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Björn Töpel 044175a067 xsk: fix umem memory leak on cleanup 
When the umem is cleaned up, the task that created it might already be
gone. If the task was gone, the xdp_umem_release function did not free
the pages member of struct xdp_umem.

It turned out that the task lookup was not needed at all; The code was
a left-over when we moved from task accounting to user accounting [1].

This patch fixes the memory leak by removing the task lookup logic
completely.

[1] https://lore.kernel.org/netdev/20180131135356.19134-3-bjorn.topel@gmail.com/

Link: https://lore.kernel.org/netdev/c1cb2ca8-6a14-3980-8672-f3de0bb38dfd@suse.cz/
Fixes: c0c77d8fb7 ("xsk: add user memory registration support sockopt")
Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-03-16 01:27:51 +01:00
arch ARM: dts: stm32: Add Ethernet support on stm32h7 SOC and activate it for eval and disco boards 2019-03-08 11:48:19 -08:00
block
certs
crypto
Documentation dt-bindings: net: stmmac: remove syscfg clock property 2019-03-08 11:48:19 -08:00
drivers vxlan: test dev->flags & IFF_UP before calling gro_cells_receive() 2019-03-10 11:05:52 -07:00
firmware
fs
include xsk: fix umem memory leak on cleanup 2019-03-16 01:27:51 +01:00
init
ipc
kernel bpf: Fix bpf_tcp_sock and bpf_sk_fullsock issue related to bpf_sk_release 2019-03-13 12:04:35 -07:00
lib
LICENSES
mm
net xsk: fix umem memory leak on cleanup 2019-03-16 01:27:51 +01:00
samples bpf: hbm: fix spelling mistake "deault" -> "default" 2019-03-07 10:35:00 +01:00
scripts
security
sound
tools tools: bpf: synchronise BPF UAPI header with tools 2019-03-14 14:03:21 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS appletalk: Add atalk.h header files to MAINTAINERS file 2019-03-06 10:46:43 -08:00
Makefile
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.

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.