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| author | Uri Lublin <uril@qumranet.com> | 2007-02-22 16:43:09 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-03-04 11:12:42 +0200 |
| commit | cd1a4a982a78e793125db2f386e91dc7c89c9ed1 (patch) | |
| tree | 7e5e9dd9534feed9ecc83c147e2f6166a6edbc48 | |
| parent | ab51a434c5816e1ca3f033791c1cc5c6594998ec (diff) | |
| download | linux-cd1a4a982a78e793125db2f386e91dc7c89c9ed1.tar.bz2 | |
KVM: Fix dirty page log bitmap size/access calculation
Since dirty_bitmap is an unsigned long array, the alignment and size need
to take that into account.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | drivers/kvm/kvm_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index edff4055b32b..e7108105c50b 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -792,9 +792,9 @@ static int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, if (!memslot->dirty_bitmap) goto out; - n = ALIGN(memslot->npages, 8) / 8; + n = ALIGN(memslot->npages, BITS_PER_LONG) / 8; - for (i = 0; !any && i < n; ++i) + for (i = 0; !any && i < n/sizeof(long); ++i) any = memslot->dirty_bitmap[i]; r = -EFAULT; |