This adds the io_batch structure, and a helper for defining one on the
stack. It's meant to be used for collecting requests for completion,
with a completion handler defined to be called at the end.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
include/linux/blkdev.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2a8689e949b4..b39b19dbe7b6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1298,4 +1298,14 @@ int fsync_bdev(struct block_device *bdev);
int freeze_bdev(struct block_device *bdev);
int thaw_bdev(struct block_device *bdev);
+struct io_batch {
+ struct request *req_list;
+ void (*complete)(struct io_batch *);
+};
+
+#define DEFINE_IO_BATCH(name) \
+ struct io_batch name = { \
+ .req_list = NULL \
+ }
+
#endif /* _LINUX_BLKDEV_H */
--
2.33.0
