linux-toradex.git/tools, branch v5.11-rc2

selftests/vm: fix building protection keys test

2020-12-29T23:36:49+00:00

Commit d8cbe8bfa7d ("tools/testing/selftests/vm: fix build error") tried
to include a ARCH check for powerpc, however ARCH is not defined in the
Makefile before including lib.mk.  This makes test building to skip on
both x86 and powerpc.

Fix the arch check by replacing it using machine type as it is already
defined and used in the test.

Link: https://lkml.kernel.org/r/20201215100402.257376-1-harish@linux.ibm.com
Fixes: d8cbe8bfa7d ("tools/testing/selftests/vm: fix build error")
Signed-off-by: Harish 
Reviewed-by: Sandipan Das 
Cc: Shuah Khan 
Cc: Sandipan Das 
Cc: John Hubbard 
Cc: Dave Hansen 
Cc: Kirill A. Shutemov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-12-27T17:08:23+00:00

Pull objtool fix from Ingo Molnar:
 "Fix a segfault that occurs when built with Clang"

* tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix seg fault with Clang non-section symbols

Merge tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

2020-12-25T19:07:34+00:00

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Refactor 'perf stat' per CPU/socket/die/thread aggregation fixing use
   cases in ARM machines.

 - Fix memory leak when synthesizing SDT probes in 'perf probe'.

 - Update kernel header copies related to KVM, epol_pwait. msr-index and
   powerpc and s390 syscall tables.

* tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (24 commits)
  perf probe: Fix memory leak when synthesizing SDT probes
  perf stat aggregation: Add separate thread member
  perf stat aggregation: Add separate core member
  perf stat aggregation: Add separate die member
  perf stat aggregation: Add separate socket member
  perf stat aggregation: Add separate node member
  perf stat aggregation: Start using cpu_aggr_id in map
  perf cpumap: Drop in cpu_aggr_map struct
  perf cpumap: Add new map type for aggregation
  perf stat: Replace aggregation ID with a struct
  perf cpumap: Add new struct for cpu aggregation
  perf cpumap: Use existing allocator to avoid using malloc
  perf tests: Improve topology test to check all aggregation types
  perf tools: Update s390's syscall.tbl copy from the kernel sources
  perf tools: Update powerpc's syscall.tbl copy from the kernel sources
  perf s390: Move syscall.tbl check into check-headers.sh
  perf powerpc: Move syscall.tbl check to check-headers.sh
  tools headers UAPI: Synch KVM's svm.h header with the kernel
  tools kvm headers: Update KVM headers from the kernel sources
  tools headers UAPI: Sync KVM's vmx.h header with the kernel sources
  ...

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2020-12-24T20:06:46+00:00

Pull virtio updates from Michael Tsirkin:

 - vdpa sim refactoring

 - virtio mem: Big Block Mode support

 - misc cleanus, fixes

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (61 commits)
  vdpa: Use simpler version of ida allocation
  vdpa: Add missing comment for virtqueue count
  uapi: virtio_ids: add missing device type IDs from OASIS spec
  uapi: virtio_ids.h: consistent indentions
  vhost scsi: fix error return code in vhost_scsi_set_endpoint()
  virtio_ring: Fix two use after free bugs
  virtio_net: Fix error code in probe()
  virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
  tools/virtio: add barrier for aarch64
  tools/virtio: add krealloc_array
  tools/virtio: include asm/bug.h
  vdpa/mlx5: Use write memory barrier after updating CQ index
  vdpa: split vdpasim to core and net modules
  vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov
  vdpa_sim: make vdpasim->buffer size configurable
  vdpa_sim: use kvmalloc to allocate vdpasim->buffer
  vdpa_sim: set vringh notify callback
  vdpa_sim: add set_config callback in vdpasim_dev_attr
  vdpa_sim: add get_config callback in vdpasim_dev_attr
  vdpa_sim: make 'config' generic and usable for any device type
  ...

perf probe: Fix memory leak when synthesizing SDT probes

2020-12-24T13:52:10+00:00

The argv_split() function must be paired with argv_free(), else we must
keep a reference to the argv array received or do the freeing ourselves,
in synthesize_sdt_probe_command() we were simply leaking that argv[]
array.

Fixes: 3b1f8311f6963cd1 ("perf probe: Add sdt probes arguments into the uprobe cmd string")
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Alexandre Truong 
Cc: Alexis Berlemont 
Cc: He Zhe 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: John Garry 
Cc: Mark Rutland 
Cc: Masami Hiramatsu 
Cc: Mathieu Poirier 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Sumanth Korikkar 
Cc: Thomas Richter 
Cc: Will Deacon 
Link: https://lore.kernel.org/r/20201224135139.GF477817@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf stat aggregation: Add separate thread member

2020-12-24T13:05:28+00:00

A separate field isn't strictly required. The core field could be
re-used for thread IDs as a single field was used previously.

But separating them will avoid confusion and catch potential errors
where core IDs are read as thread IDs and vice versa.

Also remove the placeholder id field which is now no longer used.

Signed-off-by: James Clark 
Acked-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: John Garry 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Thomas Richter 
Link: https://lore.kernel.org/r/20201126141328.6509-13-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf stat aggregation: Add separate core member

2020-12-24T13:05:25+00:00

Add core as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark 
Acked-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: John Garry 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Thomas Richter 
Link: https://lore.kernel.org/r/20201126141328.6509-12-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf stat aggregation: Add separate die member

2020-12-24T13:05:19+00:00

Add die as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark 
Acked-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: John Garry 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Thomas Richter 
Link: https://lore.kernel.org/r/20201126141328.6509-11-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf stat aggregation: Add separate socket member

2020-12-24T13:05:04+00:00

Add socket as a separate member so that it doesn't have to be packed
into the int value.

When the socket ID was larger than 8 bits the output appeared corrupted
or incomplete.

For example, here on ThunderX2 'perf stat' reports a socket of -1 and an
invalid die number:

  ./perf stat -a --per-die
  The socket id number is too big.

  Performance counter stats for 'system wide':

  S-1-D255       128             687.99 msec cpu-clock                 #   57.240 CPUs utilized
  ...
  S36-D0         128             842.34 msec cpu-clock                 #   70.081 CPUs utilized
  ...

And with --per-core there is an entry with an invalid core ID:

  ./perf stat record -a --per-core
  The socket id number is too big.

  Performance counter stats for 'system wide':
  S-1-D255-C65535     128             671.04 msec cpu-clock                 #   54.112 CPUs utilized
  ...
  S36-D0-C0           4              28.27 msec cpu-clock                 #    2.279 CPUs utilized
  ...

This fixes the "Session topology" self test on ThunderX2.

After this fix the output contains the correct socket and die IDs and no
longer prints a warning about the size of the socket ID:

  ./perf stat --per-die -a

  Performance counter stats for 'system wide':

  S36-D0         128         169,869.39 msec cpu-clock                 #  127.501 CPUs utilized
  ...
  S3612-D0         128         169,733.05 msec cpu-clock                 #  127.398 CPUs utilized

Signed-off-by: James Clark 
Acked-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: John Garry 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Thomas Richter 
Link: https://lore.kernel.org/r/20201126141328.6509-10-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf stat aggregation: Add separate node member

2020-12-24T13:04:52+00:00

Add node as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark 
Acked-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: John Garry 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Thomas Richter 
Link: https://lore.kernel.org/r/20201126141328.6509-9-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo