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| author | Yasunori Goto <y-goto@jp.fujitsu.com> | 2007-11-14 16:59:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-11-14 18:45:39 -0800 |
| commit | 887c3cb18865a4f9e0786e5a5b3ef47ff469b956 (patch) | |
| tree | 553024b7cfb9c06e71aafefc218165ecc015bd10 /mm/memory_hotplug.c | |
| parent | 5fce25a9df4865bdd5e3dc4853b269dc1677a02a (diff) | |
| download | linux-887c3cb18865a4f9e0786e5a5b3ef47ff469b956.tar.gz linux-887c3cb18865a4f9e0786e5a5b3ef47ff469b956.tar.bz2 linux-887c3cb18865a4f9e0786e5a5b3ef47ff469b956.zip | |
Add IORESOUCE_BUSY flag for System RAM
i386 and x86-64 registers System RAM as IORESOURCE_MEM | IORESOURCE_BUSY.
But ia64 registers it as IORESOURCE_MEM only.
In addition, memory hotplug code registers new memory as IORESOURCE_MEM too.
This difference causes a failure of memory unplug of x86-64. This patch
fixes it.
This patch adds IORESOURCE_BUSY to avoid potential overlap mapping by PCI
device.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Luck, Tony" <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 987abe6375ed..9512a544d044 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -39,7 +39,7 @@ static struct resource *register_memory_resource(u64 start, u64 size) res->name = "System RAM"; res->start = start; res->end = start + size - 1; - res->flags = IORESOURCE_MEM; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; if (request_resource(&iomem_resource, res) < 0) { printk("System RAM resource %llx - %llx cannot be added\n", (unsigned long long)res->start, (unsigned long long)res->end); |