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block: make round_to_clusters public 

This is needed in the following patch.

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-01-21 17:09:42 +01:00 committed by Kevin Wolf
parent 8f0720ecbc
commit 343bded4ec
2 changed files with 12 additions and 8 deletions
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16
block.c
View File

@ -1673,10 +1673,10 @@ static void tracked_request_begin(BdrvTrackedRequest *req,
/**
* Round a region to cluster boundaries
*/
static void round_to_clusters(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
int64_t *cluster_sector_num,
int *cluster_nb_sectors)
void bdrv_round_to_clusters(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
int64_t *cluster_sector_num,
int *cluster_nb_sectors)
{
BlockDriverInfo bdi;
@ -1718,8 +1718,8 @@ static void coroutine_fn wait_for_overlapping_requests(BlockDriverState *bs,
* CoR read and write operations are atomic and guest writes cannot
* interleave between them.
*/
round_to_clusters(bs, sector_num, nb_sectors,
&cluster_sector_num, &cluster_nb_sectors);
bdrv_round_to_clusters(bs, sector_num, nb_sectors,
&cluster_sector_num, &cluster_nb_sectors);
do {
retry = false;
@ -2185,8 +2185,8 @@ static int coroutine_fn bdrv_co_do_copy_on_readv(BlockDriverState *bs,
/* Cover entire cluster so no additional backing file I/O is required when
* allocating cluster in the image file.
*/
round_to_clusters(bs, sector_num, nb_sectors,
&cluster_sector_num, &cluster_nb_sectors);
bdrv_round_to_clusters(bs, sector_num, nb_sectors,
&cluster_sector_num, &cluster_nb_sectors);
trace_bdrv_co_do_copy_on_readv(bs, sector_num, nb_sectors,
cluster_sector_num, cluster_nb_sectors);

4
include/block/block.h
View File

@ -309,6 +309,10 @@ int bdrv_get_flags(BlockDriverState *bs);
int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors);
int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
void bdrv_round_to_clusters(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
int64_t *cluster_sector_num,
int *cluster_nb_sectors);
const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
void bdrv_get_backing_filename(BlockDriverState *bs,