kernel/linux.git/tools/include/linux, branch v4.17.1

radix tree test suite: fix compilation issue

2018-05-19T00:17:12+00:00

Pulled from a patch from Matthew Wilcox entitled "xarray: Add definition of struct xarray": > From: Matthew Wilcox > Signed-off-by: Matthew Wilcox https://patchwork.kernel.org/patch/10341249/ These defines fix this compilation error: In file included from ./linux/radix-tree.h:6:0, from ./linux/../../../../include/linux/idr.h:15, from ./linux/idr.h:1, from idr.c:4: ./linux/../../../../include/linux/idr.h: In function `idr_init_base': ./linux/../../../../include/linux/radix-tree.h:129:2: warning: implicit declaration of function `spin_lock_init'; did you mean `spinlock_t'? [-Wimplicit-function-declaration] spin_lock_init(&(root)->xa_lock); \ ^ ./linux/../../../../include/linux/idr.h:126:2: note: in expansion of macro `INIT_RADIX_TREE' INIT_RADIX_TREE(&idr->idr_rt, IDR_RT_MARKER); ^~~~~~~~~~~~~~~ by providing a spin_lock_init() wrapper for the v4.17-rc* version of the radix tree test suite. Link: http://lkml.kernel.org/r/20180503192430.7582-3-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler Cc: Christoph Hellwig Cc: CR, Sapthagirish Cc: Dan Williams Cc: Dave Chinner Cc: Jan Kara Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

coresight: Move to SPDX identifier

2018-04-19T15:29:41+00:00

Move CoreSight headers to the SPDX identifier. Signed-off-by: Mathieu Poirier Cc: Alexander Shishkin Cc: Greg Kroah-Hartman Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1524089118-27595-1-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo

Merge tag 'perf-core-for-mingo-4.17-20180413' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

2018-04-16T06:15:22+00:00

Pull tooling improvements and fixes from Arnaldo Carvalho de Melo: perf annotate fixes and improvements: - Allow showing offsets in more than just jump targets, use the new 'O' hotkey in the TUI, config ~/.perfconfig annotate.offset_level for it and for --stdio2 (Arnaldo Carvalho de Melo) - Use the resolved variable names from objdump disassembled lines to make them more compact, just like was already done for some instructions, like "mov", this eventually will be done more generally, but lets now add some more to the existing mechanism (Arnaldo Carvalho de Melo) perf record fixes: - Change warning for missing topology sysfs entry to debug, as not all architectures have those files, s390 being one of those (Thomas Richter) perf sched fixes: - Fix -g/--call-graph documentation (Takuya Yamamoto) perf stat: - Enable 1ms interval for printing event counters values in (Alexey Budankov) perf test fixes: - Run dwarf unwind on arm32 (Kim Phillips) - Remove unused ptrace.h include from LLVM test, sidesteping older clang's lack of support for some asm constructs (Arnaldo Carvalho de Melo) perf version fixes: - Do not print info about HAVE_LIBAUDIT_SUPPORT in 'perf version --build-options' when HAVE_SYSCALL_TABLE_SUPPORT is true, as libaudit won't be used in that case, print info about syscall_table support instead (Jin Yao) Build system fixes: - Use HAVE_..._SUPPORT used consistently (Jin Yao) - Restore READ_ONCE() C++ compatibility in tools/include (Mark Rutland) - Give hints about package names needed to build jvmti (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Restore READ_ONCE() C++ compatibility

2018-04-12T12:30:09+00:00

Our userspace defines READ_ONCE() in a way that clang doesn't like, as we have an anonymous union in which neither field is initialized. WRITE_ONCE() is fine since it initializes the __val field. For READ_ONCE() we can keep clang and GCC happy with a dummy initialization of the __c field, so let's do that. At the same time, let's split READ_ONCE() and WRITE_ONCE() over several lines for legibility, as we do in the in-kernel . Reported-by: Li Zhijian Reported-by: Sandipan Das Tested-by: Sandipan Das Signed-off-by: Mark Rutland Fixes: 6aa7de059173a986 ("locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()") Link: http://lkml.kernel.org/r/20180404163445.16492-1-mark.rutland@arm.com Signed-off-by: Arnaldo Carvalho de Melo

