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-rw-r--r--block/file-posix.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/block/file-posix.c b/block/file-posix.c
index 6def2a4cba..7a289a9481 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -150,6 +150,8 @@ typedef struct BDRVRawState {
uint64_t locked_perm;
uint64_t locked_shared_perm;
+ uint64_t aio_max_batch;
+
int perm_change_fd;
int perm_change_flags;
BDRVReopenState *reopen_state;
@@ -531,6 +533,11 @@ static QemuOptsList raw_runtime_opts = {
.help = "host AIO implementation (threads, native, io_uring)",
},
{
+ .name = "aio-max-batch",
+ .type = QEMU_OPT_NUMBER,
+ .help = "AIO max batch size (0 = auto handled by AIO backend, default: 0)",
+ },
+ {
.name = "locking",
.type = QEMU_OPT_STRING,
.help = "file locking mode (on/off/auto, default: auto)",
@@ -609,6 +616,8 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
s->use_linux_io_uring = (aio == BLOCKDEV_AIO_OPTIONS_IO_URING);
#endif
+ s->aio_max_batch = qemu_opt_get_number(opts, "aio-max-batch", 0);
+
locking = qapi_enum_parse(&OnOffAuto_lookup,
qemu_opt_get(opts, "locking"),
ON_OFF_AUTO_AUTO, &local_err);