Hassan Naveed 0e24220821 tracing: Use xarray for syscall trace events ... Currently, a lot of memory is wasted for architectures like MIPS when init_ftrace_syscalls() allocates the array for syscalls using kcalloc. This is because syscalls numbers start from 4000, 5000 or 6000 and array elements up to that point are unused. Fix this by using a data structure more suited to storing sparsely populated arrays. The XARRAY data structure, implemented using radix trees, is much more memory efficient for storing the syscalls in question. Link: http://lkml.kernel.org/r/20191115234314.21599-1-hnaveed@wavecomp.com Signed-off-by: Hassan Naveed <hnaveed@wavecomp.com> Reviewed-by: Paul Burton <paulburton@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2019-11-22 19:47:41 -05:00
..
blktrace.c
bpf_trace.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-09-28 17:47:33 -07:00
fgraph.c	ftrace: Rename ftrace_graph_stub to ftrace_stub_graph	2019-11-18 11:42:16 -05:00
ftrace_internal.h
ftrace.c	ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization	2019-11-18 11:42:09 -05:00
Kconfig	tracing: Fix Kconfig indentation	2019-11-22 19:41:08 -05:00
Makefile
power-traces.c
preemptirq_delay_test.c	preemptirq_delay_test: Add the burst feature and a sysfs trigger	2019-11-13 09:37:28 -05:00
ring_buffer_benchmark.c	ring-buffer: Fix typos in function ring_buffer_producer	2019-11-22 19:41:08 -05:00
ring_buffer.c
rpm-traces.c
trace_benchmark.c
trace_benchmark.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_branch.c	tracing: Use generic type for comparator function	2019-11-14 13:15:11 -05:00
trace_clock.c
trace_dynevent.c	tracing: Add tracing_check_open_get_tr()	2019-10-12 20:44:07 -04:00
trace_dynevent.h
trace_entries.h
trace_event_perf.c	tracing: Fix race in perf_trace_buf initialization	2019-10-21 19:38:28 -04:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Have error path in predicate_parse() free its allocated memory	2019-09-28 17:13:39 -04:00
trace_events_hist.c	tracing: Increase SYNTH_FIELDS_MAX for synthetic_events	2019-11-15 11:30:29 -05:00
trace_events_trigger.c	tracing: Add locked_down checks to the open calls of files created for tracefs	2019-10-12 20:48:06 -04:00
trace_events.c	tracing: Adding new functions for kernel access to Ftrace instances	2019-11-22 19:41:08 -05:00
trace_export.c	tracing: Make internal ftrace events static	2019-11-13 09:37:29 -05:00
trace_functions_graph.c
trace_functions.c
trace_hwlat.c	tracing/hwlat: Fix a few trivial nits	2019-11-14 13:15:11 -05:00
trace_irqsoff.c	The biggest change for this release is in the histogram code.	2019-03-11 17:01:32 -07:00
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_kprobe.c	tracing/kprobe: Check whether the non-suffixed symbol is notrace	2019-11-14 13:15:12 -05:00
trace_mmiotrace.c
trace_nop.c
trace_output.c	tracing: Use seq_buf_hex_dump() to dump buffers	2019-11-14 13:15:12 -05:00
trace_output.h
trace_preemptirq.c
trace_printk.c	tracing: Add locked_down checks to the open calls of files created for tracefs	2019-10-12 20:48:06 -04:00
trace_probe_tmpl.h
trace_probe.c	tracing/probe: Fix to check the difference of nr_args before adding probe	2019-09-28 17:07:53 -04:00
trace_probe.h	tracing/probe: Reject exactly same probe event	2019-09-19 11:09:16 -04:00
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c
trace_seq.c	tracing: Use seq_buf_hex_dump() to dump buffers	2019-11-14 13:15:12 -05:00
trace_stack.c	tracing: Add locked_down checks to the open calls of files created for tracefs	2019-10-12 20:48:06 -04:00
trace_stat.c	tracing: Use generic type for comparator function	2019-11-14 13:15:11 -05:00
trace_stat.h	tracing: Use generic type for comparator function	2019-11-14 13:15:11 -05:00
trace_syscalls.c	tracing: Use xarray for syscall trace events	2019-11-22 19:47:41 -05:00
trace_uprobe.c	tracing: Add locked_down checks to the open calls of files created for tracefs	2019-10-12 20:48:06 -04:00
trace.c	tracing: Adding new functions for kernel access to Ftrace instances	2019-11-22 19:41:08 -05:00
trace.h	tracing: Adding new functions for kernel access to Ftrace instances	2019-11-22 19:41:08 -05:00
tracing_map.c
tracing_map.h