Konstantin Belousov 7a202823aa Expose eventfd in the native API/ABI using a new __specialfd syscall ... eventfd is a Linux system call that produces special file descriptors for event notification. When porting Linux software, it is currently usually emulated by epoll-shim on top of kqueues. Unfortunately, kqueues are not passable between processes. And, as noted by the author of epoll-shim, even if they were, the library state would also have to be passed somehow. This came up when debugging strange HW video decode failures in Firefox. A native implementation would avoid these problems and help with porting Linux software. Since we now already have an eventfd implementation in the kernel (for the Linuxulator), it's pretty easy to expose it natively, which is what this patch does. Submitted by: greg@unrelenting.technology Reviewed by: markj (previous version) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D26668		2020-12-27 12:57:26 +02:00
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check_error.d
check_internal_locks.d
linux_common.c	Move V4L feature declarations and DTrace provider definitions from	2020-12-06 10:58:55 +00:00
linux_common.h
linux_dtrace.h
linux_dummy.c	linux(4): Implement name_to_handle_at(), open_by_handle_at()	2020-11-17 19:51:47 +00:00
linux_emul.c	Linuxolator: Replace use of eventhandlers by sysent hooks.	2020-11-23 18:18:16 +00:00
linux_emul.h	Linuxolator: Replace use of eventhandlers by sysent hooks.	2020-11-23 18:18:16 +00:00
linux_errno.c	Add linux_to_bsd_errtbl[], mapping Linux errnos to their BSD counterparts.	2020-11-04 19:54:18 +00:00
linux_errno.h	Unbreak buildworld after r367339.	2020-11-04 21:39:04 +00:00
linux_errno.inc	Add linux_to_bsd_errtbl[], mapping Linux errnos to their BSD counterparts.	2020-11-04 19:54:18 +00:00
linux_event.c	Expose eventfd in the native API/ABI using a new __specialfd syscall	2020-12-27 12:57:26 +02:00
linux_event.h	Linux epoll: Register events with zero event mask	2019-11-24 20:47:40 +00:00
linux_file.c	linux(4): Implement name_to_handle_at(), open_by_handle_at()	2020-11-17 19:51:47 +00:00
linux_file.h	linux(4): Implement name_to_handle_at(), open_by_handle_at()	2020-11-17 19:51:47 +00:00
linux_fork.c	linux(4) clone(2): Correctly handle CLONE_FS and CLONE_FILES	2020-11-17 21:20:11 +00:00
linux_futex.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_futex.h	linux: futex_mtx should follow futex_list	2019-10-18 12:25:33 +00:00
linux_getcwd.c	cache: drop the always curthread argument from reverse lookup routines	2020-08-24 08:57:02 +00:00
linux_ioctl.c	Make MAXPHYS tunable. Bump MAXPHYS to 1M.	2020-11-28 12:12:51 +00:00
linux_ioctl.h	linux(4): Quiesce unrecognized ioctl warning for F2FS query	2020-11-02 18:45:43 +00:00
linux_ipc64.h
linux_ipc.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_ipc.h
linux_mib.c	- add more linux socket options (sorted by value)	2020-11-08 09:50:58 +00:00
linux_mib.h	Add compat.linux.dummy_rlimits, and disable by default.	2020-10-18 15:58:16 +00:00
linux_misc.c	linux(4): Fix loadable modules after r367395	2020-11-06 22:04:57 +00:00
linux_misc.h	linux(4) prctl(2): Implement PR_[GS]ET_DUMPABLE	2020-11-03 02:10:54 +00:00
linux_mmap.c	linux(4): Quiesce warning about madvise(..., -1)	2020-10-30 19:02:59 +00:00
linux_mmap.h	Add linux_madvise(2) instead of having Linux apps call the native	2020-06-20 18:29:22 +00:00
linux_persona.h
linux_signal.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_signal.h
linux_socket.c	unix(4): Enhance LOCAL_CREDS_PERSISTENT ABI	2020-11-17 20:01:21 +00:00
linux_socket.h	- add more linux socket options (sorted by value)	2020-11-08 09:50:58 +00:00
linux_stats.c	Fix potential race condition in linux stat(2).	2020-10-20 17:19:10 +00:00
linux_sysctl.c
linux_sysproto.h
linux_time.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_timer.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_timer.h	Centralize compatability translation macros.	2020-04-14 20:30:48 +00:00
linux_uid16.c	linux: add sysctl compat.linux.use_emul_path	2020-08-18 22:04:22 +00:00
linux_util.c	Move V4L feature declarations and DTrace provider definitions from	2020-12-06 10:58:55 +00:00
linux_util.h	- add more linux socket options (sorted by value)	2020-11-08 09:50:58 +00:00
linux_vdso.c	compat: clean up empty lines in .c and .h files	2020-09-01 21:24:33 +00:00
linux_vdso.h
linux_videodev2_compat.h
linux_videodev_compat.h
linux.c	linuxolator: implement memfd_create syscall	2020-06-29 03:09:14 +00:00
linux.h	linux(4): Improve netlink diagnostics	2020-11-03 19:50:42 +00:00
stats_timing.d
trace_futexes.d