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* sparc: Write up preadv2/pwritev2 syscalls.David S. Miller2016-03-291-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up copy_file_range syscall.David S. Miller2016-01-211-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Wire up mlock2 system call.David S. Miller2015-12-311-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Add all necessary direct socket system calls.David S. Miller2015-12-311-8/+10
| | | | | | | | The GLIBC folks would like to eliminate socketcall support eventually, and this makes sense regardless so wire them all up. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up userfaultfd system callMike Kravetz2015-12-231-2/+2
| | | | | | | | After hooking up system call, userfaultfd selftest was successful for both 32 and 64 bit version of test. Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc/sparc64: allocate sys_membarrier system call numberMathieu Desnoyers2015-11-091-2/+2
| | | | | | | Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sparc: hook up execveat system callDavid Drysdale2014-12-131-0/+2
| | | | | | | | Signed-off-by: David Drysdale <drysdale@google.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sparc: Hook up bpf system call.David S. Miller2014-10-281-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up memfd_create system call.David S. Miller2014-08-131-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up seccomp and getrandom system calls.David S. Miller2014-08-061-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up renameat2 syscall.David S. Miller2014-07-211-0/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up sched_setattr and sched_getattr syscalls.David S. Miller2014-01-291-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINEAl Viro2013-05-091-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* consolidate compat lookup_dcookie()Al Viro2013-03-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* convert vmsplice to COMPAT_SYSCALL_DEFINEAl Viro2013-03-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch getrusage() to COMPAT_SYSCALL_DEFINEAl Viro2013-03-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* convert sendfile{,64} to COMPAT_SYSCALL_DEFINEAl Viro2013-03-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fix compat truncate/ftruncateAl Viro2013-02-251-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch lseek to COMPAT_SYSCALL_DEFINEAl Viro2013-02-241-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* lseek() and truncate() on sparc really need sign extensionAl Viro2013-02-241-2/+2
| | | | | | | | | ftruncate() doesn't - it's declared with size as unsigned long, but truncate() and lseek() have that argument as signed long. IOW, these two really need sign extension + branch to native syscall; argument validation in sys_... does *not* suffice. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINEAl Viro2013-02-031-8/+8
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sparc: kill sign-extending wrappers for native syscallsAl Viro2013-02-031-40/+40
| | | | | | | SYSCALL_DEFINE-added wrapper will take care of those just fine; no extra compat wrappers needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sparc: switch to generic compat rt_sigpending()Al Viro2013-02-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sparc: switch to generic sigaltstackAl Viro2013-02-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sparc: Hook up finit_module syscall.David S. Miller2012-12-281-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-12-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull big execve/kernel_thread/fork unification series from Al Viro: "All architectures are converted to new model. Quite a bit of that stuff is actually shared with architecture trees; in such cases it's literally shared branch pulled by both, not a cherry-pick. A lot of ugliness and black magic is gone (-3KLoC total in this one): - kernel_thread()/kernel_execve()/sys_execve() redesign. We don't do syscalls from kernel anymore for either kernel_thread() or kernel_execve(): kernel_thread() is essentially clone(2) with callback run before we return to userland, the callbacks either never return or do successful do_execve() before returning. kernel_execve() is a wrapper for do_execve() - it doesn't need to do transition to user mode anymore. As a result kernel_thread() and kernel_execve() are arch-independent now - they live in kernel/fork.c and fs/exec.c resp. sys_execve() is also in fs/exec.c and it's completely architecture-independent. - daemonize() is gone, along with its parts in fs/*.c - struct pt_regs * is no longer passed to do_fork/copy_process/ copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump. - sys_fork()/sys_vfork()/sys_clone() unified; some architectures still need wrappers (ones with callee-saved registers not saved in pt_regs on syscall entry), but the main part of those suckers is in kernel/fork.c now." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits) do_coredump(): get rid of pt_regs argument print_fatal_signal(): get rid of pt_regs argument ptrace_signal(): get rid of unused arguments get rid of ptrace_signal_deliver() arguments new helper: signal_pt_regs() unify default ptrace_signal_deliver flagday: kill pt_regs argument of do_fork() death to idle_regs() don't pass regs to copy_process() flagday: don't pass regs to copy_thread() bfin: switch to generic vfork, get rid of pointless wrappers xtensa: switch to generic clone() openrisc: switch to use of generic fork and clone unicore32: switch to generic clone(2) score: switch to generic fork/vfork/clone c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone() take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h mn10300: switch to generic fork/vfork/clone h8300: switch to generic fork/vfork/clone tile: switch to generic clone() ... Conflicts: arch/microblaze/include/asm/Kbuild
