Michael Kerrisk
61066e14ac
futex.2: srcfix: Remove some more or less obsolete FIXMEs
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-10-31 02:41:30 +01:00
Michael Kerrisk
9915ea2349
futex.2: srcfix: FIXME tidy-up
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-10-29 13:34:57 +02:00
Michael Kerrisk
8d82515260
futex.2: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-09-16 17:27:52 +02:00
Michael Kerrisk
d07d4ef308
futex.2: Order ERRORS alphabetically
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-08-08 05:54:13 +10:00
Michael Kerrisk
2ae96e8ae8
Removed trailing white space at end of lines
2016-07-17 18:10:19 +02:00
Michael Kerrisk
3df541c0e6
ldd.1, localedef.1, add_key.2, chroot.2, clone.2, fork.2, futex.2, get_mempolicy.2, get_robust_list.2, getitimer.2, getpriority.2, ioctl.2, ioctl_ficlonerange.2, ioctl_fideduperange.2, kcmp.2, kill.2, lookup_dcookie.2, mmap.2, mount.2, open.2, pciconfig_read.2, perf_event_open.2, prctl.2, process_vm_readv.2, ptrace.2, quotactl.2, recv.2, setfsgid.2, setfsuid.2, sysinfo.2, umask.2, umount.2, unshare.2, utimensat.2, wait.2, assert.3, fmax.3, fmin.3, getauxval.3, inet_pton.3, malloc_hook.3, memmem.3, mkdtemp.3, mktemp.3, printf.3, strcasecmp.3, strcat.3, strtoul.3, strxfrm.3, console_codes.4, console_ioctl.4, lirc.4, tty.4, vcs.4, charmap.5, elf.5, locale.5, proc.5, repertoiremap.5, utmp.5, capabilities.7, cgroup_namespaces.7, cgroups.7, charsets.7, cp1251.7, cp1252.7, credentials.7, feature_test_macros.7, iso_8859-1.7, iso_8859-15.7, iso_8859-5.7, koi8-r.7, koi8-u.7, man-pages.7, mount_namespaces.7, namespaces.7, netlink.7, pid_namespaces.7, unix.7, user_namespaces.7, utf-8.7: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-07-17 18:10:19 +02:00
Michael Kerrisk
c082f385d4
futex.2: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-07-07 10:12:58 +02:00
Michael Kerrisk
4100abc52e
futex.2: Explain how to get equivalent of FUTEX_WAIT with an absolute timeout
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Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-26 11:25:22 +02:00
Michael Kerrisk
678c99868e
futex.2: Describe FUTEX_BITSET_MATCH_ANY
...
Describe FUTEX_BITSET_MATCH_ANY and FUTEX_WAIT and FUTEX_WAKE
equivalences.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-26 11:25:11 +02:00
Michael Kerrisk
6c38ce7f1f
futex.2: Note that at least one bit must be set in mask for BITSET operations
...
At least one bit must be set in the 'val3' mask supplied for the
FUTEX_WAIT_BITSET and FUTEX_WAKE_BITSET operations.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 09:42:15 +02:00
Michael Kerrisk
84abf4ba97
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 09:34:16 +02:00
Michael Kerrisk
b3d5bc4ca6
futex.2: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 09:28:56 +02:00
Michael Kerrisk
ac991a11d7
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 08:55:17 +02:00
Michael Kerrisk
a6918f1d4b
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 08:54:03 +02:00
Michael Kerrisk
40d2dab928
futex.2: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 08:53:09 +02:00
Michael Kerrisk
6f19879d52
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 08:53:09 +02:00
Michael Kerrisk
a01c3098e8
futex.2: Clarify clock default and choices for FUTEX_WAIT
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-24 08:53:09 +02:00
Michael Kerrisk
8064bfa536
futex.2: Fix descriptions of various timeouts
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Darren Hart <dvhart@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-23 12:47:49 +02:00
Michael Kerrisk
017d194b0b
futex.2: Correct an ENOSYS error description
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Since Linux 4.5, FUTEX_CLOCK_REALTIME is allowed with with FUTEX_WAIT.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-23 12:47:41 +02:00
Michael Kerrisk
0b97369dd8
futex.2: Remove crufty text about FUTEX_WAIT_BITSET interpretation of timeout
...
