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Greg Hackmann bf93f26d49 UPSTREAM: dma-buf: add DMA_BUF_SET_NAME ioctls 
This patch adds complimentary DMA_BUF_SET_NAME  ioctls, which lets
userspace processes attach a free-form name to each buffer.

This information can be extremely helpful for tracking and accounting
shared buffers.  For example, on Android, we know what each buffer will
be used for at allocation time: GL, multimedia, camera, etc.  The
userspace allocator can use DMA_BUF_SET_NAME to associate that
information with the buffer, so we can later give developers a
breakdown of how much memory they're allocating for graphics, camera,
etc.

Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Chenbo Feng <fengc@google.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613223408.139221-3-fengc@google.com
(cherry picked from commit bb2bb90304)

Bug: 135613055
Test: run dmabufinfo_test.cpp and check the name is showed up in
      /proc/pid/fd

Change-Id: Ib7f227b5e730c7ecfade14ad596ba3889eab1b0b
2019-08-19 23:08:58 +00:00
arch ANDROID: Remove unused cuttlefish build infra 2019-08-19 14:41:39 +00:00
block This is the 4.19.64 stable release 2019-08-04 09:37:11 +02:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto This is the 4.19.61 stable release 2019-07-26 10:31:53 +02:00
Documentation This is the 4.19.65 stable release 2019-08-06 20:08:18 +02:00
drivers UPSTREAM: dma-buf: add DMA_BUF_SET_NAME ioctls 2019-08-19 23:08:58 +00:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs f2fs: fix build error on android tracepoints 2019-08-17 00:18:14 +00:00
include UPSTREAM: dma-buf: add DMA_BUF_SET_NAME ioctls 2019-08-19 23:08:58 +00:00
init UPSTREAM: Make anon_inodes unconditional 2019-08-12 13:36:37 -04:00
ipc This is the 4.19.65 stable release 2019-08-06 20:08:18 +02:00
kernel ANDROID: sched/fair: Cap transient util in stune 2019-08-16 14:46:14 +01:00
lib This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
net This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
samples samples, bpf: suppress compiler warning 2019-07-14 08:11:04 +02:00
scripts This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
security This is the 4.19.65 stable release 2019-08-06 20:08:18 +02:00
sound ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457) 2019-08-16 10:12:52 +02:00
tools This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: Fix leak vCPU's VMCS value into other pCPU 2019-08-16 10:12:53 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
abi_gki_aarch64.xml ANDROID: Update the expected ABI 2019-08-19 19:04:48 +00:00
build.config.gki.aarch64 Adding GKI Ramdisk to gki config 2019-08-14 18:17:18 +00:00
build.config.gki.x86_64 Adding GKI Ramdisk to gki config 2019-08-14 18:17:18 +00:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS platform/x86: Add Intel AtomISP2 dummy / power-management driver 2019-04-20 09:16:02 +02:00
Makefile This is the 4.19.67 stable release 2019-08-16 11:27:10 +02:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

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.