diff options
| author | Emanuele Giuseppe Esposito <eesposit@redhat.com> | 2022-03-03 10:16:09 -0500 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2022-03-04 18:18:25 +0100 |
| commit | 1581a70ddd0cd71a8520027d7136ed1e2f6bd19b (patch) | |
| tree | 1959df08dca1a7e424448e52d4debdc7c5a97b74 /block/io.c | |
| parent | 377cc15bf1994a176162a5f705ff32a38aa55e2c (diff) | |
block/coroutines: I/O and "I/O or GS" API
block coroutines functions run in different aiocontext, and are
not protected by the BQL. Therefore are I/O.
On the other side, generated_co_wrapper functions use BDRV_POLL_WHILE,
meaning the caller can either be the main loop or a specific iothread.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-25-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/io.c')
| -rw-r--r-- | block/io.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/io.c b/block/io.c index 6a0bad10a3..4b1d97c7da 100644 --- a/block/io.c +++ b/block/io.c @@ -2678,6 +2678,7 @@ bdrv_co_common_block_status_above(BlockDriverState *bs, BlockDriverState *p; int64_t eof = 0; int dummy; + IO_CODE(); assert(!include_base || base); /* Can't include NULL base */ @@ -2867,6 +2868,7 @@ bdrv_co_readv_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos) BlockDriver *drv = bs->drv; BlockDriverState *child_bs = bdrv_primary_bs(bs); int ret; + IO_CODE(); ret = bdrv_check_qiov_request(pos, qiov->size, qiov, 0, NULL); if (ret < 0) { @@ -2898,6 +2900,7 @@ bdrv_co_writev_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos) BlockDriver *drv = bs->drv; BlockDriverState *child_bs = bdrv_primary_bs(bs); int ret; + IO_CODE(); ret = bdrv_check_qiov_request(pos, qiov->size, qiov, 0, NULL); if (ret < 0) { |