From: Tulio A M Mendes <tadryanom@hotmail.com>
Date: Tue, 26 May 2026 04:05:55 +0000 (-0300)
Subject: ext2: add ext2_mount_partition helper (Etapa 5)
X-Git-Url: https://projects.tadryanom.me/?a=commitdiff_plain;h=674f823c045eeb46865bf5c16036d7bc6f8c6141;p=AdrOS.git

ext2: add ext2_mount_partition helper (Etapa 5)

- Added ext2_mount_partition(partition_t*) helper function
- Extracts parent block device and start_lba from partition
- Calls ext2_mount with extracted parameters
- Maintains compatibility with existing ext2_mount signature
- Tests: 124/124 PASS
---

diff --git a/include/ext2.h b/include/ext2.h
index 04098a99..29d22352 100644
--- a/include/ext2.h
+++ b/include/ext2.h
@@ -14,6 +14,7 @@
 #include "blockdev.h"
 #include <stdint.h>
 
+struct partition;
 struct ext2_group_desc;
 
 /* Per-mount filesystem state */
@@ -37,6 +38,9 @@ struct ext2_mount {
  * LBA offset.  Returns a mount result with root node and superblock, or {NULL, NULL} on failure. */
 vfs_mount_result_t ext2_mount(block_device_t* bdev, uint32_t partition_lba);
 
+/* Mount ext2 filesystem from a partition (uses partition's parent and start_lba) */
+vfs_mount_result_t ext2_mount_partition(struct partition* part);
+
 /* Unmount an ext2 filesystem and free its resources */
 void ext2_umount(struct ext2_mount* em);
 
diff --git a/src/kernel/ext2.c b/src/kernel/ext2.c
index 677ce5d5..371ff64d 100644
--- a/src/kernel/ext2.c
+++ b/src/kernel/ext2.c
@@ -10,6 +10,7 @@
 #include "ext2.h"
 #include "fs.h"
 #include "blockdev.h"
+#include "partition.h"
 #include "heap.h"
 #include "utils.h"
 #include "console.h"
@@ -1571,3 +1572,11 @@ void ext2_umount(struct ext2_mount* em) {
         kfree(em);
     }
 }
+
+vfs_mount_result_t ext2_mount_partition(struct partition* part) {
+    if (!part || !part->parent) {
+        vfs_mount_result_t result = {NULL, NULL};
+        return result;
+    }
+    return ext2_mount(part->parent, part->start_lba);
+}