| * Merge branch 'arch-microblaze' into no-rebasesAl Viro2012-11-161-2/+2
| |\
| * \ Merge commit '517ffce4e1a03aea979fe3a18a3dd1761a24fafb' into arch-sparcAl Viro2012-11-161-0/+2
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backmerge from the point in mainline where a trivial conflict had been introduced (arch/sparc/kernel/sys_sparc_64.c had grown sys_kern_features() right after where kernel_execve() used to be) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | sparc64: convert to generic execveAl Viro2012-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We still have wrappers, but nowhere near as scary as they used to be. I'm not sure how necessary that flushw is now, TBH... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | sparc64: exit_group should kill register windows just like plain exit.David S. Miller2012-12-031-1/+1
| |_|/ |/| | | | | | | | | | | Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc: Wire up sys_kcmp.David S. Miller2012-10-281-2/+2
| |/ |/| | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.David S. Miller2012-10-261-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Montgomery Multiply, Montgomery Square, and Multiple-Precision Multiply instructions work by loading a combination of the floating point and multiple register windows worth of integer registers with the inputs. These values are 64-bit. But for 32-bit userland processes we only save the low 32-bits of each integer register during a register spill. This is because the register window save area is in the user stack and has a fixed layout. Therefore, the only way to use these instruction in 32-bit mode is to perform the following sequence: 1) Load the top-32bits of a choosen integer register with a sentinel, say "-1". This will be in the outer-most register window. The idea is that we're trying to see if the outer-most register window gets spilled, and thus the 64-bit values were truncated. 2) Load all the inputs for the montmul/montsqr/mpmul instruction, down to the inner-most register window. 3) Execute the opcode. 4) Traverse back up to the outer-most register window. 5) Check the sentinel, if it's still "-1" store the results. Otherwise retry the entire sequence. This retry is extremely troublesome. If you're just unlucky and an interrupt or other trap happens, it'll push that outer-most window to the stack and clear the sentinel when we restore it. We could retry forever and never make forward progress if interrupts arrive at a fast enough rate (consider perf events as one example). So we have do limited retries and fallback to software which is extremely non-deterministic. Luckily it's very straightforward to provide a mechanism to let 32-bit applications use a 64-bit stack. Stacks in 64-bit mode are biased by 2047 bytes, which means that the lowest bit is set in the actual %sp register value. So if we see bit zero set in a 32-bit application's stack we treat it like a 64-bit stack. Runtime detection of such a facility is tricky, and cumbersome at best. For example, just trying to use a biased stack and seeing if it works is hard to recover from (the signal handler will need to use an alt stack, plus something along the lines of longjmp). Therefore, we add a system call to report a bitmask of arch specific features like this in a cheap and less hairy way. With help from Andy Polyakov. Signed-off-by: David S. Miller <davem@davemloft.net>
* KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compatDavid Howells2012-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | Use the 32-bit compat keyctl() syscall wrapper on Sparc64 for Sparc32 binary compatibility. Without this, keyctl(KEYCTL_INSTANTIATE_IOV) is liable to malfunction as it uses an iovec array read from userspace - though the kernel should survive this as it checks pointers and sizes anyway. I think all the other keyctl() function should just work, provided (a) the top 32-bits of each 64-bit argument register are cleared prior to invoking the syscall routine, and the 32-bit address space is right at the 0-end of the 64-bit address space. Most of the arguments are 32-bit anyway, and so for those clearing is not required. Signed-off-by: David Howells <dhowells@redhat.com cc: "David S. Miller" <davem@davemloft.net> cc: sparclinux@vger.kernel.org cc: stable@vger.kernel.org
* sparc: Hook up process_vm_{readv,writev} syscalls.David S. Miller2011-11-011-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Remove another reference to nfsservctlStephen Rothwell2011-08-291-1/+1
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* All Arch: remove linkage for sys_nfsservctl system callNeilBrown2011-08-261-1/+1
| | | | | | | | | 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>
