Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Rasmus Villemoes ff14417c0a kernel/trace/blktrace.c: use strreplace() in do_blk_trace_setup() ... Part of the disassembly of do_blk_trace_setup: 231b: e8 00 00 00 00 callq 2320 <do_blk_trace_setup+0x50> 231c: R_X86_64_PC32 strlen+0xfffffffffffffffc 2320: eb 0a jmp 232c <do_blk_trace_setup+0x5c> 2322: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 2328: 48 83 c3 01 add $0x1,%rbx 232c: 48 39 d8 cmp %rbx,%rax 232f: 76 47 jbe 2378 <do_blk_trace_setup+0xa8> 2331: 41 80 3c 1c 2f cmpb $0x2f,(%r12,%rbx,1) 2336: 75 f0 jne 2328 <do_blk_trace_setup+0x58> 2338: 41 c6 04 1c 5f movb $0x5f,(%r12,%rbx,1) 233d: 4c 89 e7 mov %r12,%rdi 2340: e8 00 00 00 00 callq 2345 <do_blk_trace_setup+0x75> 2341: R_X86_64_PC32 strlen+0xfffffffffffffffc 2345: eb e1 jmp 2328 <do_blk_trace_setup+0x58> Yep, that's right: gcc isn't smart enough to realize that replacing '/' by '_' cannot change the strlen(), so we call it again and again (at least when a '/' is found). Even if gcc were that smart, this construction would still loop over the string twice, once for the initial strlen() call and then the open-coded loop. Let's simply use strreplace() instead. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: Steven Rostedt <rostedt@goodmis.org> Liked-by: Jens Axboe <axboe@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-06-25 17:00:40 -07:00
..
blktrace.c	kernel/trace/blktrace.c: use strreplace() in do_blk_trace_setup()	2015-06-25 17:00:40 -07:00
bpf_trace.c	bpf: let kprobe programs use bpf_get_smp_processor_id() helper	2015-06-15 15:53:50 -07:00
ftrace.c	Some clean ups and small fixes, but the biggest change is the addition	2015-04-14 10:49:03 -07:00
Kconfig	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-14 14:37:47 -07:00
Makefile	bpf: Fix the build on BPF_SYSCALL=y && !CONFIG_TRACING kernels, make it more configurable	2015-04-02 16:28:06 +02:00
power-traces.c	PM / sleep: export suspend_resume trace event	2015-01-30 02:10:41 +01:00
ring_buffer.c	ring-buffer: Remove duplicate use of '&' in recursive code	2015-03-30 13:36:31 -04:00
ring_buffer_benchmark.c	ring-buffer-benchmark: Fix the wrong sched_priority of producer	2015-06-11 09:27:58 -04:00
rpm-traces.c
trace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
trace.h	Some clean ups and small fixes, but the biggest change is the addition	2015-04-14 10:49:03 -07:00
trace_benchmark.c	tracing: Only calculate stats of tracepoint benchmarks for 2^32 times	2014-06-06 00:41:38 -04:00
trace_benchmark.h	tracing: Add tracepoint benchmark tracepoint	2014-05-29 22:49:54 -04:00
trace_branch.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_clock.c	tracing: Fix wraparound problems in "uptime" trace clock	2014-07-21 09:56:12 -04:00
trace_entries.h	tracing: %pF is only for function pointers	2015-03-25 08:57:22 -04:00
trace_event_perf.c	perf: Avoid horrible stack usage	2015-01-14 15:11:45 +01:00
trace_events.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
trace_events_filter.c	kernel/trace/trace_events_filter.c: use strreplace()	2015-06-25 17:00:40 -07:00
trace_events_filter_test.h
trace_events_trigger.c	trace: Replace single-character seq_puts with seq_putc	2014-11-14 07:55:55 -05:00
trace_export.c	tracing: remove ftrace:function TRACE_EVENT_FL_USE_CALL_FILTER flag	2015-03-25 08:57:23 -04:00
trace_functions.c	tracing/trivial: Fix typos and make an int into a bool	2014-11-20 10:05:36 -05:00
trace_functions_graph.c	This adds three fixes for the tracing code.	2015-04-22 11:27:36 -07:00
trace_irqsoff.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_kdb.c	KGDB/KDB fixes and cleanups	2015-01-09 20:51:10 -08:00
trace_kprobe.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-14 14:37:47 -07:00
trace_mmiotrace.c	tracing: Do not check return values of trace_seq_p*() for mmio tracer	2014-11-19 15:25:44 -05:00
trace_nop.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_output.c	tracing: Make ftrace_print_array_seq compute buf_len	2015-05-06 23:03:23 -04:00
trace_output.h	tracing: Add trace_seq_has_overflowed() and trace_handle_return()	2014-11-19 15:25:39 -05:00
trace_printk.c	tracing: Use IS_ERR() check for return value of tracing_init_dentry()	2015-01-22 11:19:49 -05:00
trace_probe.c	trace: Don't use __weak in header files	2015-03-25 08:57:23 -04:00
trace_probe.h	Some clean ups and small fixes, but the biggest change is the addition	2015-04-14 10:49:03 -07:00
trace_sched_switch.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_sched_wakeup.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_selftest.c	Seems that Peter Zijlstra added a new check that is making old	2014-10-12 07:28:55 -04:00
trace_selftest_dynamic.c
trace_seq.c	tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:37 -08:00
trace_stack.c	tracing: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
trace_stat.c	tracing: Convert the tracing facility over to use tracefs	2015-02-03 12:48:41 -05:00
trace_stat.h
trace_syscalls.c	perf: Avoid horrible stack usage	2015-01-14 15:11:45 +01:00
trace_uprobe.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00