symlink.2: Further fine tuning of argument names

Follow-up to f2ae6dde0c68448bec986d12fe32268a2c98bfd9
See https://sourceware.org/bugzilla/show_bug.cgi?id=16073

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
recv.2: Remove out-of-date statement that UNIX domain does not support MSG_TRUNC

Should have removed that sentence as part of
commit a25601b48b822eb1882ae336574b8d062a17e564

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
tcp.7: Fix (nontrivial) wordo in discussion of MSG_TRUNC

s/MSG_PEEK/MSG_TRUNC/

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
send.2: RETURN VALUE: these calls return number of bytes (not characters) sent

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fexecve.3: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
wctrans.3: ATTRIBUTES: Note function that is thread safe with exceptions

The function wctrans() is thread safe with exceptions.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
wctype.3: ATTRIBUTES: Note function that is thread safe with exceptions

The function wctype() is thread safe with exceptions.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
wcwidth.3: ATTRIBUTES: Note function that is thread safe with exceptions

The function wcwidth() is thread safe with exceptions.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
wmemchr.3: ATTRIBUTES: Note function that is thread-safe

The function wmemchr() is thread safe.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
wmemcmp.3: ATTRIBUTES: Note function that is thread-safe

The function wmemcmp() is thread safe.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fallocate.2: Clarify the zeroing behavior

fallocate() zeroes only space that did not previously contain
data, but leaves existing data untouched.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fallocate.2: tfix + tstamp

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
perf_event_open.2: PERF_COUNT_SW_DUMMY support

Support for the PERF_COUNT_SW_DUMMY event type was added in
Linux 3.12.

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
perf_event_open.2: Linux 3.12 adds PERF_SAMPLE_IDENTIFIER

A new PERF_SAMPLE_IDENTIFIER sample type was added in Linux 3.12.

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
perf_event_open.2: Linux 3.12 adds PERF_EVENT_IOC_ID

A new perf_event related ioctl, PERF_EVENT_IOC_ID, was added
in Linux 3.12.

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
perf_event_open.2: Linux 3.12 rdpmc/mmap

It turns out that the perf_event mmap page rdpmc/time setting was
broken, dating back to the introduction of the feature.  Due
to a mistake with a bitfield, two different values mapped to
the same feature bit.

A new somewhat backwards compatible interface was introduced
in Linux 3.12.  A much longer report on the issue can be found
here:
   https://lwn.net/Articles/567894/

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
perf_event_open.2: tstamp + white space fixes

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
mq_receive.3: msg_len must be greater than *or equal to* mq_msgsize

See https://bugzilla.kernel.org/show_bug.cgi?id=64571

Reported-by: janh <a0vhv@t-online.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
ioctl.2: 'request' argument is typed as 'unsigned long' in glibc

See https://bugzilla.kernel.org/show_bug.cgi?id=42705

Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>