* ns: Wire up the setns system callEric W. Biederman2011-05-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* net: Add sendmmsg socket system callAnton Blanchard2011-05-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a multiple message send syscall and is the send version of the existing recvmmsg syscall. This is heavily based on the patch by Arnaldo that added recvmmsg. I wrote a microbenchmark to test the performance gains of using this new syscall: http://ozlabs.org/~anton/junkcode/sendmmsg_test.c The test was run on a ppc64 box with a 10 Gbit network card. The benchmark can send both UDP and RAW ethernet packets. 64B UDP batch pkts/sec 1 804570 2 872800 (+ 8 %) 4 916556 (+14 %) 8 939712 (+17 %) 16 952688 (+18 %) 32 956448 (+19 %) 64 964800 (+20 %) 64B raw socket batch pkts/sec 1 1201449 2 1350028 (+12 %) 4 1461416 (+22 %) 8 1513080 (+26 %) 16 1541216 (+28 %) 32 1553440 (+29 %) 64 1557888 (+30 %) We see a 20% improvement in throughput on UDP send and 30% on raw socket send. [ Add sparc syscall entries. -DaveM ] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up syncfs system call.David S. Miller2011-03-291-0/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Add {open_by,name_to}_handle_at and clock_adjtime syscalls.David S. Miller2011-03-181-2/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Hook up new fanotify and prlimit64 syscalls.David S. Miller2010-08-161-2/+4
| | | | | | | | The only tricky bit is the compat version of fanotify_mark, which which on 32-bit the 64-bit mark argument is passed in as "high32", "low32". Signed-off-by: David S. Miller <davem@davemloft.net>
* improve sys_newuname() for compat architecturesChristoph Hellwig2010-03-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | On an architecture that supports 32-bit compat we need to override the reported machine in uname with the 32-bit value. Instead of doing this separately in every architecture introduce a COMPAT_UTS_MACHINE define in <asm/compat.h> and apply it directly in sys_newuname(). Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add generic sys_ipc wrapperChristoph Hellwig2010-03-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a generic implementation of the ipc demultiplexer syscall. Except for s390 and sparc64 all implementations of the sys_ipc are nearly identical. There are slight differences in the types of the parameters, where mips and powerpc as the only 64-bit architectures with sys_ipc use unsigned long for the "third" argument as it gets casted to a pointer later, while it traditionally is an "int" like most other paramters. frv goes even further and uses unsigned long for all parameters execept for "ptr" which is a pointer type everywhere. The change from int to unsigned long for "third" and back to "int" for the others on frv should be fine due to the in-register calling conventions for syscalls (we already had a similar issue with the generic sys_ptrace), but I'd prefer to have the arch maintainers looks over this in details. Except for that h8300, m68k and m68knommu lack an impplementation of the semtimedop sub call which this patch adds, and various architectures have gets used - at least on i386 it seems superflous as the compat code on x86-64 and ia64 doesn't even bother to implement it. [akpm@linux-foundation.org: add sys_ipc to sys_ni.c] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sparc64: Kill off old sys_perfctr system call and state.David S. Miller2010-03-031-2/+2
| | | | | | | | People should be using the perf events interfaces, and the way these system call facilities used the %pcr conflicts with the usage of the NMI watchdog and perf events. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc_brk() is not needed anymoreAl Viro2009-12-111-2/+2
| | | | | | | | | the checks it's doing are duplicated in sys_brk() and failing them early makes no sense, AFAICT. Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill useless checks in sparc mremap variantsAl Viro2009-12-111-1/+1
| | | | | | Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2009-12-081-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits) mac80211: fix reorder buffer release iwmc3200wifi: Enable wimax core through module parameter iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter iwmc3200wifi: Coex table command does not expect a response iwmc3200wifi: Update wiwi priority table iwlwifi: driver version track kernel version iwlwifi: indicate uCode type when fail dump error/event log iwl3945: remove duplicated event logging code b43: fix two warnings ipw2100: fix rebooting hang with driver loaded cfg80211: indent regulatory messages with spaces iwmc3200wifi: fix NULL pointer dereference in pmkid update mac80211: Fix TX status reporting for injected data frames ath9k: enable 2GHz band only if the device supports it airo: Fix integer overflow warning rt2x00: Fix padding bug on L2PAD devices. WE: Fix set events not propagated b43legacy: avoid PPC fault during resume b43: avoid PPC fault during resume tcp: fix a timewait refcnt race ... Fix up conflicts due to sysctl cleanups (dead sysctl_check code and CTL_UNNUMBERED removed) in kernel/sysctl_check.c net/ipv4/sysctl_net_ipv4.c net/ipv6/addrconf.c net/sctp/sysctl.c
| * net: Introduce recvmmsg socket syscallArnaldo Carvalho de Melo2009-10-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | sysctl: sparc Use the compat_sys_sysctlEric W. Biederman2009-11-061-1/+1
|/ | | | | | | | Now that we have a generic 32bit compatibility implementation there is no need for sparc to implement it's own. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
* perf: Do the big rename: Performance Counters -> Performance EventsIngo Molnar2009-09-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
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