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freebsd-skq/lib/libc/sys
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John Baldwin 9c20dc9963 Add more documentation regarding unsafe AIO requests. 
The asynchronous I/O changes made previously result in different
behavior out of the box. Previously all AIO requests failed with
ENOSYS / SIGSYS unless aio.ko was explicitly loaded. Now, some AIO
requests complete and others ("unsafe" requests) fail with EOPNOTSUPP.

Reword the introductory paragraph in aio(4) to add a general
description of AIO before describing the vfs.aio.enable_unsafe sysctl.

Remove the ENOSYS error description from aio_fsync(2), aio_read(2),
and aio_write(2) and replace it with a description of EOPNOTSUPP.

Remove the ENOSYS error description from aio_mlock(2).

Log a message to the system log the first time a process requests an
"unsafe" AIO request that fails with EOPNOTSUPP. This is modeled on
the log message used for processes using the legacy pty devices.

Reviewed by:	kib (earlier version)
MFC after:	1 week
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7151
2016-07-21 22:49:47 +00:00
..
__error.c
Add missing include to eliminate -Wmissing-prototypes warnings
2015-09-20 03:49:08 +00:00
__vdso_gettimeofday.c
Copy the fencing of the algorithm to do lock-less update and reading
2015-08-04 12:33:51 +00:00
_exit.2
…
_umtx_op.2
Fix markup.
2016-06-04 20:20:14 +00:00
abort2.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
accept4.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
accept.2
accept(2) may and can return EAGAIN, document it.
2014-10-10 03:05:55 +00:00
accept.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
access.2
Various mdoc fixes and a few EOL whitespace removals.
2014-12-21 12:36:36 +00:00
acct.2
…
adjtime.2
…
aio_cancel.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
aio_error.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
aio_fsync.2
Add more documentation regarding unsafe AIO requests.
2016-07-21 22:49:47 +00:00
aio_mlock.2
Add more documentation regarding unsafe AIO requests.
2016-07-21 22:49:47 +00:00
aio_read.2
Add more documentation regarding unsafe AIO requests.
2016-07-21 22:49:47 +00:00
aio_return.2
Fully handle size_t lengths in AIO requests.
2016-03-21 21:37:33 +00:00
aio_suspend.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
aio_suspend.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
aio_waitcomplete.2
Fully handle size_t lengths in AIO requests.
2016-03-21 21:37:33 +00:00
aio_write.2
Add more documentation regarding unsafe AIO requests.
2016-07-21 22:49:47 +00:00
bind.2
Document EINVAL as per POSIX.
2014-06-26 10:21:00 +00:00
bindat.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
brk.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:19:06 +00:00
cap_enter.2
Update system man pages for s/capability.h/capsicum.h/.
2014-03-27 21:43:00 +00:00
cap_fcntls_limit.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
cap_ioctls_limit.2
forgot to bump date, and replace contraction (igor)...
2015-03-07 03:48:32 +00:00
cap_rights_limit.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
chdir.2
…
chflags.2
Add some missing .Nm for newer syscalls in existing man pages.
2014-01-11 22:00:16 +00:00
chmod.2
chmod(2): Document S_ISVTX following SUSv3/SUSv4.
2013-12-01 12:24:57 +00:00
chown.2
…
chroot.2
- Use standard RETURN VALUES section.
2013-01-15 14:09:08 +00:00
clock_gettime.2
Verify that tv_sec value specified in settimeofday() and clock_settime()
2015-12-27 15:37:07 +00:00
clock_gettime.c
Use struct vdso_timehands data to implement fast gettimeofday(2) and
2012-06-22 07:13:30 +00:00
close.2
Consistently reference file descriptors as "fd". 55 other manpages
2013-09-12 00:53:38 +00:00
close.c
Add missing includes to eliminate -Wmissing-prototypes warnings
2015-09-20 03:45:57 +00:00
closefrom.2
Reassign copyright statements on several files from Advanced
2015-04-23 14:22:20 +00:00
connect.2
- connect(2) Clarify namelen
2016-02-04 18:03:06 +00:00
connect.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
connectat.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
cpuset_getaffinity.2
Improve errno documentation in pthread_create(3) and thr_new(2)
2016-06-03 14:30:32 +00:00
cpuset.2
cpuset.9: Link to/from the new page
2015-10-20 23:52:37 +00:00
dup.2
Add man page dup3(3).
