makedumpfile: Revert "makedumpfile: disable mmap"

This reverts commit 2dc9600ad1:

commit 2dc9600
Author: Dave Young <dyoung@redhat.com>
Date:   Thu Nov 14 10:51:47 2013 +0800

    makedumpfile: disable mmap

    There's a  kernel bug for mapping mem ranges which end with
    an address not aligned to page boundry. It's still not resolved
    in upstream, so let's disable mmap read for now as a workaround.

    Once upstream got a right fix we can revert this patch.

    Signed-off-by: Dave Young <dyoung@redhat.com>

Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>

kexec-tools-2.0.4-makedumpfile-disable-mmap.patch

@@ -1,36 +0,0 @@
-makedumpfile: disable mmap read
-
-There's a kernel bug for mapping mem ranges which end with
-an address not aligned to page boundry. It's still not resolved
-in upstream, so let's disable mmap read for now as a workaround.
-
-Once upstream got a right fix we can revert this patch.
-
-Signed-off-by: Dave Young <dyoung@redhat.com>
----
- makedumpfile.c |    7 +++++++
- 1 file changed, 7 insertions(+)
-
---- kexec-tools/makedumpfile-1.5.4/makedumpfile.c.orig
-+++ kexec-tools/makedumpfile-1.5.4/makedumpfile.c
-@@ -3144,6 +3144,12 @@ out:
- 	if (info->dump_level & DL_EXCLUDE_FREE)
- 		setup_page_is_buddy();
- 
-+	/* There's a kernel bug for mapping mem ranges which end with
-+	 * an address not aligned to page boundry. It's still not resolved
-+	 * in upstream, so let's disable mmap read for now.
-+	 */
-+	info->flag_usemmap = FALSE;
-+#if 0
- 	if (!initialize_mmap()) {
- 		/* this kernel does not support mmap of vmcore */
- 		DEBUG_MSG("Kernel can't mmap vmcore, using reads.\n");
-@@ -3152,6 +3158,7 @@ out:
- 		DEBUG_MSG("read %s with mmap()\n", info->name_memory);
- 		info->flag_usemmap = TRUE;
- 	}
-+#endif
- 
- 	return TRUE;
- }

kexec-tools.spec

@@ -89,7 +89,6 @@ Patch607: kexec-tools-2.0.4-makedumpfile-Update-pfn_cyclic-when-the-cyclic-buffe
 Patch608: kexec-tools-2.0.4-makedumpfile-Use-divideup-to-calculate-maximum-required-bit.patch
 Patch609: kexec-tools-2.0.4-makedumpfile-cache-Allocate-buffers-at-initialization-t.patch
 Patch610: kexec-tools-2.0.4-makedumpfile-cache-Reuse-entry-in-pending-list.patch
-Patch611: kexec-tools-2.0.4-makedumpfile-disable-mmap.patch
 Patch612: kexec-tools-2.0.4-makedumpfile-Understand-v3.11-rc4-dmesg.patch
 
 %description
@@ -129,7 +128,6 @@ tar -z -x -v -f %{SOURCE19}
 %patch608 -p1
 %patch609 -p1
 %patch610 -p1
-%patch611 -p1
 %patch001 -p1
 %patch002 -p1
 %patch003 -p1