Since Linux 4.5, FUTEX_WAIT also understands
FUTEX_CLOCK_REALTIME.
Reported-by: Darren Hart <dvhart@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-06-23 10:19:39 +02:00
Michael Kerrisk
979867082b
locale.1, localedef.1, _exit.2, accept.2, access.2, acct.2, adjtimex.2, bdflush.2, bind.2, bpf.2, brk.2, chdir.2, chmod.2, chown.2, chroot.2, clock_nanosleep.2, clone.2, close.2, connect.2, copy_file_range.2, create_module.2, delete_module.2, dup.2, epoll_ctl.2, eventfd.2, execve.2, fallocate.2, fanotify_init.2, fcntl.2, flock.2, fork.2, fsync.2, futex.2, get_kernel_syms.2, getdomainname.2, getgroups.2, gethostname.2, getpagesize.2, getpeername.2, getsid.2, getsockname.2, getsockopt.2, gettimeofday.2, init_module.2, ioctl.2, ioctl_list.2, ioperm.2, iopl.2, kexec_load.2, kill.2, killpg.2, link.2, listen.2, llseek.2, lseek.2, madvise.2, memfd_create.2, mincore.2, mkdir.2, mknod.2, mmap.2, mount.2, nanosleep.2, nice.2, open.2, personality.2, pipe.2, poll.2, posix_fadvise.2, read.2, readahead.2, readlink.2, readv.2, recv.2, recvmmsg.2, rename.2, request_key.2, sched_setaffinity.2, sched_setattr.2, select.2, select_tut.2, semctl.2, semop.2, send.2, sendfile.2, sendmmsg.2, seteuid.2, setns.2, setpgid.2, setreuid.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigsuspend.2, socketpair.2, splice.2, stat.2, statfs.2, stime.2, symlink.2, sync.2, syscall.2, syscalls.2, times.2, truncate.2, unlink.2, unshare.2, uselib.2, utimensat.2, vfork.2, vhangup.2, wait.2, wait4.2, write.2, a64l.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_read.3, aio_write.3, asin.3, asinh.3, atan.3, atan2.3, atanh.3, atoi.3, backtrace.3, cbrt.3, ceil.3, cfree.3, clearenv.3, clock_getcpuclockid.3, clog10.3, cmsg.3, copysign.3, cos.3, cosh.3, ctermid.3, ctime.3, daemon.3, dirfd.3, div.3, dl_iterate_phdr.3, drand48.3, drand48_r.3, dysize.3, ecvt.3, ecvt_r.3, endian.3, erf.3, erfc.3, errno.3, exec.3, exp.3, exp2.3, expm1.3, fabs.3, fdim.3, ferror.3, fexecve.3, ffs.3, fgetgrent.3, fgetpwent.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmin.3, fmod.3, fopen.3, fpclassify.3, frexp.3, fseeko.3, fts.3, futimes.3, fwide.3, gamma.3, gcvt.3, getaddrinfo.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getline.3, getloadavg.3, getmntent.3, getnameinfo.3, getnetent_r.3, getpass.3, getprotoent_r.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent_r.3, getservent_r.3, getspnam.3, getsubopt.3, getusershell.3, getutent.3, getw.3, gsignal.3, hypot.3, ilogb.3, inet.3, initgroups.3, insque.3, isalpha.3, isgreater.3, iswblank.3, j0.3, ldexp.3, lgamma.3, lio_listio.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, lrint.3, lround.3, makedev.3, matherr.3, mbsnrtowcs.3, mkdtemp.3, mkfifo.3, mkstemp.3, mktemp.3, modf.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_receive.3, mq_send.3, nan.3, nextafter.3, on_exit.3, open_memstream.3, opendir.3, perror.3, popen.3, posix_fallocate.3, posix_madvise.3, posix_memalign.3, posix_openpt.3, posix_spawn.3, pow.3, printf.3, profil.3, psignal.3, pthread_attr_setstack.3, pthread_setaffinity_np.3, putenv.3, putpwent.3, qecvt.3, rand.3, random.3, random_r.3, rcmd.3, readdir.3, realpath.3, remainder.3, remquo.