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16124 Commits

Author SHA1 Message Date
David Turner 41185b1261 cpuset.7: tfix 2016-08-17 17:07:32 +12:00
Michael Kerrisk bf525e9050 mmap.2: Small improvement to description of MAP_SHARED 
See https://sourceware.org/bugzilla/show_bug.cgi?id=6887

Reported-by: Siward de Groot <siward@wanadoo.nl>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-17 08:09:28 +12:00
Michael Kerrisk 7b032b2398 open.2: Minor layout fix in ERRORS 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-17 08:09:28 +12:00
Michael Kerrisk 61775a254e fifo.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-17 08:09:28 +12:00
Michael Kerrisk f62ddda8a4 fcntl.2: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-17 08:09:28 +12:00
Michael Kerrisk aa30354a3b select_tut.2: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk a686506533 ptrace.2: ffix 
Reported-by: Sam Varshavchik <mrsam@courier-mta.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Peter Wu 3c3d1f83f9 select_tut.2: fix issues in example 
Avoid closing cfd if it is -1. Initialize buf1_avail, etc. to avoid
uninitialized memory access in the event that accept() fails. Remove
redundant setting of nfds. Fix tabs with spaces.

Do not try to read/write from/to file descriptors once an existing
connection is overwritten, the select() states are stale now.
Avoid writing zero bytes from the buffer and then closing the fd.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
 2016-08-12 07:14:42 +12:00
Ray Bellis 519303a6a4 resolver.3: Correct arguments to res_ninit(res_state statep) 
The man page for res_ninit() incorrectly says that it takes no
parameters, when in fact (and indeed according to the same page
further down) it has to take a res_state parameter.
 2016-08-12 07:14:42 +12:00
Michael Kerrisk a9672faabc fmemopen.3: Remove bogus suggestion to use setbuffer() 
As Rich Felker comments:

    The stdio buffer associated with the fmemopen-obtained FILE,
    and the output memory buffer into which it's writing, are
    conceptually distinct entities, and there is no reason to
    expect reasonable results if you modify the contents of a
    setvbuf-associated buffer through other means while it's
    associated with a FILE.

See http://stackoverflow.com/questions/38854163/using-rewind-on-a-file-opened-with-fmemopen

Reported-by: Rich Felker <dalias@libc.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Jann Horn 423cb9f7ff mmap.2: Describe treatment of 'offset' for MAP_ANONYMOUS 
The manpage claimed that the offset argument is ignored, and when
I interpreted that as "I don't need to set that register when
doing the syscall", I got failures. I was able to spot two reasons
for that:

What I probably ran into:
At least on x86-64, sys_mmap (in arch/x86/kernel/sys_x86_64.c)
always checks that the offset is page-aligned, even for
MAP_ANONYMOUS.

Another one, could probably trigger on 32-bit x86:
In do_mmap(), there is a check to ensure that pgoff together with
the allocation length won't cause an overflow, even for
MAP_ANONYMOUS.

Document that userspace should pass in zero, since that's
probably what everyone is doing already. (It would also be
possible to describe the constraints on the offset more
carefully, but zero works, and nobody should need to pass in
anything else.)

Signed-off-by: Jann Horn <jann@thejh.net>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk 1bceaaee94 glob.7: Clarify that syntactically incorrect patterns are left unchanged 
Reported-by: Arnaud Gaillard <arnaud.mgaillard@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk b6264ec7cd syscall.2: Eliminate groff "cannot adjust line" warnings 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk 2a69e8175e ascii.7: Eliminate groff "cannot adjust line" warnings 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk 999f6d03db mouse.4: Eliminate groff "cannot adjust line" warnings 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-12 07:14:42 +12:00
Michael Kerrisk 3fd5b1e7d2 wait.2: Remove erroneous statement that waitpid() is implemented via wait4() 
There is a fallback to wait4(), but only if the kernel does
not provide a waitpid() system call.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 3e752456ba gettid.2: Minor fix: remove self-reference from SEE ALSO 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 760fc1e8f3 pldd.1: Note gdb(1) command that can be used as a replacement for pldd 
Taken from Carlos O'Donnell's suggestion in
https://sourceware.org/bugzilla/show_bug.cgi?id=18035#c2

Reported-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 25a306f113 pldd.1: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Jakub Wilk ae34c5215d proc.5: tfix 
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk ecc9535d8e proc.5: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk d9e64b422f fsync.2: SEE ALSO: add pwritev(2) 
Since Linux 4.7, pwritev() has flags related to I/O
integrity completion.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 4ad958e183 proc.5: Document /proc/meminfo '+ShmemHugePages' and 'ShmemPmdMapped' fields 
New in Linux 4.8

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk a4680ab51d user_namespaces.7: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk afdd425e68 towlower.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 9f7a5b0e57 sigset.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 119a385181 resolver.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk fca8d7eb25 readdir_r.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk ab57579b8b ioctl_fat.2: f 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 95183c2e0a dlinfo.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 9290904064 semop.2: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk 84e984416e set_thread_area.2: Add get_thread_area() to NAME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:16 +10:00
Michael Kerrisk d1e268dbb7 readlink.2: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk a467eeaa1d getrlimit.2: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk cc849b73d1 readv.2: Add preadv2() and pwritev2() to NAME line 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 1ed05a209a ioctl_fat.2: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk ba4add12fd mq_overview.7: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk c307aecd09 mount_namespaces.7: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk e664450b01 cgroup_namespaces.7: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk d9c7f166c6 repertoiremap.5: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 69f351b0bc loop.4: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 53c9ce2def towupper.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 909eb7e97a towlower.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk bdec6fb099 strerror.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 84f6b0672e sigvec.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 7c8c6f2da9 pthread_rwlockattr_setkind_np.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 9c78ec5b5c posix_spawn.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 355b6107b4 ntp_gettime.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 2443152c7b nextup.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk ec0f3c469d isalpha.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00