Commit Graph

47 Commits

Author SHA1 Message Date
David Daney 8ff8584e51 MIPS: Hook up process_vm_readv and process_vm_writev system calls.
Signed-off-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2918/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-09 00:07:56 +00:00
NeilBrown f5b9409973 All Arch: remove linkage for sys_nfsservctl system call
The nfsservctl system call is now gone, so we should remove all
linkage for it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-26 15:09:58 -07:00
Ralf Baechle b12acf163f MIPS: Wire up sendmmsg and renumber setns syscall.
Renumbering was necessary because I had already wired up setns(2) in the
linux-mips.org tree in commit c3fce54644cabbb90700cc3acc040718a377f609
[MIPS: Wire up new sendmmsg syscall.] but the same syscall numbers were
used by 7b21fddd08 [ns: Wire up the setns
system call] resulting in a conflict.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:10 +01:00
Eric W. Biederman 7b21fddd08 ns: Wire up the setns system call
32bit and 64bit on x86 are tested and working.  The rest I have looked
at closely and I can't find any problems.

setns is an easy system call to wire up.  It just takes two ints so I
don't expect any weird architecture porting problems.

While doing this I have noticed that we have some architectures that are
very slow to get new system calls.  cris seems to be the slowest where
the last system calls wired up were preadv and pwritev.  avr32 is weird
in that recvmmsg was wired up but never declared in unistd.h.  frv is
behind with perf_event_open being the last syscall wired up.  On h8300
the last system call wired up was epoll_wait.  On m32r the last system
call wired up was fallocate.  mn10300 has recvmmsg as the last system
call wired up.  The rest seem to at least have syncfs wired up which was
new in the 2.6.39.

v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com>
v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com>
v4: Moved wiring up of the system call to another patch
v5: ported to v2.6.39-rc6
v6: rebased onto parisc-next and net-next to avoid syscall  conflicts.
v7: ported to Linus's latest post 2.6.39 tree.

>  arch/blackfin/include/asm/unistd.h     |    3 ++-
>  arch/blackfin/mach-common/entry.S      |    1 +
Acked-by: Mike Frysinger <vapier@gentoo.org>

Oh - ia64 wiring looks good.
Acked-by: Tony Luck <tony.luck@intel.com>

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-28 10:48:39 -07:00
Ralf Baechle 8b659a3931 MIPS: Split do_syscall_trace into two functions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-05-19 09:55:44 +01:00
Ralf Baechle 8bdd51429d MIPS: Document former use of timerfd(2) syscall number.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-05-10 18:15:25 +01:00
Ralf Baechle 1bbf287561 MIPS: Wire up syncfs(2).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-25 18:45:20 +01:00
David Daney 84ed94323e MIPS: Hook up name_to_handle_at, open_by_handle_at and clock_adjtime syscalls.
These system calls we recently added.

32-bit ABIs need compat handling for sys_clock_adjtime().

o32 also needs compat handling for sys_open_by_handle_at();

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-25 18:45:20 +01:00
Linus Torvalds 547af560dd Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Enable ISA_DMA_API config to fix build failure
  MIPS: 32-bit: Fix build failure in asm/fcntl.h
  MIPS: Remove all generated vmlinuz* files on "make clean"
  MIPS: do_sigaltstack() expects userland pointers
  MIPS: Fix error values in case of bad_stack
  MIPS: Sanitize restart logics
  MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
  MIPS: Don't block signals if we'd failed to setup a sigframe
2010-10-18 13:10:36 -07:00
Al Viro 8f5a00eb42 MIPS: Sanitize restart logics
Put the original syscall number into ->regs[0] when we leave syscall
with error.  Use it in restart logics.  Everything else will have
it 0 since we pass through SAVE_SOME on all the ways in.  Note that
in places like bad_stack and inllegal_syscall we leave it 0 - it's not
restartable.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:02 +01:00
Ralf Baechle e080e6166a MIPS: Fix syscall 64 bit number comments.
Noticed and original patch by Philby John <pjohn@mvista.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-04 18:33:59 +01:00
David Daney 5e844b31c2 MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1553/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-04 18:33:59 +01:00
Arnaldo Carvalho de Melo a2e2725541 net: Introduce recvmmsg socket syscall
Meaning receive multiple messages, reducing the number of syscalls and
net stack entry/exit operations.

