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authorToshi Kani <[email protected]>2016-01-26 21:57:23 +0100
committerIngo Molnar <[email protected]>2016-01-30 09:49:57 +0100
commit1a085d0727afaedb9506f04798516298b1676e11 (patch)
treeba75168aa705c5b4f918f79f34c51e14181b242c
parent35d98e93fe6a7ab612f6b389ce42c1dc135d6eef (diff)
kexec: Set IORESOURCE_SYSTEM_RAM for System RAM
Set proper ioresource flags and types for crash kernel reservation areas. Signed-off-by: Toshi Kani <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Dave Young <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Baoquan He <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: HATAYAMA Daisuke <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Luis R. Rodriguez <[email protected]> Cc: Minfei Huang <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Toshi Kani <[email protected]> Cc: Vivek Goyal <[email protected]> Cc: [email protected] Cc: [email protected] Cc: linux-mm <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--kernel/kexec_core.c8
-rw-r--r--kernel/kexec_file.c2
2 files changed, 6 insertions, 4 deletions
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 8dc659144869..8d34308ea449 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)
@@ -959,7 +961,7 @@ 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 007b791f676d..2bfcdc064116 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -525,7 +525,7 @@ 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