haraldwolff/qemu-patch-raspberry4
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block: Use blk_co_pwritev() in blk_write_zeroes()

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2016-03-08 13:47:50 +01:00
parent 5bd5119667
commit fc1453cdfc
1 changed files with 8 additions and 9 deletions
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17
block/block-backend.c
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@ -744,7 +744,8 @@ static void blk_write_entry(void *opaque)
}
static int blk_rw(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
int nb_sectors, CoroutineEntry co_entry)
int nb_sectors, CoroutineEntry co_entry,
BdrvRequestFlags flags)
{
AioContext *aio_context;
QEMUIOVector qiov;
@ -766,6 +767,7 @@ static int blk_rw(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
.blk = blk,
.offset = sector_num << BDRV_SECTOR_BITS,
.qiov = &qiov,
.flags = flags,
.ret = NOT_DONE,
};
@ -783,7 +785,7 @@ static int blk_rw(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
int blk_read(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
int nb_sectors)
{
return blk_rw(blk, sector_num, buf, nb_sectors, blk_read_entry);
return blk_rw(blk, sector_num, buf, nb_sectors, blk_read_entry, 0);
}
int blk_read_unthrottled(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
@ -808,18 +810,15 @@ int blk_read_unthrottled(BlockBackend *blk, int64_t sector_num, uint8_t *buf,
int blk_write(BlockBackend *blk, int64_t sector_num, const uint8_t *buf,
int nb_sectors)
{
return blk_rw(blk, sector_num, (uint8_t*) buf, nb_sectors, blk_write_entry);
return blk_rw(blk, sector_num, (uint8_t*) buf, nb_sectors,
blk_write_entry, 0);
}
int blk_write_zeroes(BlockBackend *blk, int64_t sector_num,
int nb_sectors, BdrvRequestFlags flags)
{
int ret = blk_check_request(blk, sector_num, nb_sectors);
if (ret < 0) {
return ret;
}
return bdrv_write_zeroes(blk_bs(blk), sector_num, nb_sectors, flags);
return blk_rw(blk, sector_num, NULL, nb_sectors, blk_write_entry,
BDRV_REQ_ZERO_WRITE);
}
static void error_callback_bh(void *opaque)