s3: VFS: Remove fsync_fn() from the VFS and all modules. VFS ABI change.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed May  2 01:06:28 CEST 2018 on sn-devel-144

11 files changed, 3 insertions, 118 deletions

diff --git a/examples/VFS/skel_opaque.c b/examples/VFS/skel_opaque.c
index e6c066d2eb8..41215ccf911 100644
--- a/examples/VFS/skel_opaque.c
+++ b/examples/VFS/skel_opaque.c
@@ -311,12 +311,6 @@ static int skel_rename(vfs_handle_struct *handle,
 	return -1;
 }
 
-static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	errno = ENOSYS;
-	return -1;
-}
-
 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
 					  TALLOC_CTX *mem_ctx,
 					  struct tevent_context *ev,
@@ -967,7 +961,6 @@ struct vfs_fn_pointers skel_opaque_fns = {
 	.sendfile_fn = skel_sendfile,
 	.recvfile_fn = skel_recvfile,
 	.rename_fn = skel_rename,
-	.fsync_fn = skel_fsync,
 	.fsync_send_fn = skel_fsync_send,
 	.fsync_recv_fn = skel_fsync_recv,
 	.stat_fn = skel_stat,
diff --git a/examples/VFS/skel_transparent.c b/examples/VFS/skel_transparent.c
index 59d16340025..7a82a55a2af 100644
--- a/examples/VFS/skel_transparent.c
+++ b/examples/VFS/skel_transparent.c
@@ -388,11 +388,6 @@ static int skel_rename(vfs_handle_struct *handle,
 	return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 }
 
-static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	return SMB_VFS_NEXT_FSYNC(handle, fsp);
-}
-
 struct skel_fsync_state {
 	int ret;
 	struct vfs_aio_state vfs_aio_state;
@@ -1140,7 +1135,6 @@ struct vfs_fn_pointers skel_transparent_fns = {
 	.sendfile_fn = skel_sendfile,
 	.recvfile_fn = skel_recvfile,
 	.rename_fn = skel_rename,
-	.fsync_fn = skel_fsync,
 	.fsync_send_fn = skel_fsync_send,
 	.fsync_recv_fn = skel_fsync_recv,
 	.stat_fn = skel_stat,
diff --git a/source3/include/vfs.h b/source3/include/vfs.h
index a31cb5aeaf2..6f940edeeaa 100644
--- a/source3/include/vfs.h
+++ b/source3/include/vfs.h
@@ -245,8 +245,10 @@
 /* Version 37 - Rename SMB_VFS_STRICT_LOCK to
                 SMB_VFS_STRICT_LOCK_CHECK */
 /* Version 38 - Remove SMB_VFS_INIT_SEARCH_OP */
+/* Version 39 - Remove SMB_VFS_FSYNC
+		Only implement async versions. */
 
-#define SMB_VFS_INTERFACE_VERSION 38
+#define SMB_VFS_INTERFACE_VERSION 39
 
 /*
     All intercepted VFS operations must be declared as static functions inside module source
@@ -707,7 +709,6 @@ struct vfs_fn_pointers {
 	int (*rename_fn)(struct vfs_handle_struct *handle,
 			 const struct smb_filename *smb_fname_src,
 			 const struct smb_filename *smb_fname_dst);
-	int (*fsync_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 	struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
 					    TALLOC_CTX *mem_ctx,
 					    struct tevent_context *ev,
@@ -1208,8 +1209,6 @@ ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
 			const struct smb_filename *smb_fname_src,
 			const struct smb_filename *smb_fname_dst);
-int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
-		       struct files_struct *fsp);
 
 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
 					   TALLOC_CTX *mem_ctx,
diff --git a/source3/modules/vfs_catia.c b/source3/modules/vfs_catia.c
index 6f90c4d97bc..b8c61e26ab8 100644
--- a/source3/modules/vfs_catia.c
+++ b/source3/modules/vfs_catia.c
@@ -2078,23 +2078,6 @@ static off_t catia_lseek(vfs_handle_struct *handle,
 	return result;
 }
 
