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| author | Nathan Fontenot <nfont@austin.ibm.com> | 2011-01-31 10:55:23 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-03 16:08:58 -0800 |
| commit | 6add7cd618b4d4dc525731beb539c5e06e891855 (patch) | |
| tree | 624d7f27f6d869468d3355b31f27f2b2a00ad83e /drivers/base | |
| parent | 1dc41aa6d6172d61c10638d11933a3595a41d51a (diff) | |
| download | linux-6add7cd618b4d4dc525731beb539c5e06e891855.tar.gz | |
memory hotplug: sysfs probe routine should add all memory sections
As a follow-on to the recent patches I submitted that allowed for a sysfs memory block to span multiple memory sections, we should also update the probe routine to online all of the memory sections in a memory block. Without this patch the current code will only add a single memory section. I think the probe routine should add all of the memory sections in the specified memory block so that its behavior is in line with memory hotplug actions through the sysfs interfaces. This patch applies on top of the previous sysfs memory updates to allow a sysfs directory o span multiple memory sections. https://lkml.org/lkml/2011/1/20/245 Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/memory.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 71b4a32b1710..3da6a43b7756 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -387,12 +387,19 @@ memory_probe_store(struct class *class, struct class_attribute *attr, { u64 phys_addr; int nid; - int ret; + int i, ret; phys_addr = simple_strtoull(buf, NULL, 0); - nid = memory_add_physaddr_to_nid(phys_addr); - ret = add_memory(nid, phys_addr, PAGES_PER_SECTION << PAGE_SHIFT); + for (i = 0; i < sections_per_block; i++) { + nid = memory_add_physaddr_to_nid(phys_addr); + ret = add_memory(nid, phys_addr, + PAGES_PER_SECTION << PAGE_SHIFT); + if (ret) + break; + + phys_addr += MIN_MEMORY_BLOCK_SIZE; + } if (ret) count = ret; |