Changeset f07f6b2 in mainline

Timestamp:

2010-11-29T19:51:21Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c2f4b6b

Parents:

5581b469

Message:

Add fs_handle_to_info().

Location:

uspace/srv/vfs

Files:

• vfs.h (modified) (1 diff)
• vfs_register.c (modified) (1 diff)

uspace/srv/vfs/vfs.h

@@ -172 +172 @@
 
 extern fs_handle_t fs_name_to_handle(char *, bool);
+extern vfs_info_t *fs_handle_to_info(fs_handle_t);
 
 extern int vfs_lookup_internal(char *, int, vfs_lookup_res_t *,

uspace/srv/vfs/vfs_register.c

@@ -333 +333 @@
 }
 
+/** Find the VFS info structure.
+ *
+ * @param handle        FS handle for which the VFS info structure is sought.
+ * @return              VFS info structure on success or NULL otherwise.
+ */
+vfs_info_t *fs_handle_to_info(fs_handle_t handle)
+{
+        vfs_info_t *info = NULL;
+        link_t *cur;
+
+        fibril_mutex_lock(&fs_head_lock);
+        for (cur = fs_head.next; cur != &fs_head; cur = cur->next) {
+                fs_info_t *fs = list_get_instance(cur, fs_info_t, fs_link);
+                if (fs->fs_handle == handle) { 
+                        info = &fs->vfs_info;
+                        break;
+                }
+        }
+        fibril_mutex_unlock(&fs_head_lock);
+
+        return info;
+}
+
 /**
  * @}