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Qiujun Huang 57ebe91029 ring-buffer: Return 0 on success from ring_buffer_resize() commit `0a1754b2a9` upstream. We don't need to check the new buffer size, and the return value had confused resize_buffer_duplicate_size(). ... ret = ring_buffer_resize(trace_buf->buffer, per_cpu_ptr(size_buf->data,cpu_id)->entries, cpu_id); if (ret == 0) per_cpu_ptr(trace_buf->data, cpu_id)->entries = per_cpu_ptr(size_buf->data, cpu_id)->entries; ... Link: https://lkml.kernel.org/r/20201019142242.11560-1-hqjagain@gmail.com Cc: stable@vger.kernel.org Fixes: `d60da506cb` ("tracing: Add a resize function to make one buffer equivalent to another buffer") Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-11-05 11:08:53 +01:00
arch	ia64: fix build error with !COREDUMP	2020-11-05 11:08:52 +01:00
block	Revert "block: ratelimit handle_bad_sector() message"	2020-11-05 11:08:35 +01:00
certs	export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()	2018-08-22 23:21:44 +09:00
crypto	crypto: algif_skcipher - EBUSY on aio should be an error	2020-10-29 09:55:01 +01:00
Documentation	media: videodev2.h: RGB BT2020 and HSV are always full range	2020-11-05 11:08:40 +01:00
drivers	drm/amd/display: Don't invoke kgdb_breakpoint() unconditionally	2020-11-05 11:08:52 +01:00
firmware	Fix built-in early-load Intel microcode alignment	2020-01-23 08:21:29 +01:00
fs	9P: Cast to loff_t before multiplying	2020-11-05 11:08:53 +01:00
include	NFSv4.2: support EXCHGID4_FLAG_SUPP_FENCE_OPS 4.2 EXCHANGE_ID flag	2020-11-05 11:08:51 +01:00
init	printk: reduce LOG_BUF_SHIFT range for H8300	2020-11-05 11:08:41 +01:00
ipc	ipc/util.c: sysvipc_find_ipc() incorrectly updates position index	2020-05-20 08:18:40 +02:00
kernel	ring-buffer: Return 0 on success from ring_buffer_resize()	2020-11-05 11:08:53 +01:00
lib	sgl_alloc_order: fix memory leak	2020-11-05 11:08:45 +01:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary	2020-10-29 09:55:15 +01:00
net	libceph: clear con->out_msg on Policy::stateful_server faults	2020-11-05 11:08:53 +01:00
samples	misc: vop: add round_up(x,4) for vring_size to avoid kernel panic	2020-10-30 10:38:29 +01:00
scripts	scripts/setlocalversion: make git describe output more reliable	2020-11-05 11:08:31 +01:00
security	evm: Check size of security.evm before using it	2020-11-05 11:08:34 +01:00
sound	ALSA: seq: oss: Avoid mutex lock for a long-time ioctl	2020-10-29 09:55:11 +01:00
tools	perf python scripting: Fix printable strings in python3 scripts	2020-11-05 11:08:52 +01:00
usr	initramfs: restore default compression behavior	2020-04-13 10:44:59 +02:00
virt	KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch	2020-10-01 13:14:54 +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
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	Documentation/llvm: add documentation on building w/ Clang/LLVM	2020-09-26 18:01:31 +02:00
Makefile	Linux 4.19.154	2020-10-30 10:38:33 +01:00
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.