2013-08-16 13:16:27 +00:00
execve.2
…
extattr_get_file.2
Fix return type of extattr_set_* and fix rmextattr(8) utility.
2013-04-02 05:30:41 +00:00
fcntl.2
fcntl(2): Document interrupt/restart for file locks.
2016-07-07 21:44:59 +00:00
fcntl.c
The lseek(2), mmap(2), truncate(2), ftruncate(2), pread(2), and
2015-04-18 21:50:13 +00:00
ffclock.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
fhopen.2
…
flock.2
Document that flock can return ENOLCK
2011-11-10 06:20:18 +00:00
fork.2
fork(2): Add a note to the effect that kqueue descriptors, unlike other
2015-05-02 00:29:27 +00:00
fork.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
fsync.2
…
fsync.c
Add missing includes to eliminate -Wmissing-prototypes warnings
2015-09-20 03:45:57 +00:00
futimens.c
Update futimens/utimensat for MFC to stable/10:
2016-01-12 20:53:57 +00:00
getdirentries.2
Fix spelling of MAXNAMLEN.
2016-03-09 13:45:03 +00:00
getdtablesize.2
sysconf(2) -> sysconf(3)
2016-02-29 17:20:04 +00:00
getfh.2
getfh(2): Add xrefs for fhopen(2), open(2), stat(2).
2011-04-14 22:06:11 +00:00
getfsstat.2
…
getgid.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:19:06 +00:00
getgroups.2
getgroups(2): Remove mention of <sys/param.h> and refer to sysconf(3).
2011-01-21 22:15:17 +00:00
getitimer.2
…
getlogin.2
…
getloginclass.2
Add some .Xrs to getloginclass(2).
2016-07-12 06:00:57 +00:00
getpeername.2
Document that getpeername(2) and getsockname(2) can fail with EINVAL.
2012-11-23 10:14:54 +00:00
getpgrp.2
…
getpid.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:19:06 +00:00
getpriority.2
…
getrlimit.2
getrlimit.2: Document RSS, AS/VMEM limit behavior more clearly
2015-08-20 00:00:15 +00:00
getrusage.2
…
getsid.2
…
getsockname.2
Document that getpeername(2) and getsockname(2) can fail with EINVAL.
2012-11-23 10:14:54 +00:00
getsockopt.2
Correct the returned message lengths for timeval and bintime control
2013-04-05 18:09:43 +00:00
gettimeofday.2
Verify that tv_sec value specified in settimeofday() and clock_settime()
2015-12-27 15:37:07 +00:00
gettimeofday.c
Rework the __vdso_* symbols attributes to only make the symbols weak,
2013-01-30 12:48:16 +00:00
getuid.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:08:29 +00:00
interposing_table.c
If libthr.so is dlopened without RTLD_GLOBAL flag, the libthr symbols
2016-02-08 19:24:13 +00:00
intro.2
mdoc: remove superfluous paragraph macros.
2014-06-23 18:40:21 +00:00
ioctl.2
Consistently reference file descriptors as "fd". 55 other manpages
2013-09-12 00:53:38 +00:00
issetugid.2
…
jail.2
Mark jail(2), and the sysctls that it (and only it) uses as deprecated.
2016-05-30 05:21:24 +00:00
kenv.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
kevent.c
Make kevent(2) a cancellation point.
2015-03-29 19:14:41 +00:00
kill.2
Update the kill(2) and killpg(2) man pages to the modern permission
2012-10-22 03:37:00 +00:00
kldfind.2
…
kldfirstmod.2
…
kldload.2
…
kldnext.2
…
kldstat.2
Fix comment to specify correct struct name.
