linux-toradex.git/include/linux/compat.h, branch v2.6.25-rc2

fs: remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbol

2008-02-06T18:41:03+00:00

Remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbol.

Signed-off-by: Jiri Olsa 
Cc: Davide Libenzi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

timerfd: new timerfd API

2008-02-05T17:44:07+00:00

This is the new timerfd API as it is implemented by the following patch:

int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
		    const struct itimerspec *utmr,
		    struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);

The timerfd_create() API creates an un-programmed timerfd fd.  The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.

The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).

The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter.  Otherwise it's a relative time.

The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.

Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface).  Here's a simple test program I used to
exercise the new timerfd APIs:

http://www.xmailserver.org/timerfd-test2.c

[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi 
Cc: Michael Kerrisk 
Cc: Thomas Gleixner 
Cc: Davide Libenzi 
Cc: Michael Kerrisk 
Cc: Martin Schwidefsky 
Signed-off-by: Heiko Carstens 
Cc: Michael Kerrisk 
Cc: Davide Libenzi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

x86: compat_sys_ptrace

2008-01-30T12:31:48+00:00

This adds a generic definition of compat_sys_ptrace that calls
compat_arch_ptrace, parallel to sys_ptrace/arch_ptrace.  Some
machines needing this already define a function by that name.
The new generic function is defined only on machines that
put #define __ARCH_WANT_COMPAT_SYS_PTRACE into asm/ptrace.h.

Signed-off-by: Roland McGrath 
Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner

x86: compat_ptrace_request

2008-01-30T12:31:47+00:00

This adds a compat_ptrace_request that is the analogue of ptrace_request
for the things that 32-on-64 ptrace implementations can share in common.
So far there are just a couple of requests handled generically.

Signed-off-by: Roland McGrath 
Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner

x86: clean up arch/x86/ia32/sys_ia32.c

2008-01-30T12:30:08+00:00

White space and coding style clenaup.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar

Declare another couple of compat syscalls.

2007-05-14T19:16:01+00:00

compat_sys_signalfd and compat_sys_timerfd need declarations before
PowerPC can wire them up.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Linus Torvalds

signal/timer/event: timerfd compat code

2007-05-11T15:29:36+00:00

This patch implements the necessary compat code for the timerfd system call.

Signed-off-by: Davide Libenzi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Declare {compat_}sys_utimensat

2007-05-09T19:30:44+00:00

This is needed before Powerpc can wire up the syscall.

Signed-off-by: Stephen Rothwell 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Add epoll compat_ code to fs/compat.c

2007-03-08T15:38:22+00:00

IA64 and ARM-OABI are currently using their own version of epoll compat_
code.

An architecture needs epoll_event translation if alignof(u64) in 32 bit
mode is different from alignof(u64) in 64 bit mode.  If an architecture
needs epoll_event translation, it must define struct compat_epoll_event in
asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use
compat_sys_epoll_ctl and compat_sys_epoll_wait.

All 64 bit architecture should use compat_sys_epoll_pwait.

[sfr: restructure and move to fs/compat.c, remove MIPS version
of compat_sys_epoll_pwait, use __put_user_unaligned]

Signed-off-by: Stephen Rothwell 
Cc: David Woodhouse 
Cc: Russell King 
Cc: "Luck, Tony" 
Cc: "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Create compat_sys_migrate_pages

2006-11-03T20:27:59+00:00

This is needed on bigendian 64bit architectures.

Signed-off-by: Stephen Rothwell 
Acked-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds