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block: Rename bdrv_co_flush to bdrv_co_flush_to_disk 

There are two different types of flush that you can do: Flushing one level up
to the OS (i.e. writing data to the host page cache) or flushing it all the way
down to the disk. The existing functions flush to the disk, reflect this in the
function name.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2011-11-10 17:25:44 +01:00
parent 980bda8ba2
commit c68b89acd6
11 changed files with 59 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
block.c
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@ -2793,8 +2793,8 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
return 0;
} else if (!bs->drv) {
return 0;
} else if (bs->drv->bdrv_co_flush) {
return bs->drv->bdrv_co_flush(bs);
} else if (bs->drv->bdrv_co_flush_to_disk) {
return bs->drv->bdrv_co_flush_to_disk(bs);
} else if (bs->drv->bdrv_aio_flush) {
BlockDriverAIOCB *acb;
CoroutineIOCompletion co = {

22
block/cow.c
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@ -326,16 +326,18 @@ static QEMUOptionParameter cow_create_options[] = {
};
static BlockDriver bdrv_cow = {
.format_name = "cow",
.instance_size = sizeof(BDRVCowState),
.bdrv_probe = cow_probe,
.bdrv_open = cow_open,
.bdrv_read = cow_co_read,
.bdrv_write = cow_co_write,
.bdrv_close = cow_close,
.bdrv_create = cow_create,
.bdrv_co_flush = cow_co_flush,
.bdrv_is_allocated = cow_is_allocated,
.format_name = "cow",
.instance_size = sizeof(BDRVCowState),
.bdrv_probe = cow_probe,
.bdrv_open = cow_open,
.bdrv_close = cow_close,
.bdrv_create = cow_create,
.bdrv_read = cow_co_read,
.bdrv_write = cow_co_write,
.bdrv_co_flush_to_disk = cow_co_flush,
.bdrv_is_allocated = cow_is_allocated,
.create_options = cow_create_options,
};

18
block/qcow.c
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@ -828,14 +828,16 @@ static BlockDriver bdrv_qcow = {
.bdrv_open = qcow_open,
.bdrv_close = qcow_close,
.bdrv_create = qcow_create,
.bdrv_is_allocated = qcow_is_allocated,
.bdrv_set_key = qcow_set_key,
.bdrv_make_empty = qcow_make_empty,
.bdrv_co_readv = qcow_co_readv,
.bdrv_co_writev = qcow_co_writev,
.bdrv_co_flush = qcow_co_flush,
.bdrv_write_compressed = qcow_write_compressed,
.bdrv_get_info = qcow_get_info,
.bdrv_co_readv = qcow_co_readv,
.bdrv_co_writev = qcow_co_writev,
.bdrv_co_flush_to_disk = qcow_co_flush,
.bdrv_is_allocated = qcow_is_allocated,
.bdrv_set_key = qcow_set_key,
.bdrv_make_empty = qcow_make_empty,
.bdrv_write_compressed = qcow_write_compressed,
.bdrv_get_info = qcow_get_info,
.create_options = qcow_create_options,
};

6
block/qcow2.c
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@ -1243,9 +1243,9 @@ static BlockDriver bdrv_qcow2 = {
.bdrv_set_key = qcow2_set_key,
.bdrv_make_empty = qcow2_make_empty,
.bdrv_co_readv = qcow2_co_readv,
.bdrv_co_writev = qcow2_co_writev,
.bdrv_co_flush = qcow2_co_flush,
.bdrv_co_readv = qcow2_co_readv,
.bdrv_co_writev = qcow2_co_writev,
.bdrv_co_flush_to_disk = qcow2_co_flush,
.bdrv_co_discard = qcow2_co_discard,
.bdrv_truncate = qcow2_truncate,

15
block/raw-win32.c
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@ -281,9 +281,11 @@ static BlockDriver bdrv_file = {
.bdrv_file_open = raw_open,
.bdrv_close = raw_close,
.bdrv_create = raw_create,
.bdrv_co_flush = raw_flush,
.bdrv_read = raw_read,
.bdrv_write = raw_write,
.bdrv_read = raw_read,
.bdrv_write = raw_write,
.bdrv_co_flush_to_disk = raw_flush,
.bdrv_truncate = raw_truncate,
.bdrv_getlength = raw_getlength,
.bdrv_get_allocated_file_size
@ -409,11 +411,12 @@ static BlockDriver bdrv_host_device = {
.bdrv_probe_device = hdev_probe_device,
.bdrv_file_open = hdev_open,
.bdrv_close = raw_close,
.bdrv_co_flush = raw_flush,
.bdrv_has_zero_init = hdev_has_zero_init,
.bdrv_read = raw_read,
.bdrv_write = raw_write,
.bdrv_read = raw_read,
.bdrv_write = raw_write,
.bdrv_co_flush_to_disk = raw_flush,
.bdrv_getlength = raw_getlength,
.bdrv_get_allocated_file_size
= raw_get_allocated_file_size,

