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From: Toshi Kani <toshi.kani@hpe.com>
To: akpm@linux-foundation.org, bp@alien8.de
Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, Dave Young <dyoung@redhat.com>,
	kexec@lists.infradead.org, Toshi Kani <toshi.kani@hpe.com>
Subject: [PATCH v3 07/17] kexec: Set IORESOURCE_SYSTEM_RAM to System RAM
Date: Tue,  5 Jan 2016 11:54:31 -0700	[thread overview]
Message-ID: <1452020081-26534-7-git-send-email-toshi.kani@hpe.com> (raw)
In-Reply-To: <1452020081-26534-1-git-send-email-toshi.kani@hpe.com>

Set IORESOURCE_SYSTEM_RAM to 'flags' and IORES_DESC_CRASH_KERNEL
to 'desc' of "Crash kernel" resource ranges, which are child
nodes of System RAM.

Change crash_shrink_memory() to set IORESOURCE_SYSTEM_RAM for
a System RAM range.

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

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Young <dyoung@redhat.com>
Cc: kexec@lists.infradead.org
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
---
 kernel/kexec_core.c |    8 +++++---
 kernel/kexec_file.c |    2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 11b64a6..80bff05 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -66,13 +66,15 @@ struct resource crashk_res = {
 	.name  = "Crash kernel",
 	.start = 0,
 	.end   = 0,
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
+	.desc  = IORES_DESC_CRASH_KERNEL
 };
 struct resource crashk_low_res = {
 	.name  = "Crash kernel",
 	.start = 0,
 	.end   = 0,
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
+	.desc  = IORES_DESC_CRASH_KERNEL
 };
 
 int kexec_should_crash(struct task_struct *p)
@@ -934,7 +936,7 @@ 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

  parent reply	other threads:[~2016-01-05 18:58 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-05 18:54 [PATCH v3 01/17] resource: Add System RAM resource type Toshi Kani
2016-01-05 18:54 ` [PATCH v3 02/17] resource: make resource flags handled properly Toshi Kani
2016-01-05 18:54 ` [PATCH v3 03/17] resource: Add I/O resource descriptor Toshi Kani
2016-01-05 18:54 ` [PATCH v3 04/17] x86/e820: Set System RAM type and descriptor Toshi Kani
2016-01-05 18:54 ` [PATCH v3 05/17] ia64: " Toshi Kani
2016-01-05 19:04   ` Luck, Tony
2016-01-05 18:54 ` [PATCH v3 06/17] arch: Set IORESOURCE_SYSTEM_RAM to System RAM Toshi Kani
2016-01-24 18:00   ` Borislav Petkov
2016-01-05 18:54 ` Toshi Kani [this message]
2016-01-07 12:38   ` [PATCH v3 07/17] kexec: " Dave Young
2016-01-05 18:54 ` [PATCH v3 08/17] xen, mm: " Toshi Kani
2016-01-05 18:54 ` [PATCH v3 09/17] drivers: Initialize resource entry to zero Toshi Kani
2016-01-05 20:57   ` Helge Deller
2016-01-05 18:54 ` [PATCH v3 10/17] resource: Change walk_system_ram to use System RAM type Toshi Kani
2016-01-05 18:54 ` [PATCH v3 11/17] arm/samsung: Change s3c_pm_run_res() " Toshi Kani
2016-01-05 18:54 ` [PATCH v3 12/17] memremap: Change region_intersects() to take @flags and @desc Toshi Kani
2016-01-05 18:54 ` [PATCH v3 13/17] resource: Add walk_iomem_res_desc() Toshi Kani
2016-01-05 18:54 ` [PATCH v3 14/17] x86,nvdimm,kexec: Use walk_iomem_res_desc() for iomem search Toshi Kani
2016-01-07 12:39   ` Dave Young
2016-01-05 18:54 ` [PATCH v3 15/17] x86/kexec: Remove walk_iomem_res() call with GART Toshi Kani
2016-01-07 12:37   ` Dave Young
2016-01-05 18:54 ` [PATCH v3 16/17] resource: Kill walk_iomem_res() Toshi Kani
2016-01-07 12:40   ` Dave Young
2016-01-05 18:54 ` [PATCH v3 17/17] ACPI/EINJ: Allow memory error injection to NVDIMM Toshi Kani

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