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Re: [Qemu-devel] [PATCH] Add mincore syscall
From: |
Kirill A. Shutemov |
Subject: |
Re: [Qemu-devel] [PATCH] Add mincore syscall |
Date: |
Fri, 19 Sep 2008 17:06:45 +0300 |
User-agent: |
Mutt/1.5.18 (2008-05-29) |
On Fri, Sep 19, 2008 at 04:33:18PM +0300, Riku Voipio wrote:
>
> Signed-off-by: Riku Voipio <address@hidden>
> ---
> linux-user/syscall.c | 14 +++++++++++++-
> 1 files changed, 13 insertions(+), 1 deletions(-)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 8e6e735..cb75c94 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -5574,7 +5574,19 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
> arg1,
> goto unimplemented;
> #ifdef TARGET_NR_mincore
> case TARGET_NR_mincore:
> - goto unimplemented;
> + {
> + void *a;
> + ret = -TARGET_EFAULT;
> + if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
> + goto efault;
> + if (!(p = lock_user_string(arg3)))
> + goto mincore_fail;
> + ret = get_errno(mincore(a, arg2, p));
> + unlock_user(p, arg3, ret);
> + mincore_fail:
> + unlock_user(a, arg1, 0);
> + }
> + break;
> #endif
> #ifdef TARGET_NR_fadvise64_64
> case TARGET_NR_fadvise64_64:
Looks good for me. Added to my patchset.
--
Regards, Kirill A. Shutemov
+ Belarus, Minsk
+ ALT Linux Team, http://www.altlinux.com/
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