From 8a73de51f1d8a758ecf202bce9692534025058d7 Mon Sep 17 00:00:00 2001
From: Thomas Veerman <thomas@minix3.org>
Date: Mon, 22 Aug 2011 15:02:13 +0000
Subject: [PATCH] Tell VFS how many requests an FS can handle concurrently

---
 common/include/minix/vfsif.h | 1 +
 lib/libvtreefs/mount.c       | 2 ++
 servers/ext2/mount.c         | 2 ++
 servers/hgfs/mount.c         | 2 ++
 servers/iso9660fs/mount.c    | 2 ++
 servers/mfs/mount.c          | 2 ++
 6 files changed, 11 insertions(+)

diff --git a/common/include/minix/vfsif.h b/common/include/minix/vfsif.h
index ce76ad33c..6c40de2a0 100644
--- a/common/include/minix/vfsif.h
+++ b/common/include/minix/vfsif.h
@@ -53,6 +53,7 @@
 #define RES_SEEK_POS_LO		m9_l4
 #define RES_SYMLOOP		m9_s3
 #define RES_UID			m9_s4
+#define RES_CONREQS		m9_s3
 
 /* VFS/FS flags */
 #define REQ_RDONLY		001
diff --git a/lib/libvtreefs/mount.c b/lib/libvtreefs/mount.c
index 652b13018..2813e749c 100644
--- a/lib/libvtreefs/mount.c
+++ b/lib/libvtreefs/mount.c
@@ -35,6 +35,8 @@ PUBLIC int fs_readsuper(void)
 	fs_m_out.RES_GID = root->i_stat.gid;
 	fs_m_out.RES_DEV = NO_DEV;
 
+	fs_m_out.RES_CONREQS = 1;/* We can handle only 1 request at a time */
+
 	fs_mounted = TRUE;
 
 	return OK;
diff --git a/servers/ext2/mount.c b/servers/ext2/mount.c
index 08341dce1..e5802ab8a 100644
--- a/servers/ext2/mount.c
+++ b/servers/ext2/mount.c
@@ -169,6 +169,8 @@ PUBLIC int fs_readsuper()
   fs_m_out.RES_UID = root_ip->i_uid;
   fs_m_out.RES_GID = root_ip->i_gid;
 
+  fs_m_out.RES_CONREQS = 1;	/* We can handle only 1 request at a time */
+
   return(r);
 }
 
diff --git a/servers/hgfs/mount.c b/servers/hgfs/mount.c
index e1b83351e..5f9693069 100644
--- a/servers/hgfs/mount.c
+++ b/servers/hgfs/mount.c
@@ -62,6 +62,8 @@ PUBLIC int do_readsuper()
   m_out.RES_GID = opt.gid;
   m_out.RES_DEV = NO_DEV;
 
+  m_out.RES_CONREQS = 1;	/* We can handle only 1 request at a time */
+
   state.mounted = TRUE;
 
   return OK;
diff --git a/servers/iso9660fs/mount.c b/servers/iso9660fs/mount.c
index b9842fdd0..4ec990c3a 100644
--- a/servers/iso9660fs/mount.c
+++ b/servers/iso9660fs/mount.c
@@ -59,6 +59,8 @@ PUBLIC int fs_readsuper() {
   fs_m_out.RES_UID = SYS_UID; /* Always root */
   fs_m_out.RES_GID = SYS_GID; /* operator */
 
+  fs_m_out.RES_CONREQS = 1;	/* We can handle only 1 request at a time */
+
   return(r);
 }
 
diff --git a/servers/mfs/mount.c b/servers/mfs/mount.c
index 9e3b43b08..614f9777a 100644
--- a/servers/mfs/mount.c
+++ b/servers/mfs/mount.c
@@ -96,6 +96,8 @@ PUBLIC int fs_readsuper()
   fs_m_out.RES_UID = root_ip->i_uid;
   fs_m_out.RES_GID = root_ip->i_gid;
 
+  fs_m_out.RES_CONREQS = 1;	/* We can handle only 1 request at a time */
+
   return(r);
 }
 
-- 
2.44.0