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authorKevin Wolf <kwolf@redhat.com>2011-07-15 16:36:40 +0200
committerKevin Wolf <kwolf@redhat.com>2011-08-02 15:53:41 +0200
commit384acbf46b70edf0d2c1648aa1a92a90bcf7057d (patch)
tree38459f728adf03df6b83a6273484f61d05e0dd01 /block/qed-table.c
parent52b8eb60132b27ad53476490e9d7579003390cfa (diff)
downloadqemu-arm-384acbf46b70edf0d2c1648aa1a92a90bcf7057d.tar.gz
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/qed-table.c')
-rw-r--r--block/qed-table.c14
1 files changed, 0 insertions, 14 deletions
diff --git a/block/qed-table.c b/block/qed-table.c
index d38c673547..d96afa81d7 100644
--- a/block/qed-table.c
+++ b/block/qed-table.c
@@ -179,16 +179,12 @@ int qed_read_l1_table_sync(BDRVQEDState *s)
{
int ret = -EINPROGRESS;
- async_context_push();
-
qed_read_table(s, s->header.l1_table_offset,
s->l1_table, qed_sync_cb, &ret);
while (ret == -EINPROGRESS) {
qemu_aio_wait();
}
- async_context_pop();
-
return ret;
}
@@ -205,15 +201,11 @@ int qed_write_l1_table_sync(BDRVQEDState *s, unsigned int index,
{
int ret = -EINPROGRESS;
- async_context_push();
-
qed_write_l1_table(s, index, n, qed_sync_cb, &ret);
while (ret == -EINPROGRESS) {
qemu_aio_wait();
}
- async_context_pop();
-
return ret;
}
@@ -282,14 +274,11 @@ int qed_read_l2_table_sync(BDRVQEDState *s, QEDRequest *request, uint64_t offset
{
int ret = -EINPROGRESS;
- async_context_push();
-
qed_read_l2_table(s, request, offset, qed_sync_cb, &ret);
while (ret == -EINPROGRESS) {
qemu_aio_wait();
}
- async_context_pop();
return ret;
}
@@ -307,13 +296,10 @@ int qed_write_l2_table_sync(BDRVQEDState *s, QEDRequest *request,
{
int ret = -EINPROGRESS;
- async_context_push();
-
qed_write_l2_table(s, request, index, n, flush, qed_sync_cb, &ret);
while (ret == -EINPROGRESS) {
qemu_aio_wait();
}
- async_context_pop();
return ret;
}