freebsd-skq/lib/libc/sys
Rick Macklem d189a74dfd copy_file_range(2): add recommendation to use large "len"
PR#252358 reported a serious performance problem w.r.t.
cp(1) when copying large non-sparse files.
This problem appears to have been caused by cp(1)
calling copy_file_range(2) with a small "len" argument.

This patch adds a recommendation to use a large "len"
value where possible, for performance reasons.

Reviewed by:	asomers
Differential Revision:	https://reviews.freebsd.org/D27935
2021-01-02 17:21:21 -08:00
..
__error.c
__vdso_gettimeofday.c libc: Fix possible overflow in binuptime(). 2020-04-09 23:22:35 +00:00
_exit.2
_umtx_op.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
abort2.2
accept4.c
accept.2
accept.c
access.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
acct.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
adjtime.2
aio_cancel.2
aio_error.2
aio_fsync.2
aio_mlock.2
aio_read.2
aio_return.2
aio_suspend.2 aio_suspend.2: properly canonicalize .Dd 2020-12-11 00:28:28 +00:00
aio_suspend.c
aio_waitcomplete.2
aio_write.2
bind.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
bindat.2
brk.2
brk.c
cap_enter.2 cap_enter(2): fix CAVEATS section 2020-12-11 00:26:49 +00:00
cap_fcntls_limit.2 libcasper(3): Document HISTORY within the manpages 2020-06-16 16:48:52 +00:00
cap_ioctls_limit.2 libcasper(3): Document HISTORY within the manpages 2020-06-16 16:48:52 +00:00
cap_rights_limit.2 libcasper(3): Document HISTORY within the manpages 2020-06-16 16:48:52 +00:00
chdir.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
chflags.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
chmod.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
chown.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
chroot.2 Updates to chroot(2) docs 2020-09-29 18:13:54 +00:00
clock_gettime.2 clock_gettime(2): add a HISTORY section 2019-12-07 16:45:12 +00:00
clock_gettime.c
clock_nanosleep.c
close.2
close.c
closefrom.2 Implement a close_range(2) syscall 2020-04-12 21:23:19 +00:00
closefrom.c closefrom: clamp lowfd to >= 0; close_range's parameters are unsigned. 2020-04-14 23:24:24 +00:00
compat-ino64.h Regularize my copyright notice 2019-12-04 16:56:11 +00:00
compat-stub.c
connect.2
connect.c
connectat.2
copy_file_range.2 copy_file_range(2): add recommendation to use large "len" 2021-01-02 17:21:21 -08:00
cpuset_getaffinity.2 cpuset{,_getaffinity,_getdomain}.2: fix SEE ALSO 2020-12-11 01:52:27 +00:00
cpuset_getdomain.2 cpuset{,_getaffinity,_getdomain}.2: fix SEE ALSO 2020-12-11 01:52:27 +00:00
cpuset.2 cpuset{,_getaffinity,_getdomain}.2: fix SEE ALSO 2020-12-11 01:52:27 +00:00
dup.2
eventfd.2 eventfd.2: Add the mail address of the submitter into copyright. 2020-12-28 21:03:16 +02:00
execve.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
extattr_get_file.2 extattr_get_file(20: bump .Dd 2020-12-08 04:18:16 +00:00
fcntl.2 vfs: provide F_ISUNIONSTACK as a kludge for libc 2020-01-17 14:42:25 +00:00
fcntl.c
fdatasync.c
ffclock.2
fhlink.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
fhopen.2
fhreadlink.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
flock.2
fork.2
fork.c
fstat.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
fstatat.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
fstatfs.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
fsync.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
fsync.c
getdents.c
getdirentries.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
getdirentries.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
getdtablesize.2
getfh.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
getfsstat.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
getfsstat.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
getgid.2 libc manpages: various improvements from NetBSD 2020-06-14 05:59:30 +00:00
getgroups.2
getitimer.2 Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
getlogin.2 getlogin_r: fix the type of len 2020-09-09 18:07:13 +00:00
getloginclass.2 Drop "All rights reserved" from all my stuff. This includes 2020-10-28 13:46:11 +00:00
getpeername.2
getpgrp.2
getpid.2
getpriority.2
getrandom.2 getrandom(2): Add Linux GRND_INSECURE API flag 2020-01-12 20:47:38 +00:00
getrlimit.2
getrusage.2
getsid.2
getsockname.2
getsockopt.2 Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
gettimeofday.2 Bump .Dd forgotten in last commit. 2018-10-28 03:02:09 +00:00
gettimeofday.c
getuid.2
interposing_table.c Fix initial exec TLS mode for dynamically loaded shared objects. 2019-03-29 17:52:57 +00:00
intro.2 Create new EINTEGRITY error with message "Integrity check failed". 2019-01-17 06:35:45 +00:00
ioctl.2
issetugid.2
jail.2 Revert r337922, except for some documention-only bits. This needs to wait 2018-08-16 19:09:43 +00:00
kenv.2
kevent.c
kill.2 Only return EPERM from kill(-pid) when no process was signalled. 2019-12-07 18:07:49 +00:00
kldfind.2
kldfirstmod.2
kldload.2
kldnext.2
kldstat.2
kldsym.2
kldunload.2
kqueue.2 Document eventfd(). 2020-12-27 12:57:26 +02:00
ktrace.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
link.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
lio_listio.2 lio_listio(2): fix manlint error 2020-12-08 03:48:05 +00:00
listen.2 Make sonewconn() overflow messages have per-socket rate-limits and values. 2020-04-14 15:38:18 +00:00
lseek.2 lseek(2): Document the seek behavior better and update the POSIX compliance 2020-07-13 15:52:57 +00:00
lstat.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
madvise.2
Makefile.inc Add eventfd(3) wrappers to libc. 2020-12-27 12:57:26 +02:00
mincore.2 Include the psind in data returned by mincore(2). 2020-09-02 18:16:43 +00:00
minherit.2
