Changeset 626 for trunk/kernel/syscalls/sys_readdir.c

Timestamp:

Apr 29, 2019, 7:25:09 PM (6 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/syscalls/sys_readdir.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_readdir.c

@@ -2 +2 @@
  * sys_readdir.c - Copy one entry from an open VFS directory to an user buffer.
  *
- * Author    Alain Greiner (2016,2017,2018)
+ * Author    Alain Greiner (2016,2017,2018,2019)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -113 +113 @@
 
     // copy dirent pointer to user buffer 
-    hal_copy_to_uspace( buffer, &direntp , sizeof(void *) );
+    hal_copy_to_uspace( local_cxy,
+                        &direntp,
+                        buffer,
+                        sizeof(void *) );
 
     // update current index in user_dir structure