Next patches will introduce mechanisms where protocols that want to
optimize this operation will provide an unlocked_recvmsg operation.

This takes into account comments made by:

. Paul Moore: sock_recvmsg is called only for the first datagram,
  sock_recvmsg_nosec is used for the rest.

. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
  works in the same fashion as the ppoll one.

  If the underlying protocol returns a datagram with MSG_OOB set, this
  will make recvmmsg return right away with as many datagrams (+ the OOB
  one) it has received so far.

. Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
  datagrams and then recvmsg returns an error, recvmmsg will return
  the successfully received datagrams, store the error and return it
  in the next call.

This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
where we will be able to acquire the lock only at batch start and end, not at
every underlying recvmsg call.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:40:10 -07:00
Ingo Molnar cdd6c482c9 perf: Do the big rename: Performance Counters -> Performance Events
Bye-bye Performance Counters, welcome Performance Events!

In the past few months the perfcounters subsystem has grown out its
initial role of counting hardware events, and has become (and is
becoming) a much broader generic event enumeration, reporting, logging,
monitoring, analysis facility.

Naming its core object 'perf_counter' and naming the subsystem
'perfcounters' has become more and more of a misnomer. With pending
code like hw-breakpoints support the 'counter' name is less and
less appropriate.

All in one, we've decided to rename the subsystem to 'performance
events' and to propagate this rename through all fields, variables
and API names. (in an ABI compatible fashion)

The word 'event' is also a bit shorter than 'counter' - which makes
it slightly more convenient to write/handle as well.

Thanks goes to Stephane Eranian who first observed this misnomer and
suggested a rename.

User-space tooling and ABI compatibility is not affected - this patch
should be function-invariant. (Also, defconfigs were not touched to
keep the size down.)

This patch has been generated via the following script:

  FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')

  sed -i \
    -e 's/PERF_EVENT_/PERF_RECORD_/g' \
    -e 's/PERF_COUNTER/PERF_EVENT/g' \
    -e 's/perf_counter/perf_event/g' \
    -e 's/nb_counters/nb_events/g' \
    -e 's/swcounter/swevent/g' \
    -e 's/tpcounter_event/tp_event/g' \
    $FILES

  for N in $(find . -name perf_counter.[ch]); do
    M=$(echo $N | sed 's/perf_counter/perf_event/g')
    mv $N $M
  done

  FILES=$(find . -name perf_event.*)

  sed -i \
    -e 's/COUNTER_MASK/REG_MASK/g' \
    -e 's/COUNTER/EVENT/g' \
    -e 's/\<event\>/event_id/g' \
    -e 's/counter/event/g' \
    -e 's/Counter/Event/g' \
    $FILES

... to keep it as correct as possible. This script can also be
used by anyone who has pending perfcounters patches - it converts
a Linux kernel tree over to the new naming. We tried to time this
change to the point in time where the amount of pending patches
is the smallest: the end of the merge window.

Namespace clashes were fixed up in a preparatory patch - and some
stylistic fallout will be fixed up in a subsequent patch.

( NOTE: 'counters' are still the proper terminology when we deal
  with hardware registers - and these sed scripts are a bit
  over-eager in renaming them. I've undone some of that, but
  in case there's something left where 'counter' would be
  better than 'event' we can undo that on an individual basis
  instead of touching an otherwise nicely automated patch. )

Suggested-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-21 14:28:04 +02:00
Ralf Baechle f1e39a4a61 MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler
This way it doesn't have to use CONFIG_CPU_HAS_LLSC anymore.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Ralf Baechle 54822de779 MIPS: Wire up accept4 syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-08-03 17:52:50 +01:00
David Daney 69f16c9a86 MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.
[Ralf: I fixed up the numbering in the comment in scall64-n32.S.]

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03 15:45:24 +01:00
Ralf Baechle ddd9e91b71 preadv/pwritev: MIPS: Add preadv(2) and pwritev(2) syscalls.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <linux-api@vger.kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:05:08 -07:00
Ralf Baechle dbda6ac089 MIPS: CVE-2009-0029: Enable syscall wrappers.
Thanks to David Daney helping with debugging and testing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
2009-02-27 17:56:35 +00:00
Atsushi Nemoto bda8229bdd MIPS: Set positive error number to errno on illegal_syscall
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:26 +00:00
Ralf Baechle 3885b71ba6 [MIPS] Wire up new syscalls.
signalfd4, eventfd2, epoll_create1, dup3, pipe2 and inotify_init1.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-08-26 09:10:20 +01:00
Ralf Baechle 8213bbf9c1 [MIPS] Rename MIPS sys_pipe syscall entry point to something MIPS-specific.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-20 14:38:21 +01:00
Dmitri Vorobiev 6783fe6253 [MIPS] Wire up the timerfd_*() o32 system calls
This patch enables the system calls timerfd_create(), timerfd_settime()
and timerfd_gettime() for MIPS architecture.