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, scalb.3, scalbln.3, scandir.3, scanf.3, seekdir.3, sem_wait.3, setbuf.3, setenv.3, setjmp.3, setnetgrent.3, siginterrupt.3, signbit.3, significand.3, sigset.3, sigsetops.3, sigvec.3, sigwait.3, sin.3, sinh.3, sleep.3, sockatmark.3, sqrt.3, statvfs.3, stpcpy.3, stpncpy.3, strdup.3, strerror.3, strftime.3, strlen.3, strnlen.3, strsep.3, strsignal.3, strtod.3, strtok.3, strtol.3, strtoul.3, syslog.3, system.3, tan.3, tanh.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, trunc.3, ttyslot.3, tzset.3, ualarm.3, unlocked_stdio.3, usleep.3, wcpcpy.3, wcpncpy.3, wcscasecmp.3, wcsdup.3, wcsncasecmp.3, wcsnlen.3, wcsnrtombs.3, wprintf.3, y0.3, pts.4, st.4, tty_ioctl.4, elf.5, gai.conf.5, group.5, locale.5, nsswitch.conf.5, proc.5, utmp.5, aio.7, capabilities.7, credentials.7, environ.7, epoll.7, fanotify.7, feature_test_macros.7, inotify.7, ip.7, mq_overview.7, namespaces.7, pipe.7, signal.7, socket.7, standards.7, svipc.7, symlink.7, time.7, unicode.7, unix.7: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-03-15 17:30:43 +13:00
Michael Kerrisk
949ceae398
futex.2: FUTEX_CLOCK_REALTIME can now be used with FUTEX_WAIT
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-03-15 13:28:53 +13:00
Michael Kerrisk
def04e1ccf
chown.2, futex.2, membarrier.2, memfd_create.2, mount.2, msgop.2, open.2, open_by_handle_at.2, perf_event_open.2, readv.2, sched_setscheduler.2, syslog.2, basename.3: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-02-03 08:46:16 +01:00
Jakub Wilk
ed1819cf3e
futex.2: tfix
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Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
2016-02-03 08:27:03 +01:00
Jakub Wilk
67c67ff26b
futex.2: tfix
...
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2016-01-08 17:26:15 +01:00
Jakub Wilk
f6615c426b
futex.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-30 20:35:30 +01:00
Michael Kerrisk
cd175805de
futex.2: srcfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-30 13:57:02 +01:00
Michael Kerrisk
e24fbf1098
Removed trailing white space at end of lines
2015-12-29 13:51:32 +01:00
Michael Kerrisk
29b41e747f
accept.2, acct.2, bind.2, clock_getres.2, connect.2, dup.2, epoll_create.2, eventfd.2, execve.2, fanotify_init.2, fcntl.2, fork.2, futex.2, get_robust_list.2, getcpu.2, getpeername.2, getrlimit.2, getsockname.2, getsockopt.2, gettimeofday.2, inotify_init.2, listen.2, membarrier.2, memfd_create.2, mlock.2, mmap.2, personality.2, pipe.2, poll.2, recv.2, send.2, sendfile.2, shmget.2, shutdown.2, sigreturn.2, socket.2, socketcall.2, socketpair.2, spu_create.2, swapon.2, time.2, timerfd_create.2, uselib.2, dlerror.3, dlopen.3, drand48.3, errno.3, fnmatch.3, getgrent.3, getgrnam.3, getlogin.3, getpwent.3, getpwnam.3, iconv.3, mq_open.3, opendir.3, random_r.3, sem_open.3, shm_open.3, tmpfile.3, tzset.3, random.4, fanotify.7, futex.7, vdso.7, ld.so.8: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-29 13:48:42 +01:00
Michael Kerrisk
e258766bf4
accept.2, acct.2, epoll_create.2, execve.2, futex.2, inotify_init.2, mmap.2, open.2, pipe.2, shmget.2, socket.2, socketpair.2, spu_create.2, swapon.2, uselib.2, getgrent.3, getgrnam.3, getlogin.3, getpwent.3, getpwnam.3, mq_open.3, opendir.3, sem_open.3, shm_open.3, tmpfile.3, fanotify.7: ERRORS: standardize text for ENFILE error
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-27 17:10:23 +01:00
Michael Kerrisk
8adaf0a794
futex.2: Minor wording tweaks after comments from Darren Hart
...
