Changeset 656 for trunk/kernel/mm/kcm.c

Timestamp:

Dec 6, 2019, 12:07:51 PM (4 years ago)

Author:

alain

Message:

Fix several bugs in the FATFS and in the VFS,
related to the creation of big files requiring
more than 4 Kbytes (one cluster) on device.

File:

• trunk/kernel/mm/kcm.c (modified) (3 diffs)

trunk/kernel/mm/kcm.c

@@ -509 +509 @@
         {
         // get one 4 Kbytes page from remote PPM
-        page_t * page = ppm_remote_alloc_pages( kcm_cxy , 0 );
-
-            if( page == NULL )
+        xptr_t page_xp = ppm_remote_alloc_pages( kcm_cxy , 0 );
+
+            if( page_xp == XPTR_NULL )
             {
                     printk("\n[ERROR] in %s : failed to allocate page in cluster %x\n",
@@ -519 +519 @@
         }
 
-            // get remote page base address
-            xptr_t base_xp = ppm_page2base( XPTR( kcm_cxy , page ) );
+            // get extended pointer on allocated buffer
+            xptr_t base_xp = ppm_page2base( page_xp );
 
         // get local pointer on kcm_page
@@ -529 +529 @@
             hal_remote_s64( XPTR( kcm_cxy , &kcm_page->status ) , 0 );
             hal_remote_spt( XPTR( kcm_cxy , &kcm_page->kcm )    , kcm_ptr );
-            hal_remote_spt( XPTR( kcm_cxy , &kcm_page->page )   , page );
+            hal_remote_spt( XPTR( kcm_cxy , &kcm_page->page )   , GET_PTR( page_xp ) );
 
             // introduce new page in remote KCM active_list