diff options
author | Kevin Wolf <kwolf@redhat.com> | 2011-07-15 16:36:40 +0200 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2011-08-02 15:53:41 +0200 |
commit | 384acbf46b70edf0d2c1648aa1a92a90bcf7057d (patch) | |
tree | 38459f728adf03df6b83a6273484f61d05e0dd01 /block.c | |
parent | 52b8eb60132b27ad53476490e9d7579003390cfa (diff) |
async: Remove AsyncContext
The purpose of AsyncContexts was to protect qcow and qcow2 against reentrancy
during an emulated bdrv_read/write (which includes a qemu_aio_wait() call and
can run AIO callbacks of different requests if it weren't for AsyncContexts).
Now both qcow and qcow2 are protected by CoMutexes and AsyncContexts can be
removed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block.c')
-rw-r--r-- | block.c | 6 |
1 files changed, 0 insertions, 6 deletions
@@ -2777,8 +2777,6 @@ static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num, struct iovec iov; QEMUIOVector qiov; - async_context_push(); - async_ret = NOT_DONE; iov.iov_base = (void *)buf; iov.iov_len = nb_sectors * BDRV_SECTOR_SIZE; @@ -2796,7 +2794,6 @@ static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num, fail: - async_context_pop(); return async_ret; } @@ -2808,8 +2805,6 @@ static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num, struct iovec iov; QEMUIOVector qiov; - async_context_push(); - async_ret = NOT_DONE; iov.iov_base = (void *)buf; iov.iov_len = nb_sectors * BDRV_SECTOR_SIZE; @@ -2825,7 +2820,6 @@ static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num, } fail: - async_context_pop(); return async_ret; } |