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Filename Latest commit message Latest commit date
Paolo Abeni 1859bac04f ipv6: remove from fib tree aged out RTF_CACHE dst 
The commit 2b760fcf5c ("ipv6: hook up exception table to store
dst cache") partially reverted the commit 1e2ea8ad37 ("ipv6: set
dst.obsolete when a cached route has expired").

As a result, RTF_CACHE dst referenced outside the fib tree will
not be removed until the next sernum change; dst_check() does not
fail on aged-out dst, and dst->__refcnt can't decrease: the aged
out dst will stay valid for a potentially unlimited time after the
timeout expiration.

This change explicitly removes RTF_CACHE dst from the fib tree when
aged out. The rt6_remove_exception() logic will then obsolete the
dst and other entities will drop the related reference on next
dst_check().

pMTU exceptions are not aged-out, and are removed from the exception
table only when the - usually considerably longer - ip6_rt_mtu_expires
timeout expires.

v1 -> v2:
  - do not touch dst.obsolete in rt6_remove_exception(), not needed
v2 -> v3:
  - take care of pMTU exceptions, too

Fixes: 2b760fcf5c ("ipv6: hook up exception table to store dst cache")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Wei Wang <weiwan@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-21 01:39:10 +01:00
arch
block
certs
crypto
Documentation doc: Update VRF documentation metric 2017-10-20 13:03:03 +01:00
drivers net-tun: fix panics at dismantle time 2017-10-20 13:31:26 +01:00
firmware
fs
include selinux: bpf: Add addtional check for bpf object file receive 2017-10-20 13:32:59 +01:00
init
ipc
kernel selinux: bpf: Add addtional check for bpf object file receive 2017-10-20 13:32:59 +01:00
lib dql: make dql_init return void 2017-10-19 13:33:51 +01:00
mm
net ipv6: remove from fib tree aged out RTF_CACHE dst 2017-10-21 01:39:10 +01:00
samples
scripts
security selinux: bpf: Add addtional check for bpf object file receive 2017-10-20 13:32:59 +01:00
sound
tools bpf: Add tests for eBPF file mode 2017-10-20 13:32:59 +01:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: change ENA driver maintainers email domain 2017-10-19 12:47:37 +01:00
Makefile
README

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.