[XFS] 956618: Linux crashes on boot with XFS-DMAPI filesystem when

CONFIG_XFS_TRACE is on

SGI-PV: 956618
SGI-Modid: xfs-linux-melb:xfs-kern:27196a
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

fs/xfs/Makefile-linux-2.6

@@ -21,22 +21,7 @@ EXTRA_CFLAGS +=	 -Ifs/xfs -Ifs/xfs/linux-2.6 -funsigned-char
 XFS_LINUX := linux-2.6
 
 ifeq ($(CONFIG_XFS_DEBUG),y)
-	EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG
-	EXTRA_CFLAGS += -DXFS_BUF_LOCK_TRACKING
-endif
-ifeq ($(CONFIG_XFS_TRACE),y)
-	EXTRA_CFLAGS += -DXFS_ALLOC_TRACE
-	EXTRA_CFLAGS += -DXFS_ATTR_TRACE
-	EXTRA_CFLAGS += -DXFS_BLI_TRACE
-	EXTRA_CFLAGS += -DXFS_BMAP_TRACE
-	EXTRA_CFLAGS += -DXFS_BMBT_TRACE
-	EXTRA_CFLAGS += -DXFS_DIR2_TRACE
-	EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
-	EXTRA_CFLAGS += -DXFS_ILOCK_TRACE
-	EXTRA_CFLAGS += -DXFS_LOG_TRACE
-	EXTRA_CFLAGS += -DXFS_RW_TRACE
-	EXTRA_CFLAGS += -DXFS_BUF_TRACE
-	EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+	EXTRA_CFLAGS += -g
 endif
 
 obj-$(CONFIG_XFS_FS)		+= xfs.o

fs/xfs/linux-2.6/xfs_buf.c

@@ -15,6 +15,7 @@
  * along with this program; if not, write the Free Software Foundation,
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
+#include "xfs.h"
 #include <linux/stddef.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
@@ -31,7 +32,6 @@
 #include <linux/kthread.h>
 #include <linux/migrate.h>
 #include <linux/backing-dev.h>
-#include "xfs_linux.h"
 
 STATIC kmem_zone_t *xfs_buf_zone;
 STATIC kmem_shaker_t xfs_buf_shake;
@@ -1406,7 +1406,7 @@ xfs_alloc_bufhash(
 	btp->bt_hashshift = external ? 3 : 8;	/* 8 or 256 buckets */
 	btp->bt_hashmask = (1 << btp->bt_hashshift) - 1;
 	btp->bt_hash = kmem_zalloc((1 << btp->bt_hashshift) *
-					sizeof(xfs_bufhash_t), KM_SLEEP);
+					sizeof(xfs_bufhash_t), KM_SLEEP | KM_LARGE);
 	for (i = 0; i < (1 << btp->bt_hashshift); i++) {
 		spin_lock_init(&btp->bt_hash[i].bh_lock);
 		INIT_LIST_HEAD(&btp->bt_hash[i].bh_list);

fs/xfs/support/debug.c

@@ -15,11 +15,9 @@
  * along with this program; if not, write the Free Software Foundation,
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
+#include <xfs.h>
 #include "debug.h"
 #include "spin.h"
-#include <asm/page.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
 
 static char		message[256];	/* keep it off the stack */
 static DEFINE_SPINLOCK(xfs_err_lock);

fs/xfs/xfs.h

@@ -17,5 +17,28 @@
  */
 #ifndef __XFS_H__
 #define __XFS_H__
+
+#ifdef CONFIG_XFS_DEBUG
+#define STATIC
+#define DEBUG 1
+#define XFS_BUF_LOCK_TRACKING 1
+/* #define QUOTADEBUG 1 */
+#endif
+
+#ifdef CONFIG_XFS_TRACE
+#define XFS_ALLOC_TRACE 1
+#define XFS_ATTR_TRACE 1
+#define XFS_BLI_TRACE 1
+#define XFS_BMAP_TRACE 1
+#define XFS_BMBT_TRACE 1
+#define XFS_DIR2_TRACE 1
+#define XFS_DQUOT_TRACE 1
+#define XFS_ILOCK_TRACE 1
+#define XFS_LOG_TRACE 1
+#define XFS_RW_TRACE 1
+#define XFS_BUF_TRACE 1
+#define XFS_VNODE_TRACE 1
+#endif
+
 #include <linux-2.6/xfs_linux.h>
 #endif	/* __XFS_H__ */