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23 October 2021, 00:29:24 UTC
Revision ea0854170c95245a258b386c7a9314399c949fe0 authored by Shaohui Zheng on 02 February 2010, 21:44:16 UTC, committed by Linus Torvalds on 03 February 2010, 02:11:23 UTC 
memory hotplug: fix a bug on /dev/mem for 64-bit kernels
 
Newly added memory can not be accessed via /dev/mem, because we do not
update the variables high_memory, max_pfn and max_low_pfn.

Add a function update_end_of_memory_vars() to update these variables for
64-bit kernels.

[akpm@linux-foundation.org: simplify comment]
Signed-off-by: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Li Haicheng <haicheng.li@intel.com>
Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent a225a5c
History
Tip revision: ea0854170c95245a258b386c7a9314399c949fe0 authored by Shaohui Zheng on 02 February 2010, 21:44:16 UTC
memory hotplug: fix a bug on /dev/mem for 64-bit kernels
Tip revision: ea08541
File Mode Size
Makefile -rw-r--r-- 384 bytes
compat.c -rw-r--r-- 17.0 KB
compat_mq.c -rw-r--r-- 4.0 KB
ipc_sysctl.c -rw-r--r-- 5.1 KB
ipcns_notifier.c -rw-r--r-- 2.2 KB
mq_sysctl.c -rw-r--r-- 2.7 KB
mqueue.c -rw-r--r-- 30.6 KB
msg.c -rw-r--r-- 20.9 KB
msgutil.c -rw-r--r-- 2.8 KB
namespace.c -rw-r--r-- 3.3 KB
sem.c -rw-r--r-- 35.8 KB
shm.c -rw-r--r-- 25.9 KB
util.c -rw-r--r-- 22.9 KB
util.h -rw-r--r-- 5.2 KB
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