2012-03-28 23:51:06 +00:00
kldsym.2
…
kldunload.2
…
kqueue.2
Correct wording.
2016-05-03 15:58:35 +00:00
kse.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
ktrace.2
Document KTRFAC_FAULT and KTRFAC_FAULTEND.
2016-03-31 23:55:19 +00:00
link.2
…
lio_listio.2
Add documentation for the sigevent structure.
2016-07-15 15:12:56 +00:00
listen.2
Document that listen(2) can fail with EDESTADDRREQ.
2014-07-15 02:21:51 +00:00
lseek.2
Bump .Dd for r295764
2016-02-18 18:50:03 +00:00
madvise.2
Correct the description of MADV_DONTNEED. Specifically, after using
2015-07-12 19:18:19 +00:00
Makefile.inc
Replace use of the pipe(2) system call with pipe2(2) with a zero flags
2016-06-22 21:11:27 +00:00
mincore.2
…
minherit.2
…
mkdir.2
…
mkfifo.2
…
mknod.2
…
mlock.2
Minor mdoc fix
2014-05-30 02:16:28 +00:00
mlockall.2
- Update manual pages accordingly to r244384 and r244385.
2012-12-25 13:43:01 +00:00
mmap.2
fix spelling, add comma and remove BUGS section.. it provided no useful
2015-02-19 01:51:17 +00:00
modfind.2
Use the right argumant name
2016-03-18 08:47:17 +00:00
modnext.2
…
modstat.2
…
mount.2
Remove obsolete bits about maximum number of file systems.
2015-04-12 21:14:58 +00:00
mprotect.2
…
mq_close.2
…
mq_getattr.2
Match the correct variable to the variable description.
2014-02-21 13:53:41 +00:00
mq_notify.2
Add documentation for the sigevent structure.
2016-07-15 15:12:56 +00:00
mq_open.2
document mqueuefs is required for mq_open...
2014-09-15 22:32:35 +00:00
mq_receive.2
…
mq_send.2
…
mq_setattr.2
mq_setattr(2): Add missing const to man page.
2011-05-17 21:03:34 +00:00
msgctl.2
…
msgget.2
…
msgrcv.2
…
msgsnd.2
General mdoc(7) and typo fixes.
2012-05-08 18:56:21 +00:00
msync.2
msync(2) must return ENOMEM and not EINVAL when the address is outside the
2014-05-07 08:38:02 +00:00
msync.c
Add missing includes to eliminate -Wmissing-prototypes warnings
2015-09-20 03:45:57 +00:00
munmap.2
…
nanosleep.2
…
nanosleep.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
nfssvc.2
Globally replace u_int*_t from (non-contributed) man pages.
2012-02-12 18:29:56 +00:00
ntp_adjtime.2
…
numa_getaffinity.2
Add an initial NUMA affinity/policy configuration for threads and processes.
2015-07-11 15:21:37 +00:00
open.2
Fix markup.
2015-07-07 19:23:59 +00:00
open.c
Reduce the size of the interposing table and amount of
2015-01-11 22:16:31 +00:00
openat.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
pathconf.2
General mdoc(7) and typo fixes.
2012-05-08 18:56:21 +00:00
pdfork.2
Introduce the PD_CLOEXEC for pdfork(2).
2016-06-08 02:09:14 +00:00
pipe.2
Change wording to use function rather than system call in the description
2016-07-20 18:16:58 +00:00
pipe.c
Replace use of the pipe(2) system call with pipe2(2) with a zero flags
2016-06-22 21:11:27 +00:00
poll.2
Various mdoc fixes and a few EOL whitespace removals.
2014-12-21 12:36:36 +00:00
poll.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
posix_fadvise.2
Revert r288628 and instead fix a discrepancy between the posix_fadvise(2)
2015-10-03 22:27:14 +00:00
posix_fallocate.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
posix_openpt.2
Escape "Ed"
2015-04-26 10:52:37 +00:00
ppoll.c
Make wait6(2), waitid(3) and ppoll(2) cancellation points. The
2015-04-18 21:35:41 +00:00
procctl.2
Editing pass on procctl.2
2015-08-21 02:42:14 +00:00
profil.2
…
pselect.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
pselect.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
ptrace.2
Add PTRACE_VFORK to trace vfork events.
