- 21 10月, 2014 2 次提交
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由 Max Filippov 提交于
Add MAP_UNINITIALIZED to xtensa version of mman.h to keep mm/nommu.c happy. Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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由 Max Filippov 提交于
Userspace actually passes single parameter (path name) to the umount syscall, so new umount just fails. Fix it by requesting old umount syscall implementation and re-wiring umount to it. Cc: stable@vger.kernel.org Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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- 06 10月, 2014 1 次提交
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由 Max Filippov 提交于
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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- 14 8月, 2014 2 次提交
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由 Miklos Szeredi 提交于
Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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由 Max Filippov 提交于
This fixes userspace code that builds on other architectures but fails on xtensa due to references to structures that other architectures don't refer to. E.g. this fixes the following issue with python-2.7.8: python-2.7.8/Modules/termios.c:861:25: error: invalid application of 'sizeof' to incomplete type 'struct serial_multiport_struct' {"TIOCSERGETMULTI", TIOCSERGETMULTI}, python-2.7.8/Modules/termios.c:870:25: error: invalid application of 'sizeof' to incomplete type 'struct serial_multiport_struct' {"TIOCSERSETMULTI", TIOCSERSETMULTI}, python-2.7.8/Modules/termios.c:900:24: error: invalid application of 'sizeof' to incomplete type 'struct tty_struct' {"TIOCTTYGSTRUCT", TIOCTTYGSTRUCT}, Cc: stable@vger.kernel.org Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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- 22 2月, 2014 1 次提交
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由 Max Filippov 提交于
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
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- 19 1月, 2014 1 次提交
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由 Michal Sekletar 提交于
For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9 ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: NMichal Sekletar <msekleta@redhat.com> Cc: David Miller <davem@davemloft.net> Reviewed-by: NDaniel Borkmann <dborkman@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 9月, 2013 1 次提交
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由 Eric Dumazet 提交于
As mentioned in commit afe4fd06 ("pkt_sched: fq: Fair Queue packet scheduler"), this patch adds a new socket option. SO_MAX_PACING_RATE offers the application the ability to cap the rate computed by transport layer. Value is in bytes per second. u32 val = 1000000; setsockopt(sockfd, SOL_SOCKET, SO_MAX_PACING_RATE, &val, sizeof(val)); To be effectively paced, a flow must use FQ packet scheduler. Note that a packet scheduler takes into account the headers for its computations. The effective payload rate depends on MSS and retransmits if any. I chose to make this pacing rate a SOL_SOCKET option instead of a TCP one because this can be used by other protocols. Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 7月, 2013 1 次提交
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由 Eliezer Tamir 提交于
Rename LL_SO to BUSY_POLL_SO Rename sysctl_net_ll_{read,poll} to sysctl_busy_{read,poll} Fix up users of these variables. Fix documentation for sysctl. a patch for the socket.7 man page will follow separately, because of limitations of my mail setup. Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 6月, 2013 1 次提交
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由 Eliezer Tamir 提交于
adds a socket option for low latency polling. This allows overriding the global sysctl value with a per-socket one. Unexport sysctl_net_ll_poll since for now it's not needed in modules. Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 4月, 2013 1 次提交
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由 Keller, Jacob E 提交于
Currently, when a socket receives something on the error queue it only wakes up the socket on select if it is in the "read" list, that is the socket has something to read. It is useful also to wake the socket if it is in the error list, which would enable software to wait on error queue packets without waking up for regular data on the socket. The main use case is for receiving timestamped transmit packets which return the timestamp to the socket via the error queue. This enables an application to select on the socket for the error queue only instead of for the regular traffic. -v2- * Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file * Modified every socket poll function that checks error queue Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Cc: Jeffrey Kirsher <jeffrey.t.kirsher@intel.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Matthew Vick <matthew.vick@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 2月, 2013 1 次提交
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由 Chris Zankel 提交于
Signed-off-by: NChris Zankel <chris@zankel.net>
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- 24 2月, 2013 2 次提交
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由 Max Filippov 提交于
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Max Filippov 提交于
This fixes the following build error in the current linux-next: include/linux/signal.h:261:2: error: unknown type name '__sigrestore_t' make[2]: *** [arch/xtensa/kernel/asm-offsets.s] Error 1 make[1]: *** [prepare0] Error 2 make: *** [sub-make] Error 2 that appeared after 32dae82 'consolidate kernel-side struct sigaction declarations' Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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- 04 2月, 2013 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 24 1月, 2013 1 次提交
