Changeset 626 for trunk/kernel/mm/mapper.h

Timestamp:

Apr 29, 2019, 7:25:09 PM (5 years ago)

Author:

alain

Message:

This version has been tested on the sort multithreaded application
for TSAR_IOB architectures ranging from 1 to 8 clusters.
It fixes three bigs bugs:
1) the dev_ioc device API has been modified: the dev_ioc_sync_read()
and dev_ioc_sync_write() function use now extended pointers on the
kernel buffer to access a mapper stored in any cluster.
2) the hal_uspace API has been modified: the hal_copy_to_uspace()
and hal_copy_from_uspace() functions use now a (cxy,ptr) couple
to identify the target buffer (equivalent to an extended pointer.
3) an implementation bug has been fixed in the assembly code contained
in the hal_copy_to_uspace() and hal_copy_from_uspace() functions.

File:

• trunk/kernel/mm/mapper.h (modified) (2 diffs)

trunk/kernel/mm/mapper.h

@@ -62 +62 @@
  *   and the  allocated memory is only released when the mapper/inode is destroyed.
  *
- * TODO : the mapper being only used to implement the VFS cache(s), the mapper.c
- *        and mapper.h file should be trandfered to the fs directory.
+ * TODO (1) the mapper being only used to implement the VFS cache(s), the mapper.c
+ *          and mapper.h file should be trandfered to the fs directory.
+ * TODO (2) the "type" field is probably unused... 
  ******************************************************************************************/
 
@@ -230 +231 @@
 
 /*******************************************************************************************
- * This scans all pages present in the mapper identified by the <mapper> argument,
+ * This function scan all pages present in the mapper identified by the <mapper> argument,
  * and synchronize all pages maked as dirty" on disk. 
  * These pages are unmarked and removed from the local PPM dirty_list.