Daniel Borkmann says:
====================
pull-request: bpf 2019-06-07
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix several bugs in riscv64 JIT code emission which forgot to clear high
32-bits for alu32 ops, from Björn and Luke with selftests covering all
relevant BPF alu ops from Björn and Jiong.
2) Two fixes for UDP BPF reuseport that avoid calling the program in case of
__udp6_lib_err and UDP GRO which broke reuseport_select_sock() assumption
that skb->data is pointing to transport header, from Martin.
3) Two fixes for BPF sockmap: a use-after-free from sleep in psock's backlog
workqueue, and a missing restore of sk_write_space when psock gets dropped,
from Jakub and John.
4) Fix unconnected UDP sendmsg hook API which is insufficient as-is since it
breaks standard applications like DNS if reverse NAT is not performed upon
receive, from Daniel.
5) Fix an out-of-bounds read in __bpf_skc_lookup which in case of AF_INET6
fails to verify that the length of the tuple is long enough, from Lorenz.
6) Fix libbpf's libbpf__probe_raw_btf to return an fd instead of 0/1 (for
{un,}successful probe) as that is expected to be propagated as an fd to
load_sk_storage_btf() and thus closing the wrong descriptor otherwise,
from Michal.
7) Fix bpftool's JSON output for the case when a lookup fails, from Krzesimir.
8) Minor misc fixes in docs, samples and selftests, from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync BPF uapi header in order to pull in BPF_CGROUP_UDP{4,6}_RECVMSG
attach types. This is done and preferred as an extra patch in order
to ease sync of libbpf.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
dd53f6102c ("Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD")
59c5c58c5b ("Merge tag 'kvm-ppc-next-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD")
d7547c55cb ("KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2")
6520ca64cd ("KVM: PPC: Book3S HV: XIVE: Add a mapping for the source ESB pages")
39e9af3de5 ("KVM: PPC: Book3S HV: XIVE: Add a TIMA mapping")
e4945b9da5 ("KVM: PPC: Book3S HV: XIVE: Add get/set accessors for the VP XIVE state")
e6714bd167 ("KVM: PPC: Book3S HV: XIVE: Add a control to dirty the XIVE EQ pages")
7b46b6169a ("KVM: PPC: Book3S HV: XIVE: Add a control to sync the sources")
5ca8064748 ("KVM: PPC: Book3S HV: XIVE: Add a global reset control")
13ce3297c5 ("KVM: PPC: Book3S HV: XIVE: Add controls for the EQ configuration")
e8676ce50e ("KVM: PPC: Book3S HV: XIVE: Add a control to configure a source")
4131f83c3d ("KVM: PPC: Book3S HV: XIVE: add a control to initialize a source")
eacc56bb9d ("KVM: PPC: Book3S HV: XIVE: Introduce a new capability KVM_CAP_PPC_IRQ_XIVE")
90c73795af ("KVM: PPC: Book3S HV: Add a new KVM device for the XIVE native exploitation mode")
4f45b90e1c ("KVM: s390: add deflate conversion facilty to cpu model")
a243c16d18 ("KVM: arm64: Add capability to advertise ptrauth for guest")
a22fa321d1 ("KVM: arm64: Add userspace flag to enable pointer authentication")
4bd774e57b ("KVM: arm64/sve: Simplify KVM_REG_ARM64_SVE_VLS array sizing")
8ae6efdde4 ("KVM: arm64/sve: Clean up UAPI register ID definitions")
173aec2d5a ("KVM: s390: add enhanced sort facilty to cpu model")
555f3d03e7 ("KVM: arm64: Add a capability to advertise SVE support")
9033bba4b5 ("KVM: arm64/sve: Add pseudo-register for the guest's vector lengths")
7dd32a0d01 ("KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl")
e1c9c98345 ("KVM: arm64/sve: Add SVE support to register access ioctl interface")
2b953ea348 ("KVM: Allow 2048-bit register access via ioctl interface")
None entails changes in tooling, the closest to that were some new arch
specific ioctls, that are still not handled by the tools/perf/trace/beauty/
library, that needs to create per-arch tables to convert ioctl cmd->string (and
back).
From a quick look the arch specific kvm-stat.c files at:
$ ls -1 tools/perf/arch/*/util/kvm-stat.c
tools/perf/arch/powerpc/util/kvm-stat.c
tools/perf/arch/s390/util/kvm-stat.c
tools/perf/arch/x86/util/kvm-stat.c
$
Are not affected.
