"/bin/pwd" happens to work with the GNU coreutils implementation,
which has -P as the default, contrary to POSIX requirements.
Use "pwd -P" instead, which is shorter, easier to type, and should
work everywhere.
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
CAP_SYS_RESOURCE also allows overriding /proc/sys/fs/mqueue/msg_max
and /proc/sys/fs/mqueue/msgsize_max.
Signed-off-by: Saikiran Madugula <hummerbliss@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Clarify that it is recursive read locks on the read-write lock
that make it difficult to implement
PTHREAD_RWLOCK_PREFER_WRITER_NP.
Update the libc-alpha URL and provide the URL to the POSIX wording
that is quoted in the comment.
Reported-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Close the PID file descriptor in the example program, to hint to
the reader that like every other kind of file descriptor, a PID FD
should be closed.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '--' to '\-\-' for options and '--' between words to '\(em'
(em-dash).
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
msg_iovlen is incorrectly typed (according to POSIX) in addition
to msg_controllen, but unlike msg_controllen, this wasn't
mentioned for msg_iovlen.
msg_iovlen being incorrectly typed hasn't been reported as a GCC
bug, but there's no point since it is caused by the same
underlying issue.
Sources: POSIX.1-2017 (<sys/socket.h>), Linux
(include/linux/socket.h)
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
See kernel commit 8823c079ba7136dc1948d6f6dcb5f8022bde438e
and the in fs/namespace.c::do_loopback():
err = -EINVAL;
if (mnt_ns_loop(old_path.dentry))
goto out;
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Change '-' to '\(en' for a range.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Change '-' to '\-' for the prefix of names to indicate an option.
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
cgroups-v1/v2 documentation got moved to the "admin-guide" subfolder
and converted from .txt files to .rst
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Update description of permissions for port-mapped I/O set
per-thread and not per-process. Mention that iopl() can not
disable interrupts since Linux 5.5 anymore and is in general
deprecated and only provided for legacy X servers.
See https://bugzilla.kernel.org/show_bug.cgi?id=205317
Reported-by: victorm007@yahoo.com
Signed-off-by: Thomas Piekarski <t.piekarski@deloquencia.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Jakub Wilk