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Andres Freund 3efca0c142 perf c2c: Fix return type for histogram sorting comparision functions commit `c1c8013ec3` upstream. Commit `722ddfde36` ("perf tools: Fix time sorting") changed - correctly so - hist_entry__sort to return int64. Unfortunately several of the builtin-c2c.c comparison routines only happened to work due the cast caused by the wrong return type. This causes meaningless ordering of both the cacheline list, and the cacheline details page. E.g a simple: perf c2c record -a sleep 3 perf c2c report will result in cacheline table like ================================================= Shared Data Cache Line Table ================================================= # # ------- Cacheline ---------- Total Tot - LLC Load Hitm - - Store Reference - - Load Dram - LLC Total - Core Load Hit - - LLC Load Hit - # Index Address Node PA cnt records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rmt # ..... .............. .... ...... ....... ...... ..... ..... ... .... ..... ...... ...... .... ...... ..... ..... ..... ... .... ....... 0 0x7f0d27ffba00 N/A 0 52 0.12% 13 6 7 12 12 0 0 7 14 40 4 16 0 0 0 1 0x7f0d27ff61c0 N/A 0 6353 14.04% 1475 801 674 779 779 0 0 718 1392 5574 1299 1967 0 115 0 2 0x7f0d26d3ec80 N/A 0 71 0.15% 16 4 12 13 13 0 0 12 24 58 1 20 0 9 0 3 0x7f0d26d3ec00 N/A 0 98 0.22% 23 17 6 19 19 0 0 6 12 79 0 40 0 10 0 i.e. with the list not being ordered by Total Hitm. Fixes: `722ddfde36` ("perf tools: Fix time sorting") Signed-off-by: Andres Freund <andres@anarazel.de> Tested-by: Michael Petlan <mpetlan@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org # v3.16+ Link: http://lore.kernel.org/lkml/20200109043030.233746-1-andres@anarazel.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2020-02-04 18:18:01 +00:00
arch	KVM: PPC: Book3S PR: Fix -Werror=return-type build failure	2020-02-04 18:18:01 +00:00
block	block: allow partitions on host aware zone devices	2020-01-26 09:59:08 -07:00
certs	certs: Add wrapper function to check blacklisted binary hash	2019-11-12 12:25:50 +11:00
crypto	crypto: pcrypt - Fix user-after-free on module unload	2020-02-01 09:33:00 +00:00
Documentation	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-01-25 14:19:32 -08:00
drivers	power/supply: ingenic-battery: Don't change scale if there's only one	2020-02-01 09:33:00 +00:00
fs	gfs2: Another gfs2_find_jhead fix	2020-02-04 18:18:01 +00:00
include	udp: segment looped gso packets correctly	2020-02-01 09:32:58 +00:00
init	Revert "um: Enable CONFIG_CONSTRUCTORS"	2020-02-01 09:33:00 +00:00
ipc	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
kernel	Revert "um: Enable CONFIG_CONSTRUCTORS"	2020-02-01 09:33:00 +00:00
lib	lib/test_bitmap: correct test data offsets for 32-bit	2020-02-04 18:18:01 +00:00
LICENSES	LICENSES: Rename other to deprecated	2019-05-03 06:34:32 -06:00
mm	mm: memcg/slab: call flush_memcg_workqueue() only if memcg workqueue is valid	2020-01-13 18:19:02 -08:00
net	rxrpc: Fix use-after-free in rxrpc_receive_data()	2020-02-01 09:32:59 +00:00
samples	samples/seccomp: Zero out members based on seccomp_notif_sizes	2020-01-02 13:03:39 -08:00
scripts	ARM fixes for 5.5:	2020-01-25 14:32:51 -08:00
security	+ Bug fixes	2020-01-04 19:28:30 -08:00
sound	sound fixes for 5.5-rc7	2020-01-17 08:38:35 -08:00
tools	perf c2c: Fix return type for histogram sorting comparision functions	2020-02-04 18:18:01 +00:00
usr	gen_initramfs_list.sh: fix 'bad variable name' error	2020-01-04 00:00:48 +09:00
virt	PPC KVM fix for 5.5	2019-12-22 13:18:15 +01:00
.clang-format	clang-format: Update with the latest for_each macro list	2019-08-31 10:00:51 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	modpost: dump missing namespaces into a single modules.nsdeps file	2019-11-11 20:10:01 +09:00
.mailmap	MAINTAINERS: update my email address	2020-01-11 14:33:39 -08:00
COPYING	COPYING: use the new text with points to the license files	2018-03-23 12:41:45 -06:00
CREDITS	Linux 5.4-rc4	2019-10-29 04:43:29 -06:00
Kbuild	kbuild: do not descend to ./Kbuild when cleaning	2019-08-21 21:03:58 +09:00
Kconfig	docs: kbuild: convert docs to ReST and rename to *.rst	2019-06-14 14:21:21 -06:00
MAINTAINERS	tipc: change maintainer email address	2020-01-25 10:18:02 +01:00
Makefile	Linux 5.5.1	2020-02-01 09:33:01 +00:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -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.

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.