Michael Kerrisk
3d4433fe17
fanotify.7: tfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:46:40 +02:00
Michael Kerrisk
c00ff2dc16
fanotify.7: Add subheading for /proc/PID/fdinfo
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:46:16 +02:00
Michael Kerrisk
679a078389
fanotify.7: Remove a sentence from ETXTBSY description
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No file descriptor is actually created...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:51 +02:00
Michael Kerrisk
68bcc008cc
fanotify.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:51 +02:00
Michael Kerrisk
72b9aa964c
fanotify.7: Minor wording fix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:51 +02:00
Michael Kerrisk
49894a5a8f
fanotify.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
d7d24d40ec
fanotify.7: Add sentence introducing fanotify_response fields
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
f897ec112f
fanotify.7: Minor rewording of FAN_CLOSE
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
f2ac23e758
fanotify.7: Add introductory sentence for explanation of fanotify_event_metadata
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
ad02dd1f87
fanotify.7: Add a subheading for reading events
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
75c3e3bd6b
fanotify.7: Move the text on event merging
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Place it near the discussion of the events bit mask.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
2932564490
fanotify.7: Rework text on event bits a little
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
c9120323bf
fanotify.7: Rework and enhance text introducing read() and events
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
6c693f6de5
fanotify.7: Move text describing fanotify_mark()
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
488cdd819c
fanotify.7: Move epoll/poll/select discussion to its own subsection
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
7fc5dd9466
fanotify.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:50 +02:00
Michael Kerrisk
be8ba5d879
fanotify.7: Rework text on close()
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Closing the fanotify FD was discussed in two places.
Merge them into one location, and discard redundant text.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:44:40 +02:00
Michael Kerrisk
d3471a460b
fanotify.7: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
88145b29e7
fanotify.7: Add some subheadings to structure the DESCRIPTION
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
397ff1fd3f
fanotify.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
02a18e0f7f
fanotify.7: Reword FAN_CLOSE_NOWRITE text
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
9d76d63060
fanotify.7: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
8d2ee5c85d
fanotify.7: spfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:40 +02:00
Michael Kerrisk
815df19b29
fanotify.7: Declare handle_events() in example code as 'static'
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To avoid warning "no previous prototype for..."
when compiling with "-Wmissing-prototypes"
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:11 +02:00
Michael Kerrisk
b34cbc4530
fanotify.7: Change a comment in example program
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:10 +02:00
Michael Kerrisk
def5c668e8
fanotify.7: Merge two printf() calls
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:10 +02:00
Michael Kerrisk
48fd9fe08a
fanotify.7: Change a comment in example code
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:43:10 +02:00
Michael Kerrisk
8cc4f7a94e
fanotify.7: Remove unneeded close() calls
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The fanotify file descriptor will be implicitly closed by process
termination, and in any case it was not closed explicitly in all
process termination paths.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 11:42:57 +02:00
Michael Kerrisk
f776794974
fanotify.7: Minor tweaks to example program
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 10:00:53 +02:00
Michael Kerrisk
ddb112c281
fanotify.7: Minor fixes
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 09:49:19 +02:00
Michael Kerrisk
6d8c5d015d
fanotify.7: Minor fixes
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 09:20:45 +02:00
Michael Kerrisk
d9b086d625
fanotify.7: Mention inotify(7) in opening paragraph
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 08:06:41 +02:00
Michael Kerrisk
7ea227bdde
fanotify.7: Minor fixes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 08:06:41 +02:00
Heinrich Schuchardt
f75d27e6b0
inotify.7: SEE ALSO: add fanotify(7)
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Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 07:57:41 +02:00
Heinrich Schuchardt
c200b422df
fanotify_mark.2: New page documenting fanotify_mark(2)
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Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 07:56:49 +02:00
Heinrich Schuchardt
3e6ebb33e5
fanotify_init.2: New page documenting fanotify_init(2)
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Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 07:56:02 +02:00
Heinrich Schuchardt
597aaea2f7
fanotify.7: New page providing overview of the fanotify API
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Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 07:55:05 +02:00
Stefan Puiu
a29edaeef6
packet.7: Status in PACKET_RX_RING is actually a bit mask
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Stefan:
I'm playing with the PACKET_RX_RING option to packet sockets and I
noticed that the status field from the tpacket_hdr structures
inside the mmaped buffer is actually a bit mask. I'm testing with
4Gbps traffic rates and sometimes I get status=5. I'm using Ubuntu
12.04 with a 3.8.0-29 kernel, and at least from the code (I got it
using "sudo apt-get source linux-image-$(uname -r)") it seems the
5 means TP_STATUS_USER | TP_STATUS_LOSING. The 3.8.0 kernel code
has this line in tpacket_rcv():
/*
* LOSING will be reported till you read the stats,
* because it's COR - Clear On Read.
* Anyways, moving it for V1/V2 only as V3 doesn't need this
* at packet level.
*/
if (po->stats.tp_drops)
status |= TP_STATUS_LOSING;
Daniel:
Now to your question. It can easily be seen from the if_packet.h header
file http://lingrok.org/xref/linux-net-next/include/uapi/linux/if_packet.h#93
that TP_STATUS_* are individual bits that are set in tp_status field.
TP_STATUS_USER simply means a frame was received in the ring and is
ready for user space to be processed. If the field also indicates
TP_STATUS_LOSING then this means that there were packet drops in the
rx ring itself so a user knows it didn't get all traffic. This bit
is being reset on getsockopt() when querying PACKET_STATISTICS,
otherwise it stays. Drops occur when the ring buffer was not emptied
fast enough by user space (so no free slot with TP_STATUS_KERNEL), e.g.
due to high incoming traffic load. However, the current frame you're
reading that has TP_STATUS_USER|TP_STATUS_LOSING is fine by itself.
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Carsten Andrich <carsten.andrich@tu-ilmenau.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-24 11:52:39 +02:00
Michael Kerrisk
84f573db60
rename.2: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:55:44 +02:00
Michael Kerrisk
8f60952e38
rename.2: Improve wording of renameat2() ENOENT error
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:55:38 +02:00
Michael Kerrisk
5c1517fa0a
rename.2: Improve description or renameat2() EINVAL 'flags' error
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:45 +02:00
Michael Kerrisk
4e6c4ab2ff
rename.2: Add CONFORMING TO and VERSIONS for renameat2()
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:45 +02:00
Miklos Szeredi
ab99efddee
rename.2: Document renameat2()
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Some light edits to this patch by mtk.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:45 +02:00
Michael Kerrisk
bf253d9b61
syscalls.2: Add renameat2()
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And bump kernel version.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:45 +02:00
Michael Kerrisk
11b520ed8f
alloc_hugepages.2, futex.2, vm86.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:01 +02:00
Michael Kerrisk
82e683e6bd
msync.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:01 +02:00
Peter Schiffer
f6374cc2cd
set_mempolicy.2: wfix
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Hi Michael,
sending minor wording fix for set_mempolicy(2) man page.
peter
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:00 +02:00
Michael Kerrisk
ab80da6e17
packet.7: SEE ALSO: add /tools/testing/selftests/net/psock_tpacket.c
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Reported-by: Carsten Andrich <carsten.andrich@tu-ilmenau.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:00 +02:00
Michael Kerrisk
3d4d5a0635
packet.7: Minor tweak to Carsten Andrich's patch
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:00 +02:00
Michael Kerrisk
896333c57e
packet.7: Minor fixes to Carsten Andrich's patch
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-23 20:40:00 +02:00