This silences these perf building warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'
diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Amit Daniel Kachhap <amit.kachhap@arm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Cédric Le Goater <clg@kaod.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Peter Xu <peterx@redhat.com>
Link: https://lkml.kernel.org/n/tip-3msmqjenlmb7eygcdnmlqaq1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in these csets:
060cebb20c ("drm: introduce a capability flag for syncobj timeline support")
50d1ebef79 ("drm/syncobj: add timeline signal ioctl for syncobj v5")
ea569910cb ("drm/syncobj: add transition iotcls between binary and timeline v2")
27b575a9aa ("drm/syncobj: add timeline payload query ioctl v6")
01d6c35783 ("drm/syncobj: add support for timeline point wait v8")
783195ec1c ("drm/syncobj: disable the timeline UAPI for now v2")
48197bc564 ("drm: add syncobj timeline support v9")
Which automagically results in the following new ioctls being recognized
by the 'perf trace' ioctl cmd arg beautifier:
$ tools/perf/trace/beauty/drm_ioctl.sh > /tmp/before
$ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
$ tools/perf/trace/beauty/drm_ioctl.sh > /tmp/after
$ diff -u /tmp/before /tmp/after
--- /tmp/before 2019-05-22 10:25:31.443151182 -0300
+++ /tmp/after 2019-05-22 10:25:46.449354819 -0300
@@ -103,6 +103,10 @@
[0xC7] = "MODE_LIST_LESSEES",
[0xC8] = "MODE_GET_LEASE",
[0xC9] = "MODE_REVOKE_LEASE",
+ [0xCA] = "SYNCOBJ_TIMELINE_WAIT",
+ [0xCB] = "SYNCOBJ_QUERY",
+ [0xCC] = "SYNCOBJ_TRANSFER",
+ [0xCD] = "SYNCOBJ_TIMELINE_SIGNAL",
[DRM_COMMAND_BASE + 0x00] = "I915_INIT",
[DRM_COMMAND_BASE + 0x01] = "I915_FLUSH",
[DRM_COMMAND_BASE + 0x02] = "I915_FLIP",
$
I.e. the strace like raw_tracepoint:sys_enter handler in 'perf trace'
will get the cmd integer value and map it to the string.
At some point it should be possible to translate from string to integer
and use to filter using expressions such as:
# perf trace -e ioctl/cmd==DRM_IOCTL_SYNCOBJ*/
Or some more suitable syntax to express that only these ioctls when
acting on DRM fds should be shown.
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-jrc9ogw33w4zgqc3pu7o1l3g@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes from:
d1172ab3d4 ("drm/i915: Introduce struct class_instance for engines across the uAPI")
96fd2c6633 ("drm/i915: Drop new chunks of context creation ABI (for now)")
ea593dbba4 ("drm/i915: Allow contexts to share a single timeline across all engines")
b917154172 ("drm/i915: Extend CONTEXT_CREATE to set parameters upon construction")
e0695db729 ("drm/i915: Create/destroy VM (ppGTT) for use with contexts")
9d1305ef80 ("drm/i915: Introduce the i915_user_extension_method")
c8b502422b ("drm/i915: Remove last traces of exec-id (GEM_BUSY)")
d90c06d570 ("drm/i915: Fix I915_EXEC_RING_MASK")
e886196469 ("drm/i915: Use HW semaphores for inter-engine synchronisation on gen8+")
be03564bd7 ("drm/i915: Include reminders about leaving no holes in uAPI enums")
ba4fda620a ("drm/i915: Optionally disable automatic recovery after a GPU reset")
We still don't take into account the _IOC_SIZE() to differentiate ioctl cmds,
so more work is needed to support the extension mechanism that is being used
here so that we can differentiate DRM_IOCTL_I915_GEM_CONTEXT_CREATE from the
newly introduced DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT cmd.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://lkml.kernel.org/n/tip-csn0vanmc7pevyka5qcg0xyw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in:
c553ea4fdf ("fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback")
That should be used to beautify the 'sync_file_range' syscall 'flags'
arg.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h'
diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-at3uoqcvmqdkwaysmvbj1wpv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the change in:
b3e5838252 ("clone: add CLONE_PIDFD")
This requires changes in the 'perf trace' beautification routines for
the 'clone' syscall args, which is done in a followup patch.
