gfapi: 'glfs_h_creat_open' - new API to create handle and open fd

Right now we have two separate APIs, one
- 'glfs_h_creat_handle' to create handle & another
- 'glfs_h_open' to create a glfd to return to application

Having two separate routines can result in access errors
while trying to create and write into a read-only file.

Since a fd is opened even during file/directory creation,
introducing a new API to make these two operations atomic i.e,
which can create both handle & fd and pass them to application

This is backport of below mainline patch -
- https://review.gluster.org/#/c/glusterfs/+/23448/
- bz#1753569

release-6:
- https://review.gluster.org/#/c/glusterfs/+/23491/

Change-Id: Ibf513fcfcdad175f4d7eb6fa7a61b8feec6d33b5
fixes: bz#1756002
Signed-off-by: Soumya Koduri <skoduri@redhat.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/api/src/gfapi.map b/api/src/gfapi.map
index ca20d6407e7..228ac47c084 100644
--- a/api/src/gfapi.map
+++ b/api/src/gfapi.map
@@ -272,7 +272,12 @@ GFAPI_PRIVATE_6.1 {
 		glfs_setfspid;
 } GFAPI_6.0;
 
+GFAPI_6.6 {
+	global:
+		glfs_h_creat_open;
+} GFAPI_PRIVATE_6.1;
+
 GFAPI_7.0 {
 	global:
 		glfs_set_statedump_path;
-} GFAPI_PRIVATE_6.1;
+} GFAPI_6.6;