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| author | Kevin Wolf <kwolf@redhat.com> | 2016-11-18 15:32:17 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-06-26 14:51:15 +0200 |
| commit | 0806c3b5dd1aced4c50eda65e9ecc9cfab4ee58e (patch) | |
| tree | 2eb5b8cc2417d5881d0a26865ad510671964a858 /block/qed.h | |
| parent | 89f89709c7c66edd95c2288eae7ec4006256348a (diff) | |
| download | qemu-0806c3b5dd1aced4c50eda65e9ecc9cfab4ee58e.tar.gz | |
qed: Use CoQueue for serialising allocations
Now that we're running in coroutine context, the ad-hoc serialisation
code (which drops a request that has to wait out of coroutine context)
can be replaced by a CoQueue.
This means that when we resume a serialised request, it is running in
coroutine context again and its I/O isn't blocking any more.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/qed.h')
| -rw-r--r-- | block/qed.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/qed.h b/block/qed.h index 8644fed3a7..37558e425d 100644 --- a/block/qed.h +++ b/block/qed.h @@ -163,7 +163,8 @@ typedef struct { uint32_t l2_mask; /* Allocating write request queue */ - QSIMPLEQ_HEAD(, QEDAIOCB) allocating_write_reqs; + QEDAIOCB *allocating_acb; + CoQueue allocating_write_reqs; bool allocating_write_reqs_plugged; /* Periodic flush and clear need check flag */ |