linux-kernel - [PATCH 06/11] kexec: Set IORESOURCE_SYSTEM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1450136246-17053-6-git-send-email-toshi.kani@hpe.com>
Date:	Mon, 14 Dec 2015 16:37:21 -0700
From:	Toshi Kani <toshi.kani@....com>
To:	akpm@...ux-foundation.org, bp@...en8.de
Cc:	linux-arch@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Dave Young <dyoung@...hat.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Toshi Kani <toshi.kani@....com>
Subject: [PATCH 06/11] kexec: Set IORESOURCE_SYSTEM_RAM to System RAM

Set IORESOURCE_SYSTEM_RAM to the flags of resource ranges with
"System RAM", and "Crash kernel", which is a child node of
System RAM.

Change kexec_add_buffer() to call walk_iomem_res() with
IORESOURCE_SYSTEM_RAM type for "Crash kernel".

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Dave Young <dyoung@...hat.com>
Cc: Vivek Goyal <vgoyal@...hat.com>
Signed-off-by: Toshi Kani <toshi.kani@....com>
---
 kernel/kexec_core.c |    6 +++---
 kernel/kexec_file.c |    2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 11b64a6..c47cd98 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -66,13 +66,13 @@ struct resource crashk_res = {
 	.name  = "Crash kernel",
 	.start = 0,
 	.end   = 0,
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 struct resource crashk_low_res = {
 	.name  = "Crash kernel",
 	.start = 0,
 	.end   = 0,
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 int kexec_should_crash(struct task_struct *p)
@@ -934,7 +934,7 @@ int crash_shrink_memory(unsigned long new_size)
 
 	ram_res->start = end;
 	ram_res->end = crashk_res.end;
-	ram_res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
+	ram_res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
 	ram_res->name = "System RAM";
 
 	crashk_res.end = end - 1;
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index b70ada0..c245085 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -523,7 +523,7 @@ int kexec_add_buffer(struct kimage *image, char *buffer, unsigned long bufsz,
 	/* Walk the RAM ranges and allocate a suitable range for the buffer */
 	if (image->type == KEXEC_TYPE_CRASH)
 		ret = walk_iomem_res("Crash kernel",
-				     IORESOURCE_MEM | IORESOURCE_BUSY,
+				     IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY,
 				     crashk_res.start, crashk_res.end, kbuf,
 				     locate_mem_hole_callback);
 	else
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/