On 22.08.2013, at 12:37, Aneesh Kumar K.V wrote:
> From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Isn't this you?
>
> We should be able to copy upto count bytes
Why?
Alex
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> ---
> arch/powerpc/kvm/book3s_64_mmu_hv.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
> index 710d313..0ae6bb6 100644
> --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
> +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
> @@ -1362,7 +1362,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
> lbuf = (unsigned long __user *)buf;
>
> nb = 0;
> - while (nb + sizeof(hdr) + HPTE_SIZE < count) {
> + while (nb + sizeof(hdr) + HPTE_SIZE <= count) {
> /* Initialize header */
> hptr = (struct kvm_get_htab_header __user *)buf;
> hdr.n_valid = 0;
> @@ -1385,7 +1385,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
> /* Grab a series of valid entries */
> while (i < kvm->arch.hpt_npte &&
> hdr.n_valid < 0xffff &&
> - nb + HPTE_SIZE < count &&
> + nb + HPTE_SIZE <= count &&
> record_hpte(flags, hptp, hpte, revp, 1, first_pass)) {
> /* valid entry, write it out */
> ++hdr.n_valid;
> --
> 1.8.1.2
>
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