2016-07-18 14:53:55 +00:00
quotactl.2
Remove trailing whitespace per mdoc lint warning
2012-03-29 05:02:12 +00:00
read.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:19:06 +00:00
read.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
readlink.2
…
readv.c
Add missing includes to eliminate -Wmissing-prototypes warnings
2015-09-20 03:45:57 +00:00
reboot.2
kenv(8) -> kenv(1)
2016-02-29 17:22:34 +00:00
recv.2
Add implementations of sendmmsg(3) and recvmmsg(3) functions which
2016-01-29 14:12:12 +00:00
recvfrom.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
recvmsg.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
rename.2
…
revoke.2
Restore flushing of output for revoke(2) again. Document revoke()'s
2016-01-26 07:57:44 +00:00
rfork.2
Document RFTSIGZMB. Fix spelling of SIGCHLD. Note that signals are
2011-07-12 20:38:42 +00:00
rmdir.2
…
rtprio.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
sched_get_priority_max.2
…
sched_setparam.2
…
sched_setscheduler.2
Various mdoc fixes and a few EOL whitespace removals.
2014-12-21 12:36:36 +00:00
sched_yield.2
…
sctp_generic_recvmsg.2
Remove the advertising clause from the Regents of the University of
2013-05-28 21:05:06 +00:00
sctp_generic_sendmsg.2
Remove the advertising clause from the Regents of the University of
2013-05-28 21:05:06 +00:00
sctp_peeloff.2
Remove the advertising clause from the Regents of the University of
2013-05-28 21:05:06 +00:00
select.2
Remove trailing whitespace per mdoc lint warning
2012-03-29 05:02:12 +00:00
select.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
semctl.2
…
semget.2
semget(2): Add missing [EINVAL] conditions.
2016-02-07 21:25:08 +00:00
semop.2
…
send.2
Add implementations of sendmmsg(3) and recvmmsg(3) functions which
2016-01-29 14:12:12 +00:00
sendfile.2
New sendfile(2) syscall. A joint effort of NGINX and Netflix from 2013 and
2016-01-08 20:34:57 +00:00
sendmsg.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
sendto.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
setcontext.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
setfib.2
Update the setfib man page to reflect recent changes.
2013-05-20 20:47:40 +00:00
setgroups.2
…
setpgid.2
…
setregid.2
…
setresuid.2
Remove useless comment.
2015-02-07 13:11:45 +00:00
setreuid.2
…
setsid.2
…
setuid.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:08:29 +00:00
shm_open.2
use .Mt to mark up email addresses consistently (part4)
2014-06-23 08:25:03 +00:00
shmat.2
…
shmctl.2
Change the default setting of kern.ipc.shm_allow_removed from 0 to 1.
2015-10-10 09:29:47 +00:00
shmget.2
…
shutdown.2
Make shutdown() return ENOTCONN as required by POSIX, part deux.
2015-07-27 13:17:57 +00:00
sigaction.2
Update some signal man pages for multithreading.
2013-09-06 09:08:40 +00:00
sigaction.c
Switch libc from using _sig{procmask,action,suspend} symbols, which
2015-08-29 14:25:01 +00:00
sigaltstack.2
…
sigpending.2
Update some signal man pages for multithreading.
2013-09-06 09:08:40 +00:00
sigprocmask.2
…
sigprocmask.c
Switch libc from using _sig{procmask,action,suspend} symbols, which
2015-08-29 14:25:01 +00:00
sigqueue.2
sigqueue(2): Fix typo (EEPERM -> EPERM).
2013-02-10 13:20:23 +00:00
sigreturn.2
Update some signal man pages for multithreading.
2013-09-06 09:08:40 +00:00
sigstack.2
…
sigsuspend.2
sigsuspend(2): Add xrefs to pselect(2) and sigwait-alikes.