This silences the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h'
diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Christian Brauner <christian@brauner.io>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lenja6gmy26dkt0ybk747qgq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Copy the headers changed by these csets:
d8076bdb56 ("uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]")
9c8ad7a2ff ("uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2]")
cf3cba4a42 ("vfs: syscall: Add fspick() to select a superblock for reconfiguration")
93766fbd26 ("vfs: syscall: Add fsmount() to create a mount for a superblock")
ecdab150fd ("vfs: syscall: Add fsconfig() for configuring and managing a context")
24dcb3d90a ("vfs: syscall: Add fsopen() to prepare for superblock creation")
2db154b3ea ("vfs: syscall: Add move_mount(2) to move mounts around")
a07b200047 ("vfs: syscall: Add open_tree(2) to reference or clone a mount")
We need to create tables for all the flags argument in the new syscalls,
in followup patches.
This silences these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-knpqr1u2ffvz6641056z2mwu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
For the fix of BTF_INT_OFFSET().
Signed-off-by: Gary Lin <glin@suse.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Synchronise the bpf.h header under tools, to report the fixes and
additions recently brought to the documentation for the BPF helpers.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-04-28
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Introduce BPF socket local storage map so that BPF programs can store
private data they associate with a socket (instead of e.g. separate hash
table), from Martin.
2) Add support for bpftool to dump BTF types. This is done through a new
`bpftool btf dump` sub-command, from Andrii.
3) Enable BPF-based flow dissector for skb-less eth_get_headlen() calls which
was currently not supported since skb was used to lookup netns, from Stanislav.
4) Add an opt-in interface for tracepoints to expose a writable context
for attached BPF programs, used here for NBD sockets, from Matt.
5) BPF xadd related arm64 JIT fixes and scalability improvements, from Daniel.
6) Change the skb->protocol for bpf_skb_adjust_room() helper in order to
support tunnels such as sit. Add selftests as well, from Willem.
7) Various smaller misc fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, and fixes up the
error: enumeration value ‘BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE’ not handled in switch [-Werror=switch-enum]
build errors it would otherwise cause in libbpf.
Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Picking the changes from:
Fixes: b5bdbb6ccd ("ALSA: uapi: #include <time.h> in asound.h")
Which entails no changes in the tooling side.
To silence this perf tools build warning:
Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h'
diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lkml.kernel.org/n/tip-15o4twfkbn6nny9aus90dyzx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
replace tab after #define with space in line with rest of definitions
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-04-12
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Improve BPF verifier scalability for large programs through two
optimizations: i) remove verifier states that are not useful in pruning,
ii) stop walking parentage chain once first LIVE_READ is seen. Combined
gives approx 20x speedup. Increase limits for accepting large programs
under root, and add various stress tests, from Alexei.
2) Implement global data support in BPF. This enables static global variables
for .data, .rodata and .bss sections to be properly handled which allows
for more natural program development. This also opens up the possibility
to optimize program workflow by compiling ELFs only once and later only
rewriting section data before reload, from Daniel and with test cases and
libbpf refactoring from Joe.
3) Add config option to generate BTF type info for vmlinux as part of the
kernel build process. DWARF debug info is converted via pahole to BTF.
Latter relies on libbpf and makes use of BTF deduplication algorithm which
results in 100x savings compared to DWARF data. Resulting .BTF section is
typically about 2MB in size, from Andrii.
4) Add BPF verifier support for stack access with variable offset from
helpers and add various test cases along with it, from Andrey.
5) Extend bpf_skb_adjust_room() growth BPF helper to mark inner MAC header
so that L2 encapsulation can be used for tc tunnels, from Alan.
6) Add support for input __sk_buff context in BPF_PROG_TEST_RUN so that
users can define a subset of allowed __sk_buff fields that get fed into
the test program, from Stanislav.
7) Add bpf fs multi-dimensional array tests for BTF test suite and fix up
various UBSAN warnings in bpftool, from Yonghong.
8) Generate a pkg-config file for libbpf, from Luca.
9) Dump program's BTF id in bpftool, from Prashant.
10) libbpf fix to use smaller BPF log buffer size for AF_XDP's XDP
program, from Magnus.
11) kallsyms related fixes for the case when symbols are not present in
BPF selftests and samples, from Daniel
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync include/uapi/linux/bpf.h with tools/ equivalent to add
BPF_F_ADJ_ROOM_ENCAP_L2(len) macro.
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Support recently introduced input/output context for test runs.
We extend only bpf_prog_test_run_xattr. bpf_prog_test_run is
unextendable and left as is.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Pull in latest changes from both headers, so we can make use of
them in libbpf.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Minor comment merge conflict in mlx5.
Staging driver has a fixup due to the skb->xmit_more changes
in 'net-next', but was removed in 'net'.
