From: Ben Gras <ben@minix3.org>
Date: Fri, 23 Dec 2011 14:02:35 +0000 (+0100)
Subject: fix for checking CLEAN-ness of ramdisk image
X-Git-Tag: v3.2.0~155
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/static/host.html?a=commitdiff_plain;h=51de979ed975034870f928c58ab3750ba76c9b07;p=minix.git

fix for checking CLEAN-ness of ramdisk image

	. pre-cleanflag ("old") mkfs generates without CLEAN flag,
	  causing boot not working because imgrd disappears after 1st
	  close
	. fixed sanity check for this situation
	. disable imgrd disappearing in memory driver so
	  readonly mount succeeds in case it happens anyway
---

diff --git a/drivers/memory/memory.c b/drivers/memory/memory.c
index e1433f15e..e1805a01b 100644
--- a/drivers/memory/memory.c
+++ b/drivers/memory/memory.c
@@ -526,6 +526,7 @@ PRIVATE int m_block_close(dev_t minor)
   }
   openct[minor]--;
 
+#if 0
   /* Special case: free initial ramdisk after it's been unmounted once. */
   if(minor == IMGRD_DEV && openct[minor] == 0 && m_vaddrs[IMGRD_DEV]) {
 	vir_bytes vaddr, vlen;
@@ -547,6 +548,7 @@ PRIVATE int m_block_close(dev_t minor)
 	m_geom[IMGRD_DEV].dv_size= cvul64(0);
 	m_vaddrs[IMGRD_DEV] = 0;
   }
+#endif
 
   return(OK);
 }
diff --git a/drivers/ramdisk/Makefile b/drivers/ramdisk/Makefile
index dacf0ffa1..72964e294 100644
--- a/drivers/ramdisk/Makefile
+++ b/drivers/ramdisk/Makefile
@@ -47,6 +47,7 @@ image:	proto.gen mtab rc $(EXTRA)
 	then	: ;	\
 	else	echo "CLEAN sanity check of image failed."	;	\
 		echo "(Perhaps install current mkfs and fsck.)" ;	\
+		rm -f image; false;             \
 	fi
 
 ahci: ../ahci/ahci