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由 Tom Herbert 提交于
Definitions and macros for implementing soreusport. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 1月, 2013 1 次提交
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由 Vincent Bernat 提交于
While a privileged program can open a raw socket, attach some restrictive filter and drop its privileges (or send the socket to an unprivileged program through some Unix socket), the filter can still be removed or modified by the unprivileged program. This commit adds a socket option to lock the filter (SO_LOCK_FILTER) preventing any modification of a socket filter program. This is similar to OpenBSD BIOCLOCK ioctl on bpf sockets, except even root is not allowed change/drop the filter. The state of the lock can be read with getsockopt(). No error is triggered if the state is not changed. -EPERM is returned when a user tries to remove the lock or to change/remove the filter while the lock is active. The check is done directly in sk_attach_filter() and sk_detach_filter() and does not affect only setsockopt() syscall. Signed-off-by: NVincent Bernat <bernat@luffy.cx> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 12月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 12 12月, 2012 1 次提交
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由 Andi Kleen 提交于
There was some desire in large applications using MAP_HUGETLB or SHM_HUGETLB to use 1GB huge pages on some mappings, and stay with 2MB on others. This is useful together with NUMA policy: use 2MB interleaving on some mappings, but 1GB on local mappings. This patch extends the IPC/SHM syscall interfaces slightly to allow specifying the page size. It borrows some upper bits in the existing flag arguments and allows encoding the log of the desired page size in addition to the *_HUGETLB flag. When 0 is specified the default size is used, this makes the change fully compatible. Extending the internal hugetlb code to handle this is straight forward. Instead of a single mount it just keeps an array of them and selects the right mount based on the specified page size. When no page size is specified it uses the mount of the default page size. The change is not visible in /proc/mounts because internal mounts don't appear there. It also has very little overhead: the additional mounts just consume a super block, but not more memory when not used. I also exported the new flags to the user headers (they were previously under __KERNEL__). Right now only symbols for x86 and some other architecture for 1GB and 2MB are defined. The interface should already work for all other architectures though. Only architectures that define multiple hugetlb sizes actually need it (that is currently x86, tile, powerpc). However tile and powerpc have user configurable hugetlb sizes, so it's not easy to add defines. A program on those architectures would need to query sysfs and use the appropiate log2. [akpm@linux-foundation.org: cleanups] [rientjes@google.com: fix build] [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: NAndi Kleen <ak@linux.intel.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: NRik van Riel <riel@redhat.com> Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hillf Danton <dhillf@gmail.com> Signed-off-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 11月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 26 10月, 2012 3 次提交
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由 Max Filippov 提交于
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Cyrill Gorcunov 提交于
This patch defines new ioctl codes TIOCGPKT, TIOCGPTLCK, TIOCGEXCL for fetching pty's packet mode and locking state, and exclusive mode of tty. [ No real handlers for the codes though, this will be addressed in another patch for easier review and bisectability ] Signed-off-by: NCyrill Gorcunov <gorcunov@openvz.org> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> CC: "H. Peter Anvin" <hpa@zytor.com> CC: Pavel Emelyanov <xemul@parallels.com> CC: Jiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 20 10月, 2012 1 次提交
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由 Chris Zankel 提交于
Add the following system calls to the syscall table: fallocate sendmmsg umount2 syncfs epoll_create1 inotify_init1 signalfd4 dup3 pipe2 timerfd_create timerfd_settime timerfd_gettime eventfd2 preadv pwritev fanotify_init fanotify_mark process_vm_readv process_vm_writev name_to_handle_at open_by_handle_at sync_file_range perf_event_open rt_tgsigqueueinfo clock_adjtime prlimit64 kcmp Note that we have to use the 'sys_sync_file_range2' version, so that the 64-bit arguments are aligned correctly to the argument registers. Signed-off-by: NChris Zankel <chris@zankel.net>
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- 16 10月, 2012 2 次提交
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由 Max Filippov 提交于
Use Kbuild infrastructure to handle the asm-generic headers and remove the wrapper headers that call them. This only affects headers that do nothing but include the generic equivalent. It does not touch any header that does a little more. Signed-off-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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由 David Howells 提交于
UAPI: (Scripted) Disintegrate arch/xtensa/include/asm Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NMichael Kerrisk <mtk.manpages@gmail.com> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: NDave Jones <davej@redhat.com> Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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- 03 10月, 2012 1 次提交
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由 David Howells 提交于
Set up empty UAPI Kbuild files to be populated by the header splitter. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: NDave Jones <davej@redhat.com>
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