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linux-st/include/trace/events
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Steven Rostedt (Red Hat) b35f549df1 syscalls: Remove start and number from syscall_get_arguments() args 
At Linux Plumbers, Andy Lutomirski approached me and pointed out that the
function call syscall_get_arguments() implemented in x86 was horribly
written and not optimized for the standard case of passing in 0 and 6 for
the starting index and the number of system calls to get. When looking at
all the users of this function, I discovered that all instances pass in only
0 and 6 for these arguments. Instead of having this function handle
different cases that are never used, simply rewrite it to return the first 6
arguments of a system call.

This should help out the performance of tracing system calls by ptrace,
ftrace and perf.

Link: http://lkml.kernel.org/r/20161107213233.754809394@goodmis.org

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Dave Martin <dave.martin@arm.com>
Cc: "Dmitry V. Levin" <ldv@altlinux.org>
Cc: x86@kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Max Filippov <jcmvbkbc@gmail.com> # For xtensa changes
Acked-by: Will Deacon <will.deacon@arm.com> # For the arm64 bits
Reviewed-by: Thomas Gleixner <tglx@linutronix.de> # for x86
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-04-05 09:26:43 -04:00
..
9p.h
…
afs.h
afs: Fix race in async call refcounting
2019-01-17 15:17:28 +00:00
alarmtimer.h
…
asoc.h
…
bcache.h
bcache: print number of keys in trace_bcache_journal_write
2018-12-13 08:15:54 -07:00
block.h
…
bridge.h
…
btrfs.h
btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record
2019-02-25 14:13:39 +01:00
cachefiles.h
…
cgroup.h
cgroup/tracing: Move taking of spin lock out of trace event handlers
2018-07-11 10:48:47 -07:00
clk.h
clk: add duty cycle support
2018-06-19 10:06:29 -07:00
cma.h
…
compaction.h
…
context_tracking.h
…
cpuhp.h
…
devlink.h
devlink: Add support for direct reporter health state update
2019-03-04 11:00:43 -08:00
dma_fence.h
…
ext4.h
ext4: force inode writes when nfsd calls commit_metadata()
2018-12-19 14:07:58 -05:00
f2fs.h
f2fs: print more parameters in trace_f2fs_map_blocks
2019-03-12 18:59:19 -07:00
fib6.h
net/ipv6: Udate fib6_table_lookup tracepoint
2018-05-24 23:01:15 -04:00
fib.h
net: Change the layout of structure trace_event_raw_fib_table_lookup
2018-08-13 09:21:05 -07:00
filelock.h
fs/locks: rename some lists and pointers.
2018-11-30 11:26:12 -05:00
filemap.h
…
fs_dax.h
…
fscache.h
…
fsi_master_ast_cf.h
fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire
2018-07-23 15:22:52 +10:00
fsi_master_gpio.h
fsi: master-gpio: Add more tracepoints
2018-07-12 12:02:31 +10:00
fsi.h
…
gpio.h
…
host1x.h
gpu: host1x: Introduce support for wide opcodes
2019-02-07 18:28:35 +01:00
hswadsp.h
…
huge_memory.h
…
hwmon.h
hwmon: (core) Add trace events to _attr_show/store functions
2018-10-11 20:07:35 -07:00
i2c.h
…
initcall.h
…
intel_ish.h
…
intel-sst.h
…
iommu.h
…
ipi.h
…
irq_matrix.h
…
irq.h
…
iscsi.h
scsi: iscsi: Capture iscsi debug messages using tracepoints
2018-12-20 20:03:55 -05:00
jbd2.h
…
kmem.h
…
kvm.h
…
kyber.h
kyber: fix wrong strlcpy() size in trace_kyber_latency()
2018-11-12 08:28:37 -07:00
libata.h
…
lock.h
…
mce.h
…
mdio.h
…
migrate.h
mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration
2018-10-02 11:31:14 +02:00
mlxsw.h
mlxsw: spectrum_acl: Add vregion migration end tracepoint
2019-02-24 20:25:29 -08:00
mmc.h
…
mmflags.h
mm: workingset: tell cache transitions from workingset thrashing
2018-10-26 16:26:32 -07:00
module.h
…
napi.h
…
neigh.h
trace: events: neigh_update: print new state in string format
2019-02-23 23:22:33 -08:00
net_probe_common.h
…
net.h
net: Add trace events for all receive exit points
2018-11-30 13:23:25 -08:00
nilfs2.h
…
nmi.h
…
objagg.h
lib: introduce initial implementation of object aggregation manager
2018-11-15 14:43:43 -08:00
oom.h
…
page_isolation.h
…
page_ref.h
…
pagemap.h
…
percpu.h
…
power_cpu_migrate.h
…
power.h
cpufreq: trace frequency limits change
2018-07-26 10:17:47 +02:00
preemptirq.h
tracing: Centralize preemptirq tracepoints and unify their usage
2018-07-31 11:32:27 -04:00
printk.h
…
pwc.h
media: usb: pwc: Introduce TRACE_EVENTs for pwc_isoc_handler()
2019-01-16 11:15:11 -05:00
qdisc.h
…
random.h
…
rcu.h
rcu: Eliminate ->rcu_qs_ctr from the rcu_dynticks structure
2018-08-30 16:03:42 -07:00
rdma.h
…
regulator.h
…
rpcgss.h
SUNRPC: Introduce trace points in rpc_auth_gss.ko
2019-02-14 09:20:40 -05:00
rpcrdma.h
SUNRPC: Introduce trace points in rpc_auth_gss.ko
2019-02-14 09:20:40 -05:00
rpm.h
…
rseq.h
rseq: Introduce restartable sequences system call
2018-06-06 11:58:31 +02:00
rtc.h
…
rxrpc.h
rxrpc: Fix client call connect/disconnect race
2019-03-08 11:26:16 -08:00
sched.h
sched, trace: Fix prev_state output in sched_switch tracepoint
2018-11-27 20:31:55 -05:00
scsi.h
…
sctp.h
…
signal.h
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
siox.h
…
skb.h
…
smbus.h
i2c: core-smbus: don't trace smbus_reply data on errors
2019-02-14 18:01:33 +01:00
sock.h
net: expose sk wmem in sock_exceed_buf_limit tracepoint
2018-07-02 22:40:56 +09:00
spi.h
spi/trace: include buffer contents in traces
2019-01-07 18:33:10 +00:00
spmi.h
…
sunrpc.h
fix null pointer deref in tracepoints in back channel
2019-03-12 16:01:39 -04:00
sunvnet.h
…
swiotlb.h
…
syscalls.h
syscalls: Remove start and number from syscall_get_arguments() args
2019-04-05 09:26:43 -04:00
target.h
…
task.h
…
tcp.h
tcp: expose sk_state in tcp_retransmit_skb tracepoint
2018-09-26 20:07:19 -07:00
tegra_apb_dma.h
dmaengine: tegra: add tracepoints to driver
2019-01-07 09:52:42 +05:30
thermal_power_allocator.h
…
thermal.h
…
thp.h
…
timer.h
…
tlb.h
…
udp.h
…
ufs.h
…
v4l2.h
…
vb2.h
…
vmscan.h
…
vsock_virtio_transport_common.h
…
wbt.h
…
workqueue.h
…
writeback.h
…
xdp.h
bpf: fix redirect to map under tail calls
2018-08-17 15:56:23 -07:00
xen.h
…