Signed-off-by: David S. Miller <davem@davemloft.net>
To pick up the changes introduced in the following csets:
2b188cc1bb ("Add io_uring IO interface")
edafccee56 ("io_uring: add support for pre-mapped user IO buffers")
3eb39f4793 ("signal: add pidfd_send_signal() syscall")
This makes 'perf trace' to become aware of these new syscalls, so that
one can use them like 'perf trace -e ui_uring*,*signal' to do a system
wide strace-like session looking at those syscalls, for instance.
For example:
# perf trace -s io_uring-cp ~acme/isos/RHEL-x86_64-dvd1.iso ~/bla
Summary of events:
io_uring-cp (383), 1208866 events, 100.0%
syscall calls total min avg max stddev
(msec) (msec) (msec) (msec) (%)
-------------- ------ -------- ------ ------- ------- ------
io_uring_enter 605780 2955.615 0.000 0.005 33.804 1.94%
openat 4 459.446 0.004 114.861 459.435 100.00%
munmap 4 0.073 0.009 0.018 0.042 44.03%
mmap 10 0.054 0.002 0.005 0.026 43.24%
brk 28 0.038 0.001 0.001 0.003 7.51%
io_uring_setup 1 0.030 0.030 0.030 0.030 0.00%
mprotect 4 0.014 0.002 0.004 0.005 14.32%
close 5 0.012 0.001 0.002 0.004 28.87%
fstat 3 0.006 0.001 0.002 0.003 35.83%
read 4 0.004 0.001 0.001 0.002 13.58%
access 1 0.003 0.003 0.003 0.003 0.00%
lseek 3 0.002 0.001 0.001 0.001 9.00%
arch_prctl 2 0.002 0.001 0.001 0.001 0.69%
execve 1 0.000 0.000 0.000 0.000 0.00%
#
# perf trace -e io_uring* -s io_uring-cp ~acme/isos/RHEL-x86_64-dvd1.iso ~/bla
Summary of events:
io_uring-cp (390), 1191250 events, 100.0%
syscall calls total min avg max stddev
(msec) (msec) (msec) (msec) (%)
-------------- ------ -------- ------ ------ ------ ------
io_uring_enter 597093 2706.060 0.001 0.005 14.761 1.10%
io_uring_setup 1 0.038 0.038 0.038 0.038 0.00%
#
More work needed to make the tools/perf/examples/bpf/augmented_raw_syscalls.c
BPF program to copy the 'struct io_uring_params' arguments to perf's ring
buffer so that 'perf trace' can use the BTF info put in place by pahole's
conversion of the kernel DWARF and then auto-beautify those arguments.
This patch produces the expected change in the generated syscalls table
for x86_64:
--- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2019-03-26 13:37:46.679057774 -0300
+++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2019-03-26 13:38:12.755990383 -0300
@@ -334,5 +334,9 @@ static const char *syscalltbl_x86_64[] =
[332] = "statx",
[333] = "io_pgetevents",
[334] = "rseq",
+ [424] = "pidfd_send_signal",
+ [425] = "io_uring_setup",
+ [426] = "io_uring_enter",
+ [427] = "io_uring_register",
};
-#define SYSCALLTBL_x86_64_MAX_ID 334
+#define SYSCALLTBL_x86_64_MAX_ID 427
This silences these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Christian Brauner <christian@brauner.io>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lkml.kernel.org/n/tip-p0ars3otuc52x5iznf21shhw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
e46c2e99f6 ("drm/i915: Expose RPCS (SSEU) configuration to userspace (Gen11 only)")
That don't cause changes in the generated perf binaries.
To silence this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://lkml.kernel.org/n/tip-h6bspm1nomjnpr90333rrx7q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
ab3948f58f ("mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd")
And silence this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/fcntl.h' differs from latest version at 'include/uapi/linux/fcntl.h'
diff -u tools/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lvfx5cgf0xzmdi9mcjva1ttl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To deal with the move of some defines from asm-generic/mmap-common.h to
linux/mman.h done in:
746c9398f5 ("arch: move common mmap flags to linux/mman.h")
The generated mmap_flags array stays the same:
$ tools/perf/trace/beauty/mmap_flags.sh
static const char *mmap_flags[] = {
[ilog2(0x40) + 1] = "32BIT",
[ilog2(0x01) + 1] = "SHARED",
[ilog2(0x02) + 1] = "PRIVATE",
[ilog2(0x10) + 1] = "FIXED",
[ilog2(0x20) + 1] = "ANONYMOUS",
[ilog2(0x100000) + 1] = "FIXED_NOREPLACE",
[ilog2(0x0100) + 1] = "GROWSDOWN",
[ilog2(0x0800) + 1] = "DENYWRITE",
[ilog2(0x1000) + 1] = "EXECUTABLE",
[ilog2(0x2000) + 1] = "LOCKED",
[ilog2(0x4000) + 1] = "NORESERVE",
[ilog2(0x8000) + 1] = "POPULATE",
[ilog2(0x10000) + 1] = "NONBLOCK",
[ilog2(0x20000) + 1] = "STACK",
[ilog2(0x40000) + 1] = "HUGETLB",
[ilog2(0x80000) + 1] = "SYNC",
};
$
And to have the system's sys/mman.h find the definition of MAP_SHARED
and MAP_PRIVATE, make sure they are defined in the tools/ mman-common.h
in a way that keeps it the same as the kernel's, need for keeping the
Android's NDK cross build working.
