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Filename Latest commit message Latest commit date
Matteo Croce b71ed54dc2 ipvs: don't show negative times in ip_vs_conn 
Since commit 500462a9de ("timers: Switch to a non-cascading wheel"),
timers duration can last even 12.5% more than the scheduled interval.

IPVS has two handlers, /proc/net/ip_vs_conn and /proc/net/ip_vs_conn_sync,
which shows the remaining time before that a connection expires.
The default expire time for a connection is 60 seconds, and the
expiration timer can fire even 4 seconds later than the scheduled time.
The expiration time is calculated subtracting jiffies to the scheduled
expiration time, and it's shown as a huge number when the timer fires late,
since both values are unsigned.

This can confuse script and tools which relies on it, like ipvsadm:

    root@mcroce-redhat:~# while ipvsadm -lc |grep SYN_RECV; do sleep 1 ; done
    TCP 00:05  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 00:04  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 00:03  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 00:02  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 00:01  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 00:00  SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:44 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:43 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:42 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:41 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:40 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000
    TCP 68719476:39 SYN_RECV    [fc00:1::1]:55732  [fc00:1::2]:8000   [fc00:2000::1]:8000

Signed-off-by: Matteo Croce <mcroce@redhat.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-16 19:36:57 +02:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
block for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
certs certs/blacklist: fix const confusion 2018-06-26 09:43:03 -07:00
crypto net: simplify sock_poll_wait 2018-07-30 09:10:25 -07:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
drivers Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
firmware
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
include jiffies: add utility function to calculate delta in ms 2018-08-16 19:36:55 +02:00
init Consolidation of Kconfig files by Christoph Hellwig. 2018-08-15 13:05:12 -07:00
ipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
LICENSES
mm Consolidation of Kconfig files by Christoph Hellwig. 2018-08-15 13:05:12 -07:00
net ipvs: don't show negative times in ip_vs_conn 2018-08-16 19:36:57 +02:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
scripts Kconfig updates for v4.19 2018-08-15 12:50:10 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
sound ASoC: Updates for v4.19 2018-08-13 12:12:31 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
usr
virt arm64 updates for 4.19 2018-08-14 16:39:13 -07:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: remap some of my email addresses to kernel.org address 2018-08-06 13:15:16 -04:00
COPYING
CREDITS
Kbuild
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
Makefile Kconfig updates for v4.19 2018-08-15 12:50:10 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.