Mark functions as static

Mark functions used only in the same translation unit as static. This
only includes functions that do not have a prototype in a header file
either.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Closes #10470

lib/libzfs/libzfs_dataset.c

@@ -806,7 +806,7 @@ libzfs_mnttab_init(libzfs_handle_t *hdl)
 	    sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node));
 }
 
-int
+static int
 libzfs_mnttab_update(libzfs_handle_t *hdl)
 {
 	struct mnttab entry;
@@ -1620,7 +1620,7 @@ error:
 	return (NULL);
 }
 
-int
+static int
 zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl)
 {
 	uint64_t old_volsize;
@@ -2551,7 +2551,7 @@ struct get_clones_arg {
 	char buf[ZFS_MAX_DATASET_NAME_LEN];
 };
 
-int
+static int
 get_clones_cb(zfs_handle_t *zhp, void *arg)
 {
 	struct get_clones_arg *gca = arg;
@@ -3129,7 +3129,7 @@ zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop)
 	return (val);
 }
 
-int
+static int
 zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val)
 {
 	char buf[64];

lib/libzfs/libzfs_iter.c

@@ -38,7 +38,7 @@
 
 #include "libzfs_impl.h"
 
-int
+static int
 zfs_iter_clones(zfs_handle_t *zhp, zfs_iter_f func, void *data)
 {
 	nvlist_t *nvl = zfs_get_clones_nvl(zhp);

lib/libzfs/libzfs_mount.c

@@ -822,7 +822,7 @@ zfs_unshare_smb(zfs_handle_t *zhp, const char *mountpoint)
 /*
  * Same as zfs_unmountall(), but for NFS and SMB unshares.
  */
-int
+static int
 zfs_unshareall_proto(zfs_handle_t *zhp, zfs_share_proto_t *proto)
 {
 	prop_changelist_t *clp;

lib/libzfs/libzfs_pool.c

@@ -445,7 +445,7 @@ bootfs_name_valid(const char *pool, const char *bootfs)
 	return (B_FALSE);
 }
 
-boolean_t
+static boolean_t
 zpool_is_bootable(zpool_handle_t *zhp)
 {
 	char bootfs[ZFS_MAX_DATASET_NAME_LEN];
@@ -2141,7 +2141,7 @@ xlate_init_err(int err)
  * Begin, suspend, or cancel the initialization (initializing of all free
  * blocks) for the given vdevs in the given pool.
  */
-int
+static int
 zpool_initialize_impl(zpool_handle_t *zhp, pool_initialize_func_t cmd_type,
     nvlist_t *vds, boolean_t wait)
 {

lib/libzfs/libzfs_sendrecv.c

@@ -2296,7 +2296,7 @@ err_out:
 	return (err);
 }
 
-zfs_handle_t *
+static zfs_handle_t *
 name_to_dir_handle(libzfs_handle_t *hdl, const char *snapname)
 {
 	char dirname[ZFS_MAX_DATASET_NAME_LEN];
@@ -2877,7 +2877,7 @@ typedef struct guid_to_name_data {
 	uint64_t num_redact_snaps;
 } guid_to_name_data_t;
 
-boolean_t
+static boolean_t
 redact_snaps_match(zfs_handle_t *zhp, guid_to_name_data_t *gtnd)
 {
 	uint64_t *bmark_snaps;

lib/libzfs/libzfs_util.c

@@ -1773,7 +1773,7 @@ typedef struct expand_data {
 	zfs_type_t type;
 } expand_data_t;
 
-int
+static int
 zprop_expand_list_cb(int prop, void *cb)
 {
 	zprop_list_t *entry;