39ad46695f
time.7: Mention clock_gettime()/clock_settime() rather than [gs]ettimeofday()
...
gettimeofday() is declared obsolete by POSIX. Mention instead
the modern APIs for working with the realtime clock.
See https://bugzilla.kernel.org/show_bug.cgi?id=199049
Reported-by: Enrique Garcia <cquike@arcor.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
8f8b643d85
sysfs.5: Add brief note on /sys/fs/smackfs
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
ecf0eb2435
getrlimit.2: CAP_SYS_RESOURCE capability is required in *initial user namespace*
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
30c5868ea4
seccomp.2: Note which architectures support seccomp BPF
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
d0eae5b5e0
seccomp.2: wfix: s/prctl/ptrace/
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
f36293a2df
seccomp.2: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:36 +01:00
84819acab3
mount.2: Remove a couple of obsolete EBUSY errors
...
As far as I can tell, these EBUSY errors disappeared
with the addition of stackable mounts in Linux 2.4.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:35 +01:00
2b623a23a7
bpf.2: Update list of architectures that support JITed eBPF
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And note kernel version numbers where support is added.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:35 +01:00
5a29959a67
bpf.2: Kernel 4.15 added CONFIG_BPF_JIT_ALWAYS_ON
...
This causes the JIT compiler to be always on and
forces bpf_jit_enable to 1.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-16 08:50:25 +01:00
036b0619f7
seccomp.2: Note that execve() may change syscall numbers during life of process
...
On a multiarch/multi-ABI platform such as modern x86, each
architecture/ABI (x86-64, x32, i386)has its own syscall numbers,
which means a seccomp() filter may see different syscall numbers
over the life of the process if that process uses execve() to
execute programs that has a different architectures/ABIs.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-05 12:55:50 +01:00
a3dcaaa2ba
seccomp.2: in EXAMPLE, clearly note that x32 syscalls are >= X32_SYSCALL_BIT
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-05 12:55:50 +01:00
050f349421
mount.2: ERRORS: add EBUSY for the case of trying to stack same mount twice
...
It is not possible to consecutively stack mounts of the
same source+target inside the same mount namespace.
For example, if procfs was already mounted against /proc in
this mount namespace:
$ sudo mount -t proc none /proc
mount: /proc: none already mounted or mount point busy.
See the following code in fs/namespace.c:
/* Refuse the same filesystem on the same mount point */
err = -EBUSY;
if (path->mnt->mnt_sb == newmnt->mnt.mnt_sb &&
path->mnt->mnt_root == path->dentry)
goto unlock;
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-05 12:55:50 +01:00
4a870c6849
elf.5: SEE ALSO: add patchelf(1)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-03-02 14:34:41 +01:00
6b49df2229
mount_namespaces.7: Note another case where shared "peer groups" are formed
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-25 16:42:16 +01:00
46af719866
mount_namespaces.7: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-25 16:37:08 +01:00
a21658aad3
network_namespaces.7: Network namespaces isolate the UNIX domain abstract socket namespace
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 23:04:53 +01:00
365a54c70b
mmap.2: Clarify that when addr==NULL, address chosen by kernel is page-aligned
...
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 19:34:28 +01:00
9c8ed83514
wait.2: wait() and waitpid() block the calling thread (not process)
...
Reported-by: Robin Kuzmin <kuzmin.robin@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 19:02:50 +01:00
f3e8dec6c7
recvmmsg.2: tfix
...
recvmmsq -> recvmmsg
Signed-off-by: Mattias Andrée <maandree@kth.se>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 18:59:42 +01:00
e5a062a42f
ldconfig.8: tfix
...
Reported-by: Howard Johnson <hwj@BridgeportContractor.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 18:58:04 +01:00
89c2d890df
syscall.2: Add riscv
...
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-24 18:54:02 +01:00
aeeb48005e
user_namespaces.7: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-23 10:38:47 +01:00
1a7e08e367
namespaces.7: Note an idiosyncracy of /proc/[pid]/ns/pid_for_children
...
