svn commit: r219950 - head/sys/geom

[Alexander Motin]

Author: mav
Date: Thu Mar 24 08:37:48 2011
New Revision: 219950
URL: http://svn.freebsd.org/changeset/base/219950

Log:
  MFgraid/head r217827:
  Change BIO_GETATTR("GEOM::kerneldump") API to make set_dumper() called by
  consumer (geom_dev) instead of provider (geom_disk). This allows any geom
  insert it's code into the dump call chain, implementing more sophisticated
  functionality then just disk partitioning.

Modified:
  head/sys/geom/geom.h
  head/sys/geom/geom_dev.c
  head/sys/geom/geom_disk.c

Modified: head/sys/geom/geom.h
==============================================================================
--- head/sys/geom/geom.h	Thu Mar 24 07:59:21 2011	(r219949)
+++ head/sys/geom/geom.h	Thu Mar 24 08:37:48 2011	(r219950)
@@ -43,6 +43,7 @@
 #include <sys/sx.h>
 #include <sys/queue.h>
 #include <sys/ioccom.h>
+#include <sys/conf.h>
 #include <sys/sbuf.h>
 #include <sys/module.h>
 
@@ -303,6 +304,7 @@ extern struct sx topology_lock;
 struct g_kerneldump {
 	off_t		offset;
 	off_t		length;
+	struct dumperinfo di;
 };
 
 MALLOC_DECLARE(M_GEOM);

Modified: head/sys/geom/geom_dev.c
==============================================================================
--- head/sys/geom/geom_dev.c	Thu Mar 24 07:59:21 2011	(r219949)
+++ head/sys/geom/geom_dev.c	Thu Mar 24 08:37:48 2011	(r219950)
@@ -289,8 +289,11 @@ g_dev_ioctl(struct cdev *dev, u_long cmd
 		kd.length = OFF_MAX;
 		i = sizeof kd;
 		error = g_io_getattr("GEOM::kerneldump", cp, &i, &kd);
-		if (!error)
-			dev->si_flags |= SI_DUMPDEV;
+		if (!error) {
+			error = set_dumper(&kd.di);
+			if (!error)
+				dev->si_flags |= SI_DUMPDEV;
+		}
 		break;
 	case DIOCGFLUSH:
 		error = g_io_flush(cp);

Modified: head/sys/geom/geom_disk.c
==============================================================================
--- head/sys/geom/geom_disk.c	Thu Mar 24 07:59:21 2011	(r219949)
+++ head/sys/geom/geom_disk.c	Thu Mar 24 08:37:48 2011	(r219950)
@@ -43,7 +43,6 @@ __FBSDID("$FreeBSD$");
 #include <sys/kernel.h>
 #include <sys/sysctl.h>
 #include <sys/bio.h>
-#include <sys/conf.h>
 #include <sys/ctype.h>
 #include <sys/fcntl.h>
 #include <sys/malloc.h>
@@ -163,10 +162,8 @@ g_disk_access(struct g_provider *pp, int
 
 static void
 g_disk_kerneldump(struct bio *bp, struct disk *dp)
-{ 
-	int error;
+{
 	struct g_kerneldump *gkd;
-	struct dumperinfo di;
 	struct g_geom *gp;
 
 	gkd = (struct g_kerneldump*)bp->bio_data;
@@ -177,16 +174,15 @@ g_disk_kerneldump(struct bio *bp, struct
 		g_io_deliver(bp, ENODEV);
 		return;
 	}
-	di.dumper = dp->d_dump;
-	di.priv = dp;
-	di.blocksize = dp->d_sectorsize;
-	di.maxiosize = dp->d_maxsize;
-	di.mediaoffset = gkd->offset;
+	gkd->di.dumper = dp->d_dump;
+	gkd->di.priv = dp;
+	gkd->di.blocksize = dp->d_sectorsize;
+	gkd->di.maxiosize = dp->d_maxsize;
+	gkd->di.mediaoffset = gkd->offset;
 	if ((gkd->offset + gkd->length) > dp->d_mediasize)
 		gkd->length = dp->d_mediasize - gkd->offset;
-	di.mediasize = gkd->length;
-	error = set_dumper(&di);
-	g_io_deliver(bp, error);
+	gkd->di.mediasize = gkd->length;
+	g_io_deliver(bp, 0);
 }
 
 static void