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author | Wanpeng Li <liwanp@linux.vnet.ibm.com> | 2013-07-03 15:02:40 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-04 16:26:07 +0800 |
commit | 19d22ea89933ca48bcb10fc7919ed7bbefd52362 (patch) | |
tree | b47da3af5d3566935e77ee3975e3bd93d515a926 /include/linux/i2c-tegra.h | |
parent | 40a017c96a98a29c9d39bf0ca34651288984e9ce (diff) | |
download | linux-3.10-19d22ea89933ca48bcb10fc7919ed7bbefd52362.tar.gz linux-3.10-19d22ea89933ca48bcb10fc7919ed7bbefd52362.tar.bz2 linux-3.10-19d22ea89933ca48bcb10fc7919ed7bbefd52362.zip |
mm/memory-hotplug: fix lowmem count overflow when offline pages
commit cea27eb2a202959783f81254c48c250ddd80e129 upstream.
The logic for the memory-remove code fails to correctly account the
Total High Memory when a memory block which contains High Memory is
offlined as shown in the example below. The following patch fixes it.
Before logic memory remove:
MemTotal: 7603740 kB
MemFree: 6329612 kB
Buffers: 94352 kB
Cached: 872008 kB
SwapCached: 0 kB
Active: 626932 kB
Inactive: 519216 kB
Active(anon): 180776 kB
Inactive(anon): 222944 kB
Active(file): 446156 kB
Inactive(file): 296272 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 7294672 kB
HighFree: 5704696 kB
LowTotal: 309068 kB
LowFree: 624916 kB
After logic memory remove:
MemTotal: 7079452 kB
MemFree: 5805976 kB
Buffers: 94372 kB
Cached: 872000 kB
SwapCached: 0 kB
Active: 626936 kB
Inactive: 519236 kB
Active(anon): 180780 kB
Inactive(anon): 222944 kB
Active(file): 446156 kB
Inactive(file): 296292 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 7294672 kB
HighFree: 5181024 kB
LowTotal: 4294752076 kB
LowFree: 624952 kB
[mhocko@suse.cz: fix CONFIG_HIGHMEM=n build]
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org> [2.6.24+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Zhouping Liu <zliu@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/i2c-tegra.h')
0 files changed, 0 insertions, 0 deletions