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| author | Eric W. Biederman <ebiederm@xmission.com> | 2005-09-06 15:16:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-07 16:57:16 -0700 |
| commit | 48c8b1134249432318c8e5d19adc37c45242c4b1 (patch) | |
| tree | c8ecc8563a1fc19b6909c8d709175792f618e856 /arch | |
| parent | a888cebe17e39476e5ca18c3a4bd96c6775070db (diff) | |
| download | op-kernel-dev-48c8b1134249432318c8e5d19adc37c45242c4b1.zip op-kernel-dev-48c8b1134249432318c8e5d19adc37c45242c4b1.tar.gz | |
[PATCH] x86_64: Fix off by one in e820_mapped
This allows a valid iommu placed immediately after memory to work, to be
recognized as after the last byte of memory and not overlapping it.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/kernel/e820.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index b548dea..116ac5f 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -85,7 +85,7 @@ int __init e820_mapped(unsigned long start, unsigned long end, unsigned type) struct e820entry *ei = &e820.map[i]; if (type && ei->type != type) continue; - if (ei->addr >= end || ei->addr + ei->size < start) + if (ei->addr >= end || ei->addr + ei->size <= start) continue; return 1; } |