Reported-by: Darren Hart <dvhart@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-26 09:02:35 +01:00
Michael Kerrisk
2af84f99ad
futex.2: wfix
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Reported-by: Jonathan Wakely <jwakely@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-19 06:22:47 +01:00
Michael Kerrisk
bc54ed38c5
futex.2: Minor wording fixes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-19 06:22:11 +01:00
Michael Kerrisk
5e1456d4c9
futex.2: Replace "bitset" by "bit mask"
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-19 06:22:02 +01:00
Michael Kerrisk
da894b18a8
futex.2: Fixes after comments from Darren Hart
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Reported-by: Darren Hart <dvhart@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-17 06:43:53 +01:00
Michael Kerrisk
0fb87d16ac
futex.2: Clarify "total ordering" a little
...
Comments from Davidlohr:
So there are two things here regarding ordering. One is the
most obvious which is ordered due to the taking/dropping the
hb spinlock. Secondly, its the cases which Peter brought up
a while ago that involves atomic futex ops futex_atomic_*(),
which do not have clearly defined semantics, and you get
inconsistencies with certain archs (tile being the worst
iirc).
But anyway, the important thing users need to know about is
that the atomic futex operation must be totally ordered wrt
any other user tasks that are trying to access that address.
This is not necessarily the case for kernel ops. Peter
illustrates this nicely with lock stealing example; (see
https://lkml.org/lkml/2015/8/26/596 ).
Internally, I believe we decided that making it fully ordered
(as opposed to making use of implicit barriers for
ACQUIRE/RELEASE), so you'd end up having an MB ll/sc MB kind of
setup.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Reported-by: Davidlohr Bueso <dave@stgolabs.net>
2015-12-17 06:43:40 +01:00
Michael Kerrisk
3fbb1be115
futex.2: Minor fixes after comments from Torvald Riegel
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 17:00:04 +01:00
Michael Kerrisk
57f2d48bc1
futex.2: tfix
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Reported-by: Alexander Monakov <amonakov@ispras.ru>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 16:47:52 +01:00
Michael Kerrisk
ee65b0e842
futex.2: srcfix (notes from conversation with tglx)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
c3f4c0196a
futex.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
d0442d147d
futex.2: wfix
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Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
1d09c1500f
futex.2: Fixes after feedback from Thomas Gleixner
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
ca4e5b2b99
futex.2: Minor wording fixes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
601399f31f
futex.2: Improvements after comments from Darren Hart
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Reported-by: Darren Hart <dvhart@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
adc89a976e
futex.2: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
41b6c6a080
futex.2: srcfix: FIXME
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
c3875d1d3a
futex.2: Fixes after review comments from Thomas Gleixner
...
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
30239c10a8
futex.2: Various fixes after comments from Thomas Gleixner
...
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
aab5ca4b64
futex.2: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00
Michael Kerrisk
f0a9e8f4ce
futex.2: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:49 +01:00