Changeset eabc094c in mainline

Timestamp:

2025-06-09T21:11:16Z (3 days ago)

Author:

Miroslav Cimerman <mc@…>

Children:

0fce1a6

Parents:

f34568c

Message:

hr: add superblock erasure op

Location:

uspace/srv/bd/hr

Files:

• metadata/native.c (modified) (3 diffs)
• superblock.h (modified) (1 diff)

uspace/srv/bd/hr/metadata/native.c

@@ -60 +60 @@
 static errno_t meta_native_get_block(service_id_t, void **);
 static errno_t meta_native_write_block(service_id_t, const void *);
+static errno_t meta_native_erase_block(service_id_t);
 static bool meta_native_has_valid_magic(const void *);
 static bool meta_native_compare_uuids(const void *, const void *);
@@ -80 +81 @@
         .get_block = meta_native_get_block,
         .write_block = meta_native_write_block,
+        .erase_block = meta_native_erase_block,
         .has_valid_magic = meta_native_has_valid_magic,
         .compare_uuids = meta_native_compare_uuids,
@@ -322 +324 @@
 }
 
+static errno_t meta_native_erase_block(service_id_t dev)
+{
+        HR_DEBUG("%s()", __func__);
+
+        errno_t rc;
+        size_t bsize;
+
+        rc = block_get_bsize(dev, &bsize);
+        if (rc != EOK)
+                return rc;
+
+        void *zero_block = calloc(1, bsize);
+        if (zero_block == NULL)
+                return ENOMEM;
+
+        rc = meta_native_write_block(dev, zero_block);
+        return rc;
+}
+
 static bool meta_native_has_valid_magic(const void *md_v)
 {

uspace/srv/bd/hr/superblock.h

@@ -51 +51 @@
         errno_t (*get_block)(service_id_t, void **);
         errno_t (*write_block)(service_id_t, const void *);
+        errno_t (*erase_block)(service_id_t);
         bool (*has_valid_magic)(const void *);
         bool (*compare_uuids)(const void *, const void *);