8
block/raw.c
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@ -111,10 +111,10 @@ static BlockDriver bdrv_raw = {
.bdrv_open = raw_open,
.bdrv_close = raw_close,
.bdrv_co_readv = raw_co_readv,
.bdrv_co_writev = raw_co_writev,
.bdrv_co_flush = raw_co_flush,
.bdrv_co_discard = raw_co_discard,
.bdrv_co_readv = raw_co_readv,
.bdrv_co_writev = raw_co_writev,
.bdrv_co_flush_to_disk = raw_co_flush,
.bdrv_co_discard = raw_co_discard,
.bdrv_probe = raw_probe,
.bdrv_getlength = raw_getlength,

10
block/rbd.c
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@ -851,18 +851,18 @@ static BlockDriver bdrv_rbd = {
.bdrv_file_open = qemu_rbd_open,
.bdrv_close = qemu_rbd_close,
.bdrv_create = qemu_rbd_create,
.bdrv_co_flush = qemu_rbd_co_flush,
.bdrv_get_info = qemu_rbd_getinfo,
.create_options = qemu_rbd_create_options,
.bdrv_getlength = qemu_rbd_getlength,
.bdrv_truncate = qemu_rbd_truncate,
.protocol_name = "rbd",
.bdrv_aio_readv = qemu_rbd_aio_readv,
.bdrv_aio_writev = qemu_rbd_aio_writev,
.bdrv_aio_readv = qemu_rbd_aio_readv,
.bdrv_aio_writev = qemu_rbd_aio_writev,
.bdrv_co_flush_to_disk = qemu_rbd_co_flush,
.bdrv_snapshot_create = qemu_rbd_snap_create,
.bdrv_snapshot_list = qemu_rbd_snap_list,
.bdrv_snapshot_create = qemu_rbd_snap_create,
.bdrv_snapshot_list = qemu_rbd_snap_list,
};
static void bdrv_rbd_init(void)

2
block/vdi.c
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@ -980,7 +980,7 @@ static BlockDriver bdrv_vdi = {
.bdrv_open = vdi_open,
.bdrv_close = vdi_close,
.bdrv_create = vdi_create,
.bdrv_co_flush = vdi_co_flush,
.bdrv_co_flush_to_disk = vdi_co_flush,
.bdrv_is_allocated = vdi_is_allocated,
.bdrv_make_empty = vdi_make_empty,

4
block/vmdk.c
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@ -1581,8 +1581,8 @@ static BlockDriver bdrv_vmdk = {
.bdrv_write = vmdk_co_write,
.bdrv_close = vmdk_close,
.bdrv_create = vmdk_create,
.bdrv_co_flush = vmdk_co_flush,
.bdrv_is_allocated = vmdk_is_allocated,
.bdrv_co_flush_to_disk = vmdk_co_flush,
.bdrv_is_allocated = vmdk_is_allocated,
.bdrv_get_allocated_file_size = vmdk_get_allocated_file_size,
.create_options = vmdk_create_options,

8
block/vpc.c
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@ -665,14 +665,16 @@ static QEMUOptionParameter vpc_create_options[] = {
static BlockDriver bdrv_vpc = {
.format_name = "vpc",
.instance_size = sizeof(BDRVVPCState),
.bdrv_probe = vpc_probe,
.bdrv_open = vpc_open,
.bdrv_read = vpc_co_read,
.bdrv_write = vpc_co_write,
.bdrv_co_flush = vpc_co_flush,
.bdrv_close = vpc_close,
.bdrv_create = vpc_create,
.bdrv_read = vpc_co_read,
.bdrv_write = vpc_co_write,
.bdrv_co_flush_to_disk = vpc_co_flush,
.create_options = vpc_create_options,
};

7
block_int.h
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@ -84,10 +84,15 @@ struct BlockDriver {
int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
int coroutine_fn (*bdrv_co_writev)(BlockDriverState *bs,
int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
int coroutine_fn (*bdrv_co_flush)(BlockDriverState *bs);
int coroutine_fn (*bdrv_co_discard)(BlockDriverState *bs,
int64_t sector_num, int nb_sectors);
/*
* Flushes all data that was already written to the OS all the way down to
* the disk (for example raw-posix calls fsync()).
*/
int coroutine_fn (*bdrv_co_flush_to_disk)(BlockDriverState *bs);
int (*bdrv_aio_multiwrite)(BlockDriverState *bs, BlockRequest *reqs,
int num_reqs);
int (*bdrv_merge_requests)(BlockDriverState *bs, BlockRequest* a,