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![]() perf_counter tools: Add locking to perf top We need to protect the active_symbols list as two threads change it: the main thread adding entries to the head and the display thread decaying entries from any place in the list. Also related: take a snapshot of syme->count[0] before using it to calculate the weight and to show the same number used in this calc when displaying the symbol usage. Reported-by: Mike Galbraith <efault@gmx.de> Tested-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20090529200307.GR4747@ghostprotocols.net> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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.. | ||
Documentation | ||
util | ||
.gitignore | ||
builtin-help.c | ||
builtin-record.c | ||
builtin-report.c | ||
builtin-stat.c | ||
builtin-top.c | ||
builtin.h | ||
command-list.txt | ||
design.txt | ||
Makefile | ||
perf.c | ||
perf.h |