This silences these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h'
diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-h80ycpc6pedg9s5z2rwpy6ws@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull networking fixes from David Miller:
"Fixes here and there, a couple new device IDs, as usual:
1) Fix BQL race in dpaa2-eth driver, from Ioana Ciornei.
2) Fix 64-bit division in iwlwifi, from Arnd Bergmann.
3) Fix documentation for some eBPF helpers, from Quentin Monnet.
4) Some UAPI bpf header sync with tools, also from Quentin Monnet.
5) Set descriptor ownership bit at the right time for jumbo frames in
stmmac driver, from Aaro Koskinen.
6) Set IFF_UP properly in tun driver, from Eric Dumazet.
7) Fix load/store doubleword instruction generation in powerpc eBPF
JIT, from Naveen N. Rao.
8) nla_nest_start() return value checks all over, from Kangjie Lu.
9) Fix asoc_id handling in SCTP after the SCTP_*_ASSOC changes this
merge window. From Marcelo Ricardo Leitner and Xin Long.
10) Fix memory corruption with large MTUs in stmmac, from Aaro
Koskinen.
11) Do not use ipv4 header for ipv6 flows in TCP and DCCP, from Eric
Dumazet.
12) Fix topology subscription cancellation in tipc, from Erik Hugne.
13) Memory leak in genetlink error path, from Yue Haibing.
14) Valid control actions properly in packet scheduler, from Davide
Caratti.
15) Even if we get EEXIST, we still need to rehash if a shrink was
delayed. From Herbert Xu.
16) Fix interrupt mask handling in interrupt handler of r8169, from
Heiner Kallweit.
17) Fix leak in ehea driver, from Wen Yang"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (168 commits)
dpaa2-eth: fix race condition with bql frame accounting
chelsio: use BUG() instead of BUG_ON(1)
net: devlink: skip info_get op call if it is not defined in dumpit
net: phy: bcm54xx: Encode link speed and activity into LEDs
tipc: change to check tipc_own_id to return in tipc_net_stop
net: usb: aqc111: Extend HWID table by QNAP device
net: sched: Kconfig: update reference link for PIE
net: dsa: qca8k: extend slave-bus implementations
net: dsa: qca8k: remove leftover phy accessors
dt-bindings: net: dsa: qca8k: support internal mdio-bus
dt-bindings: net: dsa: qca8k: fix example
net: phy: don't clear BMCR in genphy_soft_reset
bpf, libbpf: clarify bump in libbpf version info
bpf, libbpf: fix version info and add it to shared object
rxrpc: avoid clang -Wuninitialized warning
tipc: tipc clang warning
net: sched: fix cleanup NULL pointer exception in act_mirr
r8169: fix cable re-plugging issue
net: ethernet: ti: fix possible object reference leak
net: ibm: fix possible object reference leak
...
kernel:
Stephane Eranian :
- Restore mmap record type correctly when handling PERF_RECORD_MMAP2
events, as the same template is used for all the threads interested
in mmap events, some may want just PERF_RECORD_MMAP, while some
may want the extra info in MMAP2 records.
perf probe:
Adrian Hunter:
- Fix getting the kernel map, because since changes related to x86 PTI
entry trampolines handling, there are more than one kernel map.
perf script:
Andi Kleen:
- Support insn output for normal samples, i.e.:
perf script -F ip,sym,insn --xed
Will fetch the sample IP from the thread address space and feed it
to Intel's XED disassembler, producing lines such as:
ffffffffa4068804 native_write_msr wrmsr
ffffffffa415b95e __hrtimer_next_event_base movq 0x18(%rax), %rdx
That match 'perf annotate's output.
- Make the --cpu filter apply to PERF_RECORD_COMM/FORK/... events, in
addition to PERF_RECORD_SAMPLE.
perf report:
- Add a new --samples option to save a small random number of samples
per hist entry, using a reservoir technique to select a representative
number of samples.