/proc/[pid]/ns/pid_for_children has a value only after first
child is created in PID namespace. Verified by experiment.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-21 17:31:48 +01:00
0813749503
capabilities.7: remove redundant mention of PTRACE_SECCOMP_GET_FILTER
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-21 10:38:17 +01:00
9863b9acfe
xattr.7: SEE ALSO: add selinux(8)
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-21 08:43:14 +01:00
511e0bd08b
fallocate.2: Since Linux 4.16, Btrfs supports FALLOC_FL_ZERO_RANGE
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-19 18:51:07 +01:00
517b7ac44a
makedev.3: Since glibc 2.28, <sys/types.h> no longer defines these macroa
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-19 18:39:15 +01:00
b59de1c652
execve.2: More explicitly describe effect of execve() in the opening paragraph
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-16 12:29:38 +01:00
aba7005cdc
execve.2: Note that describing execve as "executing a new process" is misleading
...
This misdescription is so common that it's worth calling it out
explicitly.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-16 12:21:09 +01:00
7747ed9789
cgroups.7: cgroup.events transitions generate POLLERR as well as POLLPRI
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-10 09:46:14 +01:00
a43454393f
group.5: SEE ALSO: add vigr(8)
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-10 07:22:56 +01:00
a77696adca
passwd.5: SEE ALSO: add vipw(8)
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-10 07:22:56 +01:00
23fadc9b53
filesystems.5: srcfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-10 07:22:53 +01:00
20894689e3
filesystems.5: Add an entry for tmpfs(5)
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-09 07:20:11 +01:00
017b630f83
filesystems.5: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-09 07:15:30 +01:00
3115293a0e
tmpfs.5: Update timestamp as marker of bad author commit
...
The author of 462a385e9a
2018-02-09 07:15:27 +01:00
20e64af8d6
ptrace.2: ffix
...
Signed-off-by: Elvira Khabirova <lineprinter@altlinux.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-09 07:02:14 +01:00
0512f57cea
atexit.3: wfix
...
Reported-by: Robin Kuzmin <kuzmin.robin@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-09 07:00:17 +01:00
e7a758e3e3
ptrace.2: Copy retval info for SECCOMP_GET_FILTER to right section
...
The "RETURN VALUE" section made a claim that was incorrect for
PTRACE_SECCOMP_GET_FILTER. Explicitly describe the behavior of
PTRACE_SECCOMP_GET_FILTER in the "RETURN VALUE" section (as
usual), but leave the now duplicate description in the section
describing PTRACE_SECCOMP_GET_FILTER, since the
PTRACE_SECCOMP_GET_FILTER section would otherwise probably become
harder to understand.
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-09 06:58:20 +01:00
f2485f5ac7
tmpfs.5: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 10:05:14 +01:00
b8847b59eb
tmpfs.5: SEE ALSO: add set_mempolicy(2)
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:43:55 +01:00
a6fedca9ab
tmpfs.5: SEE ALSO: add Documentation/vm/transhuge.txt
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:43:24 +01:00
b230d246b2
tmpfs.5: Document 'huge' mount options
...
Based on text from Documentation/vm/transhuge.txt.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:40:48 +01:00
e121158211
tmpfs.5: Document mpol=local mount option
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:40:48 +01:00
ac02e57cc8
tmpfs.5: Describe 'mpol' mount options
...
Based on text from Documentation/filesystems/tmpfs.txt.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:40:48 +01:00
a9e25912e5
tmpfs.5: Reformat 'huge' and 'mpol' mount option values as lists
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 09:40:42 +01:00
4777eb84a6
tmpfs.5: Remove reference to mount(8) for discussion of mount options
...
The mount options are now described in this page.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 08:33:41 +01:00
d745d28302
tmpfs.5: ffix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 07:32:04 +01:00
462a385e9a
tmpfs.5: Document current mount options
...
Some of this content is moved from the mount(8) man page.
Style was based on proc(5) sections.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 07:32:04 +01:00
724127aa2d
put(3): fix formatting of trailing period
...
The period after the function call is incorrectly marked with bold.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2018-02-04 07:32:04 +01:00
Michael Kerrisk