIS type magic numbers with constants, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 23/73] block: Add AioContextNotifier functions to BB, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 19/73] iotests: Plain blkdebug filename generation, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 20/73] ahci: avoid #ifdef DEBUG_AHCI bitrot, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 22/73] block: Lift more functions into BlockBackend,
Kevin Wolf <=
- [Qemu-devel] [PULL 24/73] block: Add blk_add_close_notifier() for BB, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 25/73] nbd: Change external interface to BlockBackend, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 26/73] nbd: Use BlockBackend internally, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 27/73] qemu-nbd: Use BlockBackend where reasonable, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 28/73] tests: Use "command -v" instead of which(1) in shell scripts, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 30/73] qemu-iotests: Use qemu-io -f $IMGFMT, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 31/73] qemu-iotests: Add qemu-io format option in Python tests, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 29/73] qemu-io: Allow explicitly specifying format, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 32/73] qtests: Specify image format explicitly, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 34/73] block: Read only one sector for format probing, Kevin Wolf, 2014/12/10