Re: sync patch for minixfs pl 10

[Ulrich Kuehn <kuehn@GOEDEL.UNI-MUENSTER.DE>]

Hi!

Here is an improved patch for the minixfs to use the sync feature
of a mint which has my patch applied, relative to pl 10

Ciao
Ulrich

--
+---------------+----------------------------+-----------------------+
| Ulrich Kuehn  | Internet:                  | Life is uncertain --  |
| Cand.Math.Inf | kuehn@math.uni-muenster.de | eat the dessert first |
+---------------+----------------------------+-----------------------+

------------------ police line, do cross ------------------
diff -uw old/config.h ./config.h
--- old/config.h	Tue Nov  1 01:02:06 1994
+++ ./config.h	Mon Oct 31 23:46:56 1994
@@ -20,6 +20,11 @@
 #define NORMAL 		1	/* sync() on all but writes */
 #define ROBUST		2	/* sync() on everything ***slow*** */
 
+/* uk: define this to let syncing be done by MiNT's sysupdate daemon
+ *     through Sync() system call, set CACHE_MODE TURBO.
+ */
+#define SYSUPDATE
+
 #define SYNC_TIME	5	/* sync time is seconds */
 
 #define MAX_RWS		1024	/* Maximum sectors to read/write atomically */
diff -uw old/filesys.h ./filesys.h
--- old/filesys.h	Tue Nov  1 01:02:22 1994
+++ ./filesys.h	Tue Nov  1 01:13:36 1994
@@ -158,6 +158,7 @@
 #define FS_NOXBIT	0x04	/* if a file can be read, it can be executed */
 #define	FS_LONGPATH	0x08	/* file system understands "size" argument to
 				   "getname" */
+#define FS_DO_SYNC  0x20  /* file system has sync function */
 
 	long	(*root) P_((_wORD drv, fcookie *fc));
 	long	(*lookup) P_((fcookie *dir, char *name, fcookie *fc));
@@ -191,6 +192,7 @@
 	long	(*dskchng) P_((_wORD drv));
 	long	(*release) P_((fcookie *fc));
 	long	(*dupcookie) P_((fcookie *dest, fcookie *src));
+	void  (*sync) P_((void));
 } FILESYS;
 
 /*
diff -uw old/main.c ./main.c
--- old/main.c	Thu Nov 17 17:26:48 1994
+++ ./main.c	Thu Nov 17 17:29:22 1994
@@ -122,6 +122,17 @@
 	{
 		BASEPAGE *b;
 
+#ifdef SYSUPDATE
+		if ((kernel->maj_version) && (kernel->min_version >= 0x12) &&
+		    (kernel->dos_tab[0x150] != NULL) )
+		{
+			/* Do not start the update daemon, or use the root timeout
+			 * method, as the system already has a Sync() system call,
+			 * and hopefully a running update daemon.
+			 */
+		}
+		else
+#endif
 #if 0
 		if(Addroottimeout) Addroottimeout(sync_time*1000l,t_sync,0);
 		else
diff -uw old/minixfs.c ./minixfs.c
--- old/minixfs.c	Sun Oct 30 22:51:18 1994
+++ ./minixfs.c	Mon Oct 31 23:48:34 1994
@@ -6,7 +6,11 @@
 
 FILESYS minix_filesys = {
 	(FILESYS *) 0,
+#ifdef SYSUPDATE
+	FS_CASESENSITIVE | FS_LONGPATH | FS_DO_SYNC,
+#else
 	FS_CASESENSITIVE | FS_LONGPATH,
+#endif
 	m_root, m_lookup, m_creat, m_getdev,
 	m_getxattr, m_chattr, m_chown,
 	m_chmode, m_mkdir,
@@ -17,7 +21,10 @@
 	m_wlabel, m_rlabel,
 	m_symlink, m_readlink,
 	m_hardlink, m_fscntl, m_dskchng,
-	m_release,m_dupcookie
+	m_release,m_dupcookie,
+#ifdef SYSUPDATE
+	l_sync
+#endif
 };
 
 extern DEVDRV minix_dev;