mkdir.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
mkfifo.2 Trim some duplicate EIO descriptions. 2020-03-30 21:48:47 +00:00
mknod.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
mknod.c
mlock.2 Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
mlockall.2 Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
mmap.2 mmap(2): Update .Dd missed in the last commit 2020-12-24 14:14:56 +00:00
modfind.2
modnext.2
modstat.2
mount.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
mprotect.2 Return ENOTSUP for mmap/mprotect if prot not subset of prot_max 2020-02-26 20:03:43 +00:00
mq_close.2
mq_getattr.2
mq_notify.2
mq_open.2 Revert the mode_t -> int changes and add a warning in the BUGS section instead. 2019-09-28 17:15:48 +00:00
mq_receive.2
mq_send.2
mq_setattr.2
msgctl.2 Avoid copying out kernel pointers from msgctl(IPC_STAT). 2020-07-09 17:26:49 +00:00
msgget.2
msgrcv.2
msgsnd.2
msync.2
msync.c
munmap.2
nanosleep.2
nanosleep.c
nfssvc.2
ntp_adjtime.2
open.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
open.c
openat.c libc: partially revert r326576 2020-04-25 14:24:54 +00:00
pathconf.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
pdfork.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
pipe.2
pipe.c
poll.2 poll.2: POLLNVAL is returned also for insufficient rights 2019-02-27 17:52:22 +00:00
poll.c
posix_fadvise.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
posix_fallocate.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
posix_openpt.2
ppoll.c
procctl.2 procctl(2): consistently refer to the last agrument as 'data' 2020-07-11 18:04:09 +00:00
profil.2
pselect.2
pselect.c
ptrace.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
ptrace.c
quotactl.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
rctl_add_rule.2
read.2 vfs: add restrictions to read(2) of a directory [2/2] 2020-06-04 18:17:25 +00:00
read.c
readlink.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
readv.c
reboot.2
recv.2 Update example to something people less than 40 years old have heard about. 2018-10-21 07:30:26 +00:00
recvfrom.c
recvmsg.c
rename.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
revoke.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
rfork.2 posix_spawn(3): handle potential signal issues with vfork 2019-09-25 19:22:03 +00:00
rmdir.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
rtprio.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
sched_get_priority_max.2
sched_setparam.2
sched_setscheduler.2
sched_yield.2
sctp_generic_recvmsg.2
sctp_generic_sendmsg.2
sctp_peeloff.2
select.2 man page of select(2) should mention pselect(2) 2020-06-25 12:31:05 +00:00
select.c
semctl.2 Apply the logic from r363051 to semctl(2) and __sem_base field. 2020-07-09 18:34:54 +00:00
semget.2
semop.2
send.2 Document handling of connection-mode sockets by sendto(2). 2020-04-27 16:12:32 +00:00
sendfile.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
sendmsg.c
sendto.c
setcontext.c libc: partially revert r326576 2020-04-25 14:24:54 +00:00
setfib.2
setgroups.2
setpgid.2
setregid.2
setresuid.2
setreuid.2
setsid.2
setuid.2
shm_open.2 Add an shm_rename syscall 2019-09-26 15:32:28 +00:00
shm_open.c Fix error checking in shm_create_largepage(). 2020-09-18 12:30:15 +00:00
shmat.2 Implement shmat(2) flag SHM_REMAP. 2019-01-16 05:15:57 +00:00
shmctl.2
shmget.2
shutdown.2
sigaction.2 [skip ci] document close_range(2) as async-signal-safe 2020-07-21 16:46:40 +00:00
sigaction.c
sigaltstack.2
sigfastblock.2 Add a way to manage thread signal mask using shared word, instead of syscall. 2020-02-09 11:53:12 +00:00
sigpending.2
sigprocmask.2
sigprocmask.c
sigqueue.2
sigreturn.2
sigstack.2
sigsuspend.2
sigsuspend.c
sigtimedwait.c
sigwait.2
sigwait.c
sigwaitinfo.2
sigwaitinfo.c
socket.2 Document socket control message routines for ancillary data access (CMSG_DATA). 2018-08-19 17:42:49 +00:00
socketpair.2
stat.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
stat.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
statfs.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
statfs.c Regularize my copyright notice 2019-12-04 16:56:11 +00:00
swapcontext.c libc: partially revert r326576 2020-04-25 14:24:54 +00:00
swapon.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
Symbol.map Add shm_create_largepage(3) helper for creation and configuration of 2020-09-09 22:20:36 +00:00
symlink.2 Trim some duplicate EIO descriptions. 2020-03-30 21:48:47 +00:00
sync.2
sysarch.2
syscall.2
thr_exit.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
thr_kill.2 Add HISTORY sections to document when this 2020-05-05 19:31:47 +00:00
thr_new.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
thr_self.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
thr_set_name.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
thr_suspend.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
thr_wake.2 libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
timer_create.2
timer_delete.2
timer_settime.2
trivial-vdso_tc.c
truncate.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
umask.2
undelete.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
unlink.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
utimensat.2 Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths. 2020-09-22 22:54:54 +00:00
utimes.2 Document EINTEGRITY errors for many system calls. 2020-03-30 21:44:00 +00:00
utrace.2
uuidgen.2
vadvise.c
vfork.2
wait4.c
wait6.c
wait.2 wait(2): clarify reparenting of children of the exiting process. 2019-08-11 15:47:48 +00:00
write.2 update write(2)'s iovec limit w/ info about the iosize_max_clamp sysctl... 2020-10-26 00:37:31 +00:00
write.c
writev.c