[PATCH v7 02/10] block/raw: add persistent reservation in/out driver

[Changqi Lu]

Add persistent reservation in/out operations for raw driver.
The following methods are implemented: bdrv_co_pr_read_keys,
bdrv_co_pr_read_reservation, bdrv_co_pr_register, bdrv_co_pr_reserve,
bdrv_co_pr_release, bdrv_co_pr_clear and bdrv_co_pr_preempt.

Signed-off-by: Changqi Lu <luchangqi.123@bytedance.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 block/raw-format.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/block/raw-format.c b/block/raw-format.c
index ac7e8495f6..3746bc1bd3 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -454,6 +454,55 @@ raw_co_ioctl(BlockDriverState *bs, unsigned long int req, 
void *buf)
     return bdrv_co_ioctl(bs->file->bs, req, buf);
 }
 
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_read_keys(BlockDriverState *bs, uint32_t *generation,
+                    uint32_t num_keys, uint64_t *keys)
+{
+
+    return bdrv_co_pr_read_keys(bs->file->bs, generation, num_keys, keys);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_read_reservation(BlockDriverState *bs, uint32_t *generation,
+                           uint64_t *key, BlockPrType *type)
+{
+    return bdrv_co_pr_read_reservation(bs->file->bs, generation, key, type);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_register(BlockDriverState *bs, uint64_t old_key,
+                   uint64_t new_key, BlockPrType type,
+                   bool ptpl, bool ignore_key)
+{
+    return bdrv_co_pr_register(bs->file->bs, old_key, new_key,
+                               type, ptpl, ignore_key);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_reserve(BlockDriverState *bs, uint64_t key, BlockPrType type)
+{
+    return bdrv_co_pr_reserve(bs->file->bs, key, type);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_release(BlockDriverState *bs, uint64_t key, BlockPrType type)
+{
+    return bdrv_co_pr_release(bs->file->bs, key, type);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_clear(BlockDriverState *bs, uint64_t key)
+{
+    return bdrv_co_pr_clear(bs->file->bs, key);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+raw_co_pr_preempt(BlockDriverState *bs, uint64_t old_key,
+                  uint64_t new_key, BlockPrType type, bool abort)
+{
+    return bdrv_co_pr_preempt(bs->file->bs, old_key, new_key, type, abort);
+}
+
 static int GRAPH_RDLOCK raw_has_zero_init(BlockDriverState *bs)
 {
     return bdrv_has_zero_init(bs->file->bs);
@@ -672,6 +721,13 @@ BlockDriver bdrv_raw = {
     .strong_runtime_opts  = raw_strong_runtime_opts,
     .mutable_opts         = mutable_opts,
     .bdrv_cancel_in_flight = raw_cancel_in_flight,
+    .bdrv_co_pr_read_keys    = raw_co_pr_read_keys,
+    .bdrv_co_pr_read_reservation = raw_co_pr_read_reservation,
+    .bdrv_co_pr_register     = raw_co_pr_register,
+    .bdrv_co_pr_reserve      = raw_co_pr_reserve,
+    .bdrv_co_pr_release      = raw_co_pr_release,
+    .bdrv_co_pr_clear        = raw_co_pr_clear,
+    .bdrv_co_pr_preempt      = raw_co_pr_preempt,
 };
 
 static void bdrv_raw_init(void)
-- 
2.20.1