xarray: add the xa_lock to the radix_tree_root

2018-04-11T17:28:39+00:00

This results in no change in structure size on 64-bit machines as it fits in the padding between the gfp_t and the void *. 32-bit machines will grow the structure from 8 to 12 bytes. Almost all radix trees are protected with (at least) a spinlock, so as they are converted from radix trees to xarrays, the data structures will shrink again. Initialising the spinlock requires a name for the benefit of lockdep, so RADIX_TREE_INIT() now needs to know the name of the radix tree it's initialising, and so do IDR_INIT() and IDA_INIT(). Also add the xa_lock() and xa_unlock() family of wrappers to make it easier to use the lock. If we could rely on -fplan9-extensions in the compiler, we could avoid all of this syntactic sugar, but that wasn't added until gcc 4.6. Link: http://lkml.kernel.org/r/20180313132639.17387-8-willy@infradead.org Signed-off-by: Matthew Wilcox Reviewed-by: Jeff Layton Cc: Darrick J. Wong Cc: Dave Chinner Cc: Ryusuke Konishi Cc: Will Deacon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

perf tools: Add MEM_TOPOLOGY feature to perf data file

2018-03-08T14:30:46+00:00

Adding MEM_TOPOLOGY feature to perf data file, that will carry physical memory map and its node assignments. The format of data in MEM_TOPOLOGY is as follows: 0 - version | for future changes 8 - block_size_bytes | /sys/devices/system/memory/block_size_bytes 16 - count | number of nodes For each node we store map of physical indexes for each node: 32 - node id | node index 40 - size | size of bitmap 48 - bitmap | bitmap of memory indexes that belongs to node | /sys/devices/system/node/node/memory The MEM_TOPOLOGY could be displayed with following report command: $ perf report --header-only -I ... # memory nodes (nr 1, block size 0x8000000): # 0 [7G]: 0-23,32-69 Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180307155020.32613-8-jolsa@kernel.org [ Rename 'index' to 'idx', as this breaks the build in rhel5, 6 and other systems where this is used by glibc headers ] Signed-off-by: Arnaldo Carvalho de Melo

tools/lib/lockdep: Add missing declaration of 'pr_cont()'

2017-12-13T10:17:35+00:00

Commit: 681fbec881de ("lockdep: Use consistent printing primitives") has moved lockdep away from using printk() for printing. The commit added usage of pr_cont() which wasn't wrapped in the userspace headers, causing the following warning for the liblockdep build: ../../../kernel/locking/lockdep.c:3544:2: warning: implicit declaration of function 'pr_cont' [-Wimplicit-function-declaration] Adding an empty declaration of 'pr_cont' fixes the problem. Signed-off-by: Mengting Zhang Signed-off-by: Sasha Levin Reviewed-by: Alexander Sverdlin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20171212181644.11913-2-alexander.levin@verizon.com Signed-off-by: Ingo Molnar

tools/include: Remove ACCESS_ONCE()

2017-12-12T12:22:10+00:00

There are no longer any usersapce uses of ACCESS_ONCE(), so we can remove the definition from our userspace , which is only used by tools in the kernel directory (i.e. it isn't a uapi header). This patch removes the ACCESS_ONCE() definition, and updates comments which referred to it. At the same time, some inconsistent and redundant whitespace is removed from comments. Tested-by: Paul E. McKenney Signed-off-by: Mark Rutland Cc: Arnaldo Carvalho de Melo Cc: Joe Perches Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: apw@canonical.com Link: http://lkml.kernel.org/r/20171127103824.36526-3-mark.rutland@arm.com Signed-off-by: Ingo Molnar

kmemcheck: rip it out for real

2017-12-08T21:40:17+00:00

Commit 4675ff05de2d ("kmemcheck: rip it out") has removed the code but for some reason SPDX header stayed in place. This looks like a rebase mistake in the mmotm tree or the merge mistake. Let's drop those leftovers as well. Signed-off-by: Michal Hocko Signed-off-by: Linus Torvalds

kmemcheck: rip it out

2017-11-16T02:21:05+00:00

Fix up makefiles, remove references, and git rm kmemcheck. Link: http://lkml.kernel.org/r/20171007030159.22241-4-alexander.levin@verizon.com Signed-off-by: Sasha Levin Cc: Steven Rostedt Cc: Vegard Nossum Cc: Pekka Enberg Cc: Michal Hocko Cc: Eric W. Biederman Cc: Alexander Potapenko Cc: Tim Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds