[for-7.2,2/5] block/mirror: Drop mirror_wait_for_any_operation()

Commit Message

Hanna Czenczek Nov. 9, 2022, 4:54 p.m. UTC

mirror_wait_for_free_in_flight_slot() is the only remaining user of
mirror_wait_for_any_operation(), so inline the latter into the former.

Signed-off-by: Hanna Reitz <[e-mail]>
---
 block/mirror.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

Comments

Kevin Wolf Nov. 10, 2022, 12:05 p.m. UTC | #1

Am 09.11.2022 um 17:54 hat Hanna Reitz geschrieben:
> mirror_wait_for_free_in_flight_slot() is the only remaining user of
> mirror_wait_for_any_operation(), so inline the latter into the former.
> 
> Signed-off-by: Hanna Reitz <[e-mail]>

Reviewed-by: Kevin Wolf <[e-mail]>

Patch

diff --git a/block/mirror.c b/block/mirror.c
index e5467b0053..5b6f42392c 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -305,19 +305,21 @@  static int mirror_cow_align(MirrorBlockJob *s, int64_t *offset,
 }
 
 static inline void coroutine_fn
-mirror_wait_for_any_operation(MirrorBlockJob *s, bool active)
+mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s)
 {
     MirrorOp *op;
 
     QTAILQ_FOREACH(op, &s->ops_in_flight, next) {
-        /* Do not wait on pseudo ops, because it may in turn wait on
+        /*
+         * Do not wait on pseudo ops, because it may in turn wait on
          * some other operation to start, which may in fact be the
          * caller of this function.  Since there is only one pseudo op
          * at any given time, we will always find some real operation
-         * to wait on. */
-        if (!op->is_pseudo_op && op->is_in_flight &&
-            op->is_active_write == active)
-        {
+         * to wait on.
+         * Also, do not wait on active operations, because they do not
+         * use up in-flight slots.
+         */
+        if (!op->is_pseudo_op && op->is_in_flight && !op->is_active_write) {
             qemu_co_queue_wait(&op->waiting_requests, NULL);
             return;
         }
@@ -325,13 +327,6 @@  mirror_wait_for_any_operation(MirrorBlockJob *s, bool active)
     abort();
 }
 
-static inline void coroutine_fn
-mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s)
-{
-    /* Only non-active operations use up in-flight slots */
-    mirror_wait_for_any_operation(s, false);
-}
-
 /* Perform a mirror copy operation.
  *
  * *op->bytes_handled is set to the number of bytes copied after and