-static int catia_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	struct catia_cache *cc = NULL;
-	int ret;
-
-	ret = CATIA_FETCH_FSP_PRE_NEXT(talloc_tos(), handle, fsp, &cc);
-	if (ret != 0) {
-		return -1;
-	}
-
-	ret = SMB_VFS_NEXT_FSYNC(handle, fsp);
-
-	CATIA_FETCH_FSP_POST_NEXT(&cc, fsp);
-
-	return ret;
-}
-
 struct catia_fsync_state {
 	int ret;
 	struct vfs_aio_state vfs_aio_state;
@@ -2495,7 +2478,6 @@ static struct vfs_fn_pointers vfs_catia_fns = {
 	.pwrite_recv_fn = catia_pwrite_recv,
 	.lseek_fn = catia_lseek,
 	.rename_fn = catia_rename,
-	.fsync_fn = catia_fsync,
 	.fsync_send_fn = catia_fsync_send,
 	.fsync_recv_fn = catia_fsync_recv,
 	.stat_fn = catia_stat,
diff --git a/source3/modules/vfs_ceph.c b/source3/modules/vfs_ceph.c
index 656ce57009f..2062fe47462 100644
--- a/source3/modules/vfs_ceph.c
+++ b/source3/modules/vfs_ceph.c
@@ -562,14 +562,6 @@ static int cephwrap_rename(struct vfs_handle_struct *handle,
 	WRAP_RETURN(result);
 }
 
-static int cephwrap_fsync(struct vfs_handle_struct *handle, files_struct *fsp)
-{
-	int result;
-	DBG_DEBUG("[CEPH] cephwrap_fsync\n");
-	result = ceph_fsync(handle->data, fsp->fh->fd, false);
-	WRAP_RETURN(result);
-}
-
 /*
  * Fake up an async ceph fsync by calling the sychronous API.
  */
@@ -1490,7 +1482,6 @@ static struct vfs_fn_pointers ceph_fns = {
 	.sendfile_fn = cephwrap_sendfile,
 	.recvfile_fn = cephwrap_recvfile,
 	.rename_fn = cephwrap_rename,
-	.fsync_fn = cephwrap_fsync,
 	.fsync_send_fn = cephwrap_fsync_send,
 	.fsync_recv_fn = cephwrap_fsync_recv,
 	.stat_fn = cephwrap_stat,
diff --git a/source3/modules/vfs_default.c b/source3/modules/vfs_default.c
index e2efdabf47c..6de0329b337 100644
--- a/source3/modules/vfs_default.c
+++ b/source3/modules/vfs_default.c
@@ -1127,20 +1127,6 @@ static int vfswrap_rename(vfs_handle_struct *handle,
 	return result;
 }
 
-static int vfswrap_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-#ifdef HAVE_FSYNC
-	int result;
-
-	START_PROFILE(syscall_fsync);
-	result = fsync(fsp->fh->fd);
-	END_PROFILE(syscall_fsync);
-	return result;
-#else
-	return 0;
-#endif
-}
-
 static int vfswrap_stat(vfs_handle_struct *handle,
 			struct smb_filename *smb_fname)
 {
@@ -3036,7 +3022,6 @@ static struct vfs_fn_pointers vfs_default_fns = {
 	.sendfile_fn = vfswrap_sendfile,
 	.recvfile_fn = vfswrap_recvfile,
 	.rename_fn = vfswrap_rename,
-	.fsync_fn = vfswrap_fsync,
 	.fsync_send_fn = vfswrap_fsync_send,
 	.fsync_recv_fn = vfswrap_fsync_recv,
 	.stat_fn = vfswrap_stat,
diff --git a/source3/modules/vfs_full_audit.c b/source3/modules/vfs_full_audit.c
index fbe1715b90e..45d6544b5c2 100644
--- a/source3/modules/vfs_full_audit.c
+++ b/source3/modules/vfs_full_audit.c
@@ -1286,18 +1286,6 @@ static int smb_full_audit_rename(vfs_handle_struct *handle,
 	return result;    
 }
 
-static int smb_full_audit_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	int result;
-	
-	result = SMB_VFS_NEXT_FSYNC(handle, fsp);
-
-	do_log(SMB_VFS_OP_FSYNC, (result >= 0), handle, "%s",
-	       fsp_str_do_log(fsp));
-
-	return result;    
-}
-
 struct smb_full_audit_fsync_state {
 	vfs_handle_struct *handle;
 	files_struct *fsp;
@@ -2531,7 +2519,6 @@ static struct vfs_fn_pointers vfs_full_audit_fns = {
 	.sendfile_fn = smb_full_audit_sendfile,
 	.recvfile_fn = smb_full_audit_recvfile,
 	.rename_fn = smb_full_audit_rename,
-	.fsync_fn = smb_full_audit_fsync,
 	.fsync_send_fn = smb_full_audit_fsync_send,
 	.fsync_recv_fn = smb_full_audit_fsync_recv,
 	.stat_fn = smb_full_audit_stat,
diff --git a/source3/modules/vfs_glusterfs.c b/source3/modules/vfs_glusterfs.c
index 38abb78f1f3..5878c14aba7 100644
--- a/source3/modules/vfs_glusterfs.c
+++ b/source3/modules/vfs_glusterfs.c
@@ -931,12 +931,6 @@ static int vfs_gluster_rename(struct vfs_handle_struct *handle,
 			   smb_fname_dst->base_name);
 }
 
