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| author | Yinghai Lu | 2008-03-19 00:44:19 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2008-03-21 17:06:15 +0100 |
| commit | 5dca6a1bb014875a17289fdaae8c31e0a3641c99 (patch) | |
| tree | c6cb1eab44e92cedbfcee707de6ed2ad960e20e6 /arch/x86/kernel/cpu/mtrr | |
| parent | x86: fix reboot problem with Dell Optiplex 745, 0KW626 board (diff) | |
| download | kernel-qcow2-linux-5dca6a1bb014875a17289fdaae8c31e0a3641c99.tar.gz kernel-qcow2-linux-5dca6a1bb014875a17289fdaae8c31e0a3641c99.tar.xz kernel-qcow2-linux-5dca6a1bb014875a17289fdaae8c31e0a3641c99.zip | |
x86: trim mtrr don't close gap for resource allocation.
fix the bug reported here:
http://bugzilla.kernel.org/show_bug.cgi?id=10232
use update_memory_range() instead of add_memory_range() directly
to avoid closing the gap.
( the new code only affects and runs on systems where the MTRR
workaround triggers. )
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/mtrr')
| -rw-r--r-- | arch/x86/kernel/cpu/mtrr/main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index be83336fddba..a6450b3ae759 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -711,7 +711,8 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn) trim_size = end_pfn; trim_size <<= PAGE_SHIFT; trim_size -= trim_start; - add_memory_region(trim_start, trim_size, E820_RESERVED); + update_memory_range(trim_start, trim_size, E820_RAM, + E820_RESERVED); update_e820(); return 1; } |