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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-05-19 20:49:08 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-05-19 20:49:08 +0100 |
| commit | 79e06e9be3c163235f8c388c8f831d72ca015b10 (patch) | |
| tree | bed09e5611c7aa4b0a198ffd35e9161d4f2f1114 | |
| parent | cacf1225882164fd78fa6d8060a7f7468bdf32fa (diff) | |
| download | xen-79e06e9be3c163235f8c388c8f831d72ca015b10.tar.gz xen-79e06e9be3c163235f8c388c8f831d72ca015b10.tar.bz2 xen-79e06e9be3c163235f8c388c8f831d72ca015b10.zip | |
kexec: Fix dodgy use of cpu_present_map protecting percpu data access.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
xen-unstable changeset: 21432:f71b641aa327
xen-unstable date: Wed May 19 18:38:19 2010 +0100
| -rw-r--r-- | xen/common/kexec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/common/kexec.c b/xen/common/kexec.c index 56196167b8..c8cf1ac33d 100644 --- a/xen/common/kexec.c +++ b/xen/common/kexec.c @@ -177,7 +177,7 @@ static int kexec_get_cpu(xen_kexec_range_t *range) int nr = range->nr; int nr_bytes = 0; - if ( nr < 0 || nr >= num_present_cpus() ) + if ( nr < 0 || nr >= NR_CPUS || !cpu_present(nr) ) return -EINVAL; nr_bytes += sizeof_note("CORE", sizeof(ELF_Prstatus)); |