Then allow browsing the samples using 'perf script' as part of the hist
entry context menu. This automatically adds the right filters, so only
the thread or CPU of the sample is displayed. Then we use less' search
functionality to directly jump to the time stamp of the selected sample.
It uses different menus for assembler and source display. Assembler
needs xed installed and source needs debuginfo.
- Fix the UI browser scripts pop up menu when there are many scripts
available.
perf report:
Andi Kleen:
- Add 'time' sort option. E.g.:
% perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
...
0.67% 277061.87300 [.] _dl_start
0.50% 277061.87300 [.] f1
0.50% 277061.87300 [.] f2
0.33% 277061.87300 [.] main
0.29% 277061.87300 [.] _dl_lookup_symbol_x
0.29% 277061.87300 [.] dl_main
0.29% 277061.87300 [.] do_lookup_x
0.17% 277061.87300 [.] _dl_debug_initialize
0.17% 277061.87300 [.] _dl_init_paths
0.08% 277061.87300 [.] check_match
0.04% 277061.87300 [.] _dl_count_modids
1.33% 277061.87400 [.] f1
1.33% 277061.87400 [.] f2
1.33% 277061.87400 [.] main
1.17% 277061.87500 [.] main
1.08% 277061.87500 [.] f1
1.08% 277061.87500 [.] f2
1.00% 277061.87600 [.] main
0.83% 277061.87600 [.] f1
0.83% 277061.87600 [.] f2
1.00% 277061.87700 [.] main
tools headers:
Arnaldo Carvalho de Melo:
- Update x86's syscall_64.tbl, no change in tools/perf behaviour.
- Sync copies asm-generic/unistd.h and linux/in with the kernel sources.
perf data:
Jiri Olsa:
- Prep work to support having perf.data stored as a directory, with one
file per CPU, that ultimately will allow having one ring buffer reading
thread per CPU.
Vendor events:
Martin Liška:
- perf PMU events for AMD Family 17h.
perf script python:
Tony Jones:
- Add python3 support for the remaining Intel PT related scripts, with
these we should have a clean build of perf with python3 while still
supporting the build with python2.
libbpf:
Arnaldo Carvalho de Melo:
- Fix the build on uCLibc, adding the missing stdarg.h since we use
va_list in one typedef.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.1-20190311' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo:
kernel:
Stephane Eranian :
- Restore mmap record type correctly when handling PERF_RECORD_MMAP2
events, as the same template is used for all the threads interested
in mmap events, some may want just PERF_RECORD_MMAP, while some
may want the extra info in MMAP2 records.
perf probe:
Adrian Hunter:
- Fix getting the kernel map, because since changes related to x86 PTI
entry trampolines handling, there are more than one kernel map.
perf script:
Andi Kleen:
- Support insn output for normal samples, i.e.:
perf script -F ip,sym,insn --xed
Will fetch the sample IP from the thread address space and feed it
to Intel's XED disassembler, producing lines such as:
ffffffffa4068804 native_write_msr wrmsr
ffffffffa415b95e __hrtimer_next_event_base movq 0x18(%rax), %rdx
That match 'perf annotate's output.
- Make the --cpu filter apply to PERF_RECORD_COMM/FORK/... events, in
addition to PERF_RECORD_SAMPLE.
perf report:
- Add a new --samples option to save a small random number of samples
per hist entry, using a reservoir technique to select a representative
number of samples.
Then allow browsing the samples using 'perf script' as part of the hist
entry context menu. This automatically adds the right filters, so only
the thread or CPU of the sample is displayed. Then we use less' search
functionality to directly jump to the time stamp of the selected sample.
It uses different menus for assembler and source display. Assembler
needs xed installed and source needs debuginfo.
- Fix the UI browser scripts pop up menu when there are many scripts
available.
perf report:
Andi Kleen:
- Add 'time' sort option. E.g.:
% perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
...
0.67% 277061.87300 [.] _dl_start
0.50% 277061.87300 [.] f1
0.50% 277061.87300 [.] f2
0.33% 277061.87300 [.] main
0.29% 277061.87300 [.] _dl_lookup_symbol_x
0.29% 277061.87300 [.] dl_main
0.29% 277061.87300 [.] do_lookup_x
0.17% 277061.87300 [.] _dl_debug_initialize
0.17% 277061.87300 [.] _dl_init_paths
0.08% 277061.87300 [.] check_match
0.04% 277061.87300 [.] _dl_count_modids
1.33% 277061.87400 [.] f1
1.33% 277061.87400 [.] f2
1.33% 277061.87400 [.] main
1.17% 277061.87500 [.] main
1.08% 277061.87500 [.] f1
1.08% 277061.87500 [.] f2
1.00% 277061.87600 [.] main
0.83% 277061.87600 [.] f1
0.83% 277061.87600 [.] f2
1.00% 277061.87700 [.] main
tools headers:
Arnaldo Carvalho de Melo:
- Update x86's syscall_64.tbl, no change in tools/perf behaviour.
