From a9e6fadf3eedfe70749114280fe93886ceb187ef Mon Sep 17 00:00:00 2001
From: Wojciech Malikowski <wojciech.malikowski@intel.com>
Date: Mon, 23 Sep 2019 11:38:59 -0400
Subject: [PATCH] lib/bdev: Added spdk_bdev_io_get_append_location()

spdk_bdev_io_get_append_location() will be
used during zone append command to retrieve
location of data write.

Change-Id: I1f46ae9d2f745aa53264c1a01da3f7cef4f38c72
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469164
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
---
 include/spdk/bdev_zone.h | 7 +++++++
 lib/bdev/bdev_zone.c     | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/include/spdk/bdev_zone.h b/include/spdk/bdev_zone.h
index d80639530..dde3daaf2 100644
--- a/include/spdk/bdev_zone.h
+++ b/include/spdk/bdev_zone.h
@@ -142,4 +142,11 @@ int spdk_bdev_zone_management(struct spdk_bdev_desc *desc, struct spdk_io_channe
 			      uint64_t zone_id, enum spdk_bdev_zone_action action,
 			      spdk_bdev_io_completion_cb cb, void *cb_arg);
 
+/**
+ * Get append location (offset in blocks of the bdev) for this I/O.
+ *
+ * \param bdev_io I/O to get append location from.
+ */
+uint64_t spdk_bdev_io_get_append_location(struct spdk_bdev_io *bdev_io);
+
 #endif /* SPDK_BDEV_ZONE_H */
diff --git a/lib/bdev/bdev_zone.c b/lib/bdev/bdev_zone.c
index 932bd18e7..0505c33af 100644
--- a/lib/bdev/bdev_zone.c
+++ b/lib/bdev/bdev_zone.c
@@ -107,3 +107,9 @@ spdk_bdev_zone_management(struct spdk_bdev_desc *desc, struct spdk_io_channel *c
 	spdk_bdev_io_submit(bdev_io);
 	return 0;
 }
+
+uint64_t
+spdk_bdev_io_get_append_location(struct spdk_bdev_io *bdev_io)
+{
+	return bdev_io->u.bdev.offset_blocks;
+}