ignore_bds_parents is now ignored during drain_begin and drain_end, so
we can just remove it there. It is still a valid optimisation for
drain_all in bdrv_drained_poll(), so leave it around there.
Signed-off-by: Kevin Wolf
---
include/block/block-io.h | 3 +--
block.c | 2 +-
block/io.c | 58 +++-
3 files changed, 24 insertions(+), 39 deletions(-)
diff --git a/include/block/block-io.h b/include/block/block-io.h
index 9c36a16a1f..8f5e75756a 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -329,8 +329,7 @@ void bdrv_drained_begin(BlockDriverState *bs);
* Quiesces a BDS like bdrv_drained_begin(), but does not wait for already
* running requests to complete.
*/
-void bdrv_do_drained_begin_quiesce(BlockDriverState *bs,
- BdrvChild *parent, bool ignore_bds_parents);
+void bdrv_do_drained_begin_quiesce(BlockDriverState *bs, BdrvChild *parent);
/**
* bdrv_drained_end:
diff --git a/block.c b/block.c
index 6b41a252e4..d18512944d 100644
--- a/block.c
+++ b/block.c
@@ -1228,7 +1228,7 @@ static char *bdrv_child_get_parent_desc(BdrvChild *c)
static void bdrv_child_cb_drained_begin(BdrvChild *child)
{
BlockDriverState *bs = child->opaque;
-bdrv_do_drained_begin_quiesce(bs, NULL, false);
+bdrv_do_drained_begin_quiesce(bs, NULL);
}
static bool bdrv_child_cb_drained_poll(BdrvChild *child)
diff --git a/block/io.c b/block/io.c
index 87d6f22ec4..2e9503df6a 100644
--- a/block/io.c
+++ b/block/io.c
@@ -45,13 +45,12 @@ static void bdrv_parent_cb_resize(BlockDriverState *bs);
static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs,
int64_t offset, int64_t bytes, BdrvRequestFlags flags);
-static void bdrv_parent_drained_begin(BlockDriverState *bs, BdrvChild *ignore,
- bool ignore_bds_parents)
+static void bdrv_parent_drained_begin(BlockDriverState *bs, BdrvChild *ignore)
{
BdrvChild *c, *next;
QLIST_FOREACH_SAFE(c, &bs->parents, next_parent, next) {
-if (c == ignore || (ignore_bds_parents && c->klass->parent_is_bds)) {
+if (c == ignore) {
continue;
}
bdrv_parent_drained_begin_single(c, false);
@@ -70,13 +69,12 @@ void bdrv_parent_drained_end_single(BdrvChild *c)
}
}
-static void bdrv_parent_drained_end(BlockDriverState *bs, BdrvChild *ignore,
-bool ignore_bds_parents)
+static void bdrv_parent_drained_end(BlockDriverState *bs, BdrvChild *ignore)
{
BdrvChild *c;
QLIST_FOREACH(c, &bs->parents, next_parent) {
-if (c == ignore || (ignore_bds_parents && c->klass->parent_is_bds)) {
+if (c == ignore) {
continue;
}
bdrv_parent_drained_end_single(c);
@@ -242,7 +240,6 @@ typedef struct {
bool begin;
bool poll;
BdrvChild *parent;
-bool ignore_bds_parents;
} BdrvCoDrainData;
/* Returns true if BDRV_POLL_WHILE() should go into a blocking aio_poll() */
@@ -269,9 +266,8 @@ static bool bdrv_drain_poll_top_level(BlockDriverState *bs,
}
static void bdrv_do_drained_begin(BlockDriverState *bs, BdrvChild *parent,
- bool ignore_bds_parents, bool poll);
-static void bdrv_do_drained_end(BlockDriverState *bs, BdrvChild *parent,
-bool ignore_bds_parents);
+ bool poll);
+static void bdrv_do_drained_end(BlockDriverState *bs, BdrvChild *parent);
static void bdrv_co_drain_bh_cb(void *opaque)
{
@@ -284,11 +280,10 @@ static void bdrv_co_drain_bh_cb(void *opaque)
aio_context_acquire(ctx);
bdrv_dec_in_flight(bs);
if (data->begin) {
-bdrv_do_drained_begin(bs, data->parent, data->ignore_bds_parents,
- data->poll);
+bdrv_do_drained_begin(bs, data->parent, data->poll);
} else {
assert(!data->poll);
-bdrv_do_drained_end(bs, data->parent, data->ignore_bds_parents);
+bdrv_do_drained_end(bs, data->parent);
}
aio_context_release(ctx);
} else {
@@ -303,7 +298,6 @@ static void bdrv_co_drain_bh_cb(void *opaque)
static void coroutine_fn bdrv_co_yield_to_drain(BlockDriverState *bs,
bool begin,
BdrvChild *parent,
-bool ignore_bds_parents,
bool poll)
{
BdrvCoDrainData data;
@@ -321,7 +315,6 @@ static void coroutine_fn
bdrv_co_yield_to_drain(BlockDriverState *bs,
.done = false,
.begin = begin,
.parent = parent,
-.ignore_bds_parents = ignore_bds_parents,
.poll = poll,
};
@@ -353,8 +346,7 @@ static void coroutine_fn
bdrv_co_yield_to_drain(BlockDriverState *bs,
}
}
-void bdrv
