Oleg Nesterov e6bc60b8fb tracing: Fix syscall_*regfunc() vs copy_process() race ... commit 4af4206be2bd1933cae20c2b6fb2058dbc887f7c upstream. syscall_regfunc() and syscall_unregfunc() should set/clear TIF_SYSCALL_TRACEPOINT system-wide, but do_each_thread() can race with copy_process() and miss the new child which was not added to the process/thread lists yet. Change copy_process() to update the child's TIF_SYSCALL_TRACEPOINT under tasklist. Link: http://lkml.kernel.org/p/20140413185854.GB20668@redhat.com Fixes: a871bd33a6 "tracing: Add syscall tracepoints" Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-07-06 18:54:16 -07:00
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events	trace: module: Maintain a valid user count	2014-06-07 13:25:35 -07:00
define_trace.h	treewide: fix comment/printk/variable typos	2012-09-01 10:33:05 -07:00
ftrace.h	tracing: Fix array size mismatch in format string	2014-03-31 09:58:12 -07:00
syscall.h	tracing: Fix syscall_*regfunc() vs copy_process() race	2014-07-06 18:54:16 -07:00