-static int vfs_gluster_fsync(struct vfs_handle_struct *handle,
-			     files_struct *fsp)
-{
-	return glfs_fsync(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp));
-}
-
 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
 						 *handle, TALLOC_CTX *mem_ctx,
 						 struct tevent_context *ev,
@@ -1471,7 +1465,6 @@ static struct vfs_fn_pointers glusterfs_fns = {
 	.sendfile_fn = vfs_gluster_sendfile,
 	.recvfile_fn = vfs_gluster_recvfile,
 	.rename_fn = vfs_gluster_rename,
-	.fsync_fn = vfs_gluster_fsync,
 	.fsync_send_fn = vfs_gluster_fsync_send,
 	.fsync_recv_fn = vfs_gluster_fsync_recv,
 
diff --git a/source3/modules/vfs_streams_xattr.c b/source3/modules/vfs_streams_xattr.c
index c653656e5f8..5355dd8ca44 100644
--- a/source3/modules/vfs_streams_xattr.c
+++ b/source3/modules/vfs_streams_xattr.c
@@ -1323,18 +1323,6 @@ static int streams_xattr_fchmod(vfs_handle_struct *handle,
 	return 0;
 }
 
-static int streams_xattr_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	struct stream_io *sio =
-		(struct stream_io *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
-
-	if (sio == NULL) {
-		return SMB_VFS_NEXT_FSYNC(handle, fsp);
-	}
-
-	return 0;
-}
-
 static ssize_t streams_xattr_fgetxattr(struct vfs_handle_struct *handle,
 				       struct files_struct *fsp,
 				       const char *name,
@@ -1683,7 +1671,6 @@ static struct vfs_fn_pointers vfs_streams_xattr_fns = {
 
 	.fchown_fn = streams_xattr_fchown,
 	.fchmod_fn = streams_xattr_fchmod,
-	.fsync_fn = streams_xattr_fsync,
 
 	.fgetxattr_fn = streams_xattr_fgetxattr,
 	.flistxattr_fn = streams_xattr_flistxattr,
diff --git a/source3/modules/vfs_time_audit.c b/source3/modules/vfs_time_audit.c
index 4a0ec89f044..383f49b7b22 100644
--- a/source3/modules/vfs_time_audit.c
+++ b/source3/modules/vfs_time_audit.c
@@ -938,24 +938,6 @@ static int smb_time_audit_rename(vfs_handle_struct *handle,
 	return result;
 }
 
-static int smb_time_audit_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-	int result;
-	struct timespec ts1,ts2;
-	double timediff;
-
-	clock_gettime_mono(&ts1);
-	result = SMB_VFS_NEXT_FSYNC(handle, fsp);
-	clock_gettime_mono(&ts2);
-	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;
-
-	if (timediff > audit_timeout) {
-		smb_time_audit_log_fsp("fsync", timediff, fsp);
-	}
-
-	return result;
-}
-
 struct smb_time_audit_fsync_state {
 	struct files_struct *fsp;
 	int ret;
@@ -2707,7 +2689,6 @@ static struct vfs_fn_pointers vfs_time_audit_fns = {
 	.sendfile_fn = smb_time_audit_sendfile,
 	.recvfile_fn = smb_time_audit_recvfile,
 	.rename_fn = smb_time_audit_rename,
-	.fsync_fn = smb_time_audit_fsync,
 	.fsync_send_fn = smb_time_audit_fsync_send,
 	.fsync_recv_fn = smb_time_audit_fsync_recv,
 	.stat_fn = smb_time_audit_stat,
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c
index b29a5c54acc..f659c8f2783 100644
--- a/source3/smbd/vfs.c
+++ b/source3/smbd/vfs.c
@@ -1921,13 +1921,6 @@ int smb_vfs_call_rename(struct vfs_handle_struct *handle,
 	return handle->fns->rename_fn(handle, smb_fname_src, smb_fname_dst);
 }
 
-int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
-		       struct files_struct *fsp)
-{
-	VFS_FIND(fsync);
-	return handle->fns->fsync_fn(handle, fsp);
-}
-
 struct smb_vfs_call_fsync_state {
 	int (*recv_fn)(struct tevent_req *req, struct vfs_aio_state *vfs_aio_state);
 	int retval;