2013-08-15 22:33:27 +00:00
sigsuspend.c
Switch libc from using _sig{procmask,action,suspend} symbols, which
2015-08-29 14:25:01 +00:00
sigtimedwait.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
sigwait.2
Update some signal man pages for multithreading.
2013-09-06 09:08:40 +00:00
sigwait.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
sigwaitinfo.2
Various mdoc fixes and a few EOL whitespace removals.
2014-12-21 12:36:36 +00:00
sigwaitinfo.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
socket.2
Catch up with many years of changes:
2014-06-24 20:23:18 +00:00
socketpair.2
Partially revert r255486, the first argument to socketpair() is a socket
2015-05-04 14:23:31 +00:00
stat.2
- Add the 'restrict' type qualifier to match function prototype.
2016-01-14 01:33:16 +00:00
statfs.2
…
swapcontext.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
swapon.2
The compile time constant limit on number of swap devices was removed in 5.2.
2013-12-25 16:01:29 +00:00
Symbol.map
Remove Symbol.map entries for old AIO system calls for FreeBSD 6 compat.
2016-03-12 07:13:20 +00:00
symlink.2
…
sync.2
syncer(4) is a kernel process, not a user process
2014-02-27 04:06:34 +00:00
sysarch.2
…
syscall.2
…
thr_exit.2
thr_*(2): Add xrefs to what libthr implements using each syscall.
2016-06-01 21:58:13 +00:00
thr_kill.2
thr_*(2): Add xrefs to what libthr implements using each syscall.
2016-06-01 21:58:13 +00:00
thr_new.2
Improve errno documentation in pthread_create(3) and thr_new(2)
2016-06-03 14:30:32 +00:00
thr_self.2
thr_*(2): Add xrefs to what libthr implements using each syscall.
2016-06-01 21:58:13 +00:00
thr_set_name.2
thr_*(2): Add xrefs to what libthr implements using each syscall.
2016-06-01 21:58:13 +00:00
timer_create.2
Add documentation for the sigevent structure.
2016-07-15 15:12:56 +00:00
timer_delete.2
General mdoc(7) and typo fixes.
2012-05-08 18:56:21 +00:00
timer_settime.2
General mdoc(7) and typo fixes.
2012-05-08 18:56:21 +00:00
trivial-vdso_tc.c
libc: Eliminate duplicate copies of __vdso_gettc.c
2015-04-02 21:18:11 +00:00
truncate.2
Various updates to the ftruncate(2) documentation:
2015-05-04 14:47:00 +00:00
umask.2
…
undelete.2
…
unlink.2
unlink(2): Note the possibility for ENOSPC to be returned on ZFS.
2015-07-28 22:48:58 +00:00
utimensat.2
utimensat(2): Correct description of [EINVAL] error.
2016-01-17 21:14:27 +00:00
utimensat.c
Update futimens/utimensat for MFC to stable/10:
2016-01-12 20:53:57 +00:00
utimes.2
utimes(2),utime(3): Add deprecation in favour of utimensat(2) and futimens(2).
2016-06-09 22:14:58 +00:00
utrace.2
mdoc: sort Xr
2016-01-18 20:21:38 +00:00
uuidgen.2
…
vfork.2
vfork(2): Mention some risks of calling vfork() from application code.
2016-05-22 13:32:45 +00:00
wait4.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
wait6.c
Make wait6(2), waitid(3) and ppoll(2) cancellation points. The
2015-04-18 21:35:41 +00:00
wait.2
Document behavior of wait introduced in the r286698.
2016-06-01 19:49:38 +00:00
write.2
Remove sys/types.h due to STANDARDS and unistd.h also includes sys/types.h.
2015-12-15 15:19:06 +00:00
write.c
Fix known issues which blow up the process after dlopen("libthr.so")
2015-01-03 18:38:46 +00:00
writev.c
Add missing includes to eliminate -Wmissing-prototypes warnings
2015-09-20 03:45:57 +00:00