On Tue, 13 Feb 2007 08:43:05 -0600 James Bottomley <[EMAIL PROTECTED]> wrote:
>
> Not for parisc at the instruction level. In narrow mode (32 bit mode),
> a u64 load has to be done by two 32 bit loads which gives it a 4 byte
> alignment requirement. In wide mode (64 bit mode) the 64 bit load
>
On Tue, 2007-02-13 at 15:35 +1100, Stephen Rothwell wrote:
> OK, I have thought about this some more and I *think* the only
> architecture that needs compat_sys_epoll_ctl or compat_sys_epoll_wait is
> ia64 where the 64 bit version of struct epoll_event is different from the
> 32 bit version. On
On Mon, 12 Feb 2007 23:26:42 -0800 (PST) Davide Libenzi
wrote:
>
> ARM-OABI also defines them, dunno why. Rmk?
I suspect that OABI stands for old ABI and the alignment of 64 bit
quantities changed at some point. I am pretty sure that arm is only
32bit, but I assume that they need backward
On Mon, 12 Feb 2007 23:26:42 -0800 (PST) Davide Libenzi
davidel@xmailserver.org wrote:
ARM-OABI also defines them, dunno why. Rmk?
I suspect that OABI stands for old ABI and the alignment of 64 bit
quantities changed at some point. I am pretty sure that arm is only
32bit, but I assume that
On Tue, 2007-02-13 at 15:35 +1100, Stephen Rothwell wrote:
OK, I have thought about this some more and I *think* the only
architecture that needs compat_sys_epoll_ctl or compat_sys_epoll_wait is
ia64 where the 64 bit version of struct epoll_event is different from the
32 bit version. On
On Tue, 13 Feb 2007 08:43:05 -0600 James Bottomley [EMAIL PROTECTED] wrote:
Not for parisc at the instruction level. In narrow mode (32 bit mode),
a u64 load has to be done by two 32 bit loads which gives it a 4 byte
alignment requirement. In wide mode (64 bit mode) the 64 bit load
On Tue, 13 Feb 2007, Stephen Rothwell wrote:
> A better way here might be to have each 64 bit architecture define
> compat_epoll_event in its asm/compat.h and then you can just use:
>
> if (copy_from_user(, event, sizeof(user)))
> return -EFAULT;
> kernel =
Hi Davide,
[Linux-arch readers can skip to the last few paragraphs ...]
Just a couple of nits to start:
On Sun, 11 Feb 2007 16:24:30 -0800 (PST) Davide Libenzi
wrote:
>
> diff -Nru linux-2.6.20/fs/eventpoll.c linux-2.6.20.mod/fs/eventpoll.c
> --- linux-2.6.20/fs/eventpoll.c 2007-02-04
Hi Davide,
[Linux-arch readers can skip to the last few paragraphs ...]
Just a couple of nits to start:
On Sun, 11 Feb 2007 16:24:30 -0800 (PST) Davide Libenzi
davidel@xmailserver.org wrote:
diff -Nru linux-2.6.20/fs/eventpoll.c linux-2.6.20.mod/fs/eventpoll.c
---
On Tue, 13 Feb 2007, Stephen Rothwell wrote:
A better way here might be to have each 64 bit architecture define
compat_epoll_event in its asm/compat.h and then you can just use:
if (copy_from_user(user, event, sizeof(user)))
return -EFAULT;
kernel =
Add epoll compat_ code to kernel/compat.c. IA64 and ARM-OABI are currently
using their own version of epoll compat_ code and they could probably wire
to the new common code.
Unfortunately, sys_epoll_pwait needs two compat versions, one for sigset_t
only, and one for sigset_t+epoll_event.
Add epoll compat_ code to kernel/compat.c. IA64 and ARM-OABI are currently
using their own version of epoll compat_ code and they could probably wire
to the new common code.
Unfortunately, sys_epoll_pwait needs two compat versions, one for sigset_t
only, and one for sigset_t+epoll_event.
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