Please see the following Bugzilla entry for more details:

http://bugzilla.kernel.org/show_bug.cgi?id=10038

This was tested using a Malta 4Kc board in both little-endian and
big-endian modes. The unit test program is available from the URL
above.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>

[Ralf: Added N64, N32 and O32 bits on 64-bit kernels.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Davide Libenzi 4d672e7ac7 timerfd: new timerfd API
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 <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:07 -08:00
Ralf Baechle 4dc467756e [MIPS] Wire up the fallocate syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:22 +01:00
Atsushi Nemoto 7a6d4f3874 [MIPS] Wire up utimensat, signalfd, timerfd, eventfd
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-11 18:20:53 +01:00
Ralf Baechle 08253b39f8 [MIPS] Wire up ioprio_set and ioprio_get.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:18 +00:00
Ralf Baechle e016c38d18 [MIPS] Fix foobar in wiring up compat_sys_epoll_pwait syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-26 23:06:06 +00:00
Ralf Baechle 431dc80403 [MIPS] Fix sigset_t endianess swapping issues in 32-bit compat code.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13 22:40:51 +00:00
Nicolas Schichan 583bb86fbb [MIPS] Add support for kexec
A tiny userland application loading the kernel and invoking kexec_load for 
mips is available here:

http://chac.le-poulpe.net/~nico/kexec/kexec-2006-10-18.tar.gz

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-30 01:14:44 +00:00
Ralf Baechle 991ea26dcb [MIPS] Wire up getcpu(2) and epoll_wait(2) syscalls.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-30 21:41:28 +00:00
Ralf Baechle d2bcf87d0f [MIPS] Reserve syscall numbers for kexec_load.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19 17:55:14 +01:00
Atsushi Nemoto eae6c0da9d [MIPS] lockdep: fix TRACE_IRQFLAGS_SUPPORT
In handle_sys and its variants, we must reload some registers which
might be clobbered by trace_hardirqs_on().
Also we must make sure trace_hardirqs_on() called in kernel level (not
exception level).

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01 23:16:57 +01:00
Atsushi Nemoto 7fdeb04814 [MIPS] Wire up set_robust_list(2) and get_robust_list(2)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27 13:37:40 +01:00
Ralf Baechle 192ef36619 [MIPS] TRACE_IRQFLAGS_SUPPORT support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-07-13 21:26:09 +01:00
Ralf Baechle 722cfd9042 [MIPS] Wire up vmsplice(2) and move_pages(2).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-07-13 21:25:59 +01:00
Jörn Engel 6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Ralf Baechle 136d47d3e1 [MIPS] Wire up tee(2).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-29 21:10:47 +01:00
Ralf Baechle a8d587a71b [MIPS] Wire up sync_file_range(2).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:14 +02:00
Ralf Baechle f115da9cd6 [MIPS] Wire splice syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle 72bf891421 [MIPS] Wire up new syscalls.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---
2006-02-08 17:52:25 +00:00
Ralf Baechle 04a7052c83 [MIPS] Fix register handling in syscalls when debugging.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-12-01 11:05:17 +00:00
Ralf Baechle edcb98d1db [MIPS] Fix return path of sysmips(MIPS_ATOMIC_SET, ...)
The way we were doing things does no longer work on 2.6.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-12-01 11:05:15 +00:00
Ralf Baechle 7db36c858c Add inotify syscalls for MIPS.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:31:47 +01:00
Ralf Baechle 3c37026d43 NPTL, round one.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:31:06 +01:00
Sam Ravnborg 048eb582f3 kbuild: mips use generic asm-offsets.h support
Removed obsolete stuff from arch makefile.
mips had a special rule for generating asm-offsets.h so preserved it
using an architecture specific hook in top-level Kbuild file.
Renamed .h file to asm-offsets.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-09 22:32:31 +02:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00