From 017a6a964c06eb8a3dbe30281d5a3bb3ac8f3ca5 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Fri, 19 Sep 2025 01:41:56 -0400
Subject: kernel: mount: Add mountpoint allocation

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/sys/include/sys/mount.h | 11 +++++++++++
 src/sys/os/vfs_mount.c      | 29 +++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)

(limited to 'src')

diff --git a/src/sys/include/sys/mount.h b/src/sys/include/sys/mount.h
index c2beb8d..0296b70 100644
--- a/src/sys/include/sys/mount.h
+++ b/src/sys/include/sys/mount.h
@@ -133,5 +133,16 @@ int mount(struct mount_args *margs, uint32_t flags);
  */
 int mountlist_init(struct mountlist *mlp);
 
+/*
+ * Allocate a new mountpoint
+ *
+ * @name: The name to allocate mountpoint as
+ * @mp_res: Result pointer is written here
+ *
+ * Returns zero on success, otherwise a less than
+ * zero value to indicate failure.
+ */
+int mount_alloc(const char *name, struct mount **mp_res);
+
 #endif  /* !_KERNEL */
 #endif  /* !_SYS_MOUNT_H_ */
diff --git a/src/sys/os/vfs_mount.c b/src/sys/os/vfs_mount.c
index f1d7ffd..69aec10 100644
--- a/src/sys/os/vfs_mount.c
+++ b/src/sys/os/vfs_mount.c
@@ -29,6 +29,7 @@
 
 #include <sys/types.h>
 #include <sys/syslog.h>
+#include <sys/param.h>
 #include <sys/errno.h>
 #include <sys/cdefs.h>
 #include <sys/mount.h>
@@ -41,6 +42,34 @@
  */
 static struct mountlist root;
 
+
+/*
+ * Allocate a new mountpoint
+ */
+int
+mount_alloc(const char *name, struct mount **mp_res)
+{
+    struct mount *mp;
+    size_t len, slen;
+
+    if (mp_res == NULL || name == NULL) {
+        return -EINVAL;
+    }
+
+    mp = kalloc(sizeof(*mp));
+    if (mp == NULL) {
+        printf("mount_alloc: allocation failure\n");
+        return -ENOMEM;
+    }
+
+    slen = strlen(name);
+    len = MIN(sizeof(mp->name), slen);
+    memcpy(mp->name, name, len);
+
+    *mp_res = mp;
+    return 0;
+}
+
 /*
  * Mount a filesystem
  */
-- 
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