- Sync copies asm-generic/unistd.h and linux/in with the kernel sources.
perf data:
Jiri Olsa:
- Prep work to support having perf.data stored as a directory, with one
file per CPU, that ultimately will allow having one ring buffer reading
thread per CPU.
Vendor events:
Martin Liška:
- perf PMU events for AMD Family 17h.
perf script python:
Tony Jones:
- Add python3 support for the remaining Intel PT related scripts, with
these we should have a clean build of perf with python3 while still
supporting the build with python2.
libbpf:
Arnaldo Carvalho de Melo:
- Fix the build on uCLibc, adding the missing stdarg.h since we use
va_list in one typedef.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sync include/uapi/linux/bpf.h with tools/
Changes
v1->v2:
- BPF_F_ADJ_ROOM_MASK moved, no longer in this commit
v2->v3:
- BPF_F_ADJ_ROOM_ENCAP_L3_MASK moved, no longer in this commit
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Daniel Borkmann says:
====================
pull-request: bpf 2019-03-16
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a umem memory leak on cleanup in AF_XDP, from Björn.
2) Fix BTF to properly resolve forward-declared enums into their corresponding
full enum definition types during deduplication, from Andrii.
3) Fix libbpf to reject invalid flags in xsk_socket__create(), from Magnus.
4) Fix accessing invalid pointer returned from bpf_tcp_sock() and
bpf_sk_fullsock() after bpf_sk_release() was called, from Martin.
5) Fix generation of load/store DW instructions in PPC JIT, from Naveen.
6) Various fixes in BPF helper function documentation in bpf.h UAPI header
used to bpf-helpers(7) man page, from Quentin.
7) Fix segfault in BPF test_progs when prog loading failed, from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Synchronise the bpf.h header under tools, to report the latest fixes and
additions to the documentation for the BPF helpers.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
To get the changes in:
4effd28c12 ("bridge: join all-snoopers multicast address")
That do not generate any changes in tools/ use of this file.
Silences this tools/perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h'
diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Lüssing <linus.luessing@c0d3.blue>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ifpl634035266ho6wxuqgo81@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
c8ce48f065 ("asm-generic: Make time32 syscall numbers optional")
Silencing these tools/perf build warnings:
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/unistd.h' differs from latest version at 'arch/arm64/include/uapi/asm/unistd.h'
diff -u tools/arch/arm64/include/uapi/asm/unistd.h arch/arm64/include/uapi/asm/unistd.h
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Test built it under the ubuntu:14.04.4-x-linaro-arm64 cross build
environment and looked at the syscall table at
/tmp/build/perf/arch/arm64/include/generated/asm/syscalls.c, looks ok.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Link: https://lkml.kernel.org/n/tip-e4w7ngsmkq48bd6st52ty2kb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- remove sensor drivers that got converted from soc_camera
- remaining soc_camera drivers got moved to staging
- some documentation cleanups and improvements
- the imx staging driver now supports imx7
- the ov9640, mt9m001 and mt9m111 got converted from soc_camera
- the vim2m driver now does what a m2m convert driver expects to do
- epoll() fixes on media subsystems
- several drivers fixes, typos, cleanups and improvements
* tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (346 commits)
media: dvb/earth-pt1: fix wrong initialization for demod blocks
media: vim2m: Address some coding style issues
media: vim2m: don't use BUG()
media: vim2m: speedup passthrough copy
media: vim2m: add an horizontal scaler
media: vim2m: don't accept YUYV anymore as output format
media: vim2m: add vertical linear scaler
media: vim2m: better handle cap/out buffers with different sizes
media: vim2m: use different framesizes for bayer formats
media: vim2m: add support for VIDIOC_ENUM_FRAMESIZES
media: vim2m: ensure that width is multiple of two
media: vim2m: improve debug messages
media: vim2m: add bayer capture formats
media: a few more typos at staging, pci, platform, radio and usb
media: Documentation: fix several typos
media: staging: fix several typos
media: include: fix several typos
media: common: fix several typos
media: v4l2-core: fix several typos
media: usb: fix several typos
...
