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Taehee Yoo 73ab1cb2de umh: add exit routine for UMH process
A UMH process which is created by the fork_usermode_blob() such as
bpfilter needs to release members of the umh_info when process is
terminated.
But the do_exit() does not release members of the umh_info. hence module
which uses UMH needs own code to detect whether UMH process is
terminated or not.
But this implementation needs extra code for checking the status of
UMH process. it eventually makes the code more complex.

The new PF_UMH flag is added and it is used to identify UMH processes.
The exit_umh() does not release members of the umh_info.
Hence umh_info->cleanup callback should release both members of the
umh_info and the private data.

Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-11 18:05:40 -08:00
arch Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
block for-4.21/block-20190102 2019-01-02 18:49:58 -08:00
certs
crypto
Documentation bpf, doc: update design qa to reflect kern_version requirement 2019-01-07 15:52:00 -08:00
drivers isdn: i4l: isdn_tty: Fix some concurrency double-free bugs 2019-01-11 17:56:47 -08:00
firmware
fs Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
include umh: add exit routine for UMH process 2019-01-11 18:05:40 -08:00
init
ipc
kernel umh: add exit routine for UMH process 2019-01-11 18:05:40 -08:00
lib Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
LICENSES
mm Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2019-01-11 12:51:49 -08:00
samples samples: bpf: user proper argument index 2019-01-10 15:54:47 +01:00
scripts
security Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
sound Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
tools tools/bpf: fix bpftool map dump with bitfields 2019-01-11 10:40:54 +01:00
usr
virt Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'for-linus-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2019-01-02 18:39:22 -08:00
Makefile
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.