Pull perf updates from Ingo Molnar:
"Lots of tooling updates - too many to list, here's a few highlights:
- Various subcommand updates to 'perf trace', 'perf report', 'perf
record', 'perf annotate', 'perf script', 'perf test', etc.
- CPU and NUMA topology and affinity handling improvements,
- HW tracing and HW support updates:
- Intel PT updates
- ARM CoreSight updates
- vendor HW event updates
- BPF updates
- Tons of infrastructure updates, both on the build system and the
library support side
- Documentation updates.
- ... and lots of other changes, see the changelog for details.
Kernel side updates:
- Tighten up kprobes blacklist handling, reduce the number of places
where developers can install a kprobe and hang/crash the system.
- Fix/enhance vma address filter handling.
- Various PMU driver updates, small fixes and additions.
- refcount_t conversions
- BPF updates
- error code propagation enhancements
- misc other changes"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits)
perf script python: Add Python3 support to syscall-counts-by-pid.py
perf script python: Add Python3 support to syscall-counts.py
perf script python: Add Python3 support to stat-cpi.py
perf script python: Add Python3 support to stackcollapse.py
perf script python: Add Python3 support to sctop.py
perf script python: Add Python3 support to powerpc-hcalls.py
perf script python: Add Python3 support to net_dropmonitor.py
perf script python: Add Python3 support to mem-phys-addr.py
perf script python: Add Python3 support to failed-syscalls-by-pid.py
perf script python: Add Python3 support to netdev-times.py
perf tools: Add perf_exe() helper to find perf binary
perf script: Handle missing fields with -F +..
perf data: Add perf_data__open_dir_data function
perf data: Add perf_data__(create_dir|close_dir) functions
perf data: Fail check_backup in case of error
perf data: Make check_backup work over directories
perf tools: Add rm_rf_perf_data function
perf tools: Add pattern name checking to rm_rf
perf tools: Add depth checking to rm_rf
perf data: Add global path holder
...
Pull x86/pti update from Thomas Gleixner:
"Just a single change from the anti-performance departement:
- Add a new PR_SPEC_DISABLE_NOEXEC option which allows to apply the
speculation protections on a process without inheriting the state
on exec.
This remedies a situation where a Java-launcher has speculation
protections enabled because that's the default for JVMs which
causes the launched regular harmless processes to inherit the
protection state which results in unintended performance
degradation"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Add PR_SPEC_DISABLE_NOEXEC
This patch syncs the uapi bpf.h to tools/ and also updates
bpf_herlpers.h in tools/
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit adds AF_XDP support to libbpf. The main reason for this is
to facilitate writing applications that use AF_XDP by offering
higher-level APIs that hide many of the details of the AF_XDP
uapi. This is in the same vein as libbpf facilitates XDP adoption by
offering easy-to-use higher level interfaces of XDP
functionality. Hopefully this will facilitate adoption of AF_XDP, make
applications using it simpler and smaller, and finally also make it
possible for applications to benefit from optimizations in the AF_XDP
user space access code. Previously, people just copied and pasted the
code from the sample application into their application, which is not
desirable.
The interface is composed of two parts:
* Low-level access interface to the four rings and the packet
* High-level control plane interface for creating and setting
up umems and af_xdp sockets as well as a simple XDP program.
Tested-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
media: add support for RCMM infrared remote controls.
Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2019-02-16
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) numerous libbpf API improvements, from Andrii, Andrey, Yonghong.
2) test all bpf progs in alu32 mode, from Jiong.
3) skb->sk access and bpf_sk_fullsock(), bpf_tcp_sock() helpers, from Martin.
4) support for IP encap in lwt bpf progs, from Peter.
5) remove XDP_QUERY_XSK_UMEM dead code, from Jan.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The netfilter conflicts were rather simple overlapping
changes.
However, the cls_tcindex.c stuff was a bit more complex.
On the 'net' side, Cong is fixing several races and memory
leaks. Whilst on the 'net-next' side we have Vlad adding
the rtnl-ness support.
What I've decided to do, in order to resolve this, is revert the
conversion over to using a workqueue that Cong did, bringing us back
to pure RCU. I did it this way because I believe that either Cong's
races don't apply with have Vlad did things, or Cong will have to
implement the race fix slightly differently.
Signed-off-by: David S. Miller <davem@davemloft.net>
Syncing if_link.h that got out of sync.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This patch copies changes in bpf.h done by a previous patch
in this patchset from the kernel uapi include dir into tools
uapi include dir.
Signed-off-by: Peter Oskolkov <posk@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This patch sync the uapi bpf.h to tools/.
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
