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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-03-05 15:03:25 -0800
committerIngo Molnar <mingo@elte.hu>2010-03-11 13:38:01 +0100
commit3f379b03fbfddd20536389a85c6456f8233d1f8d (patch)
tree2847590a23aa0d72e799bd6d65a8a794abb565ac /kernel/kfifo.c
parent54dbf96c921513bf98484a20ef366d51944a4c4d (diff)
ftrace: Replace read_barrier_depends() with rcu_dereference_raw()
Replace the calls to read_barrier_depends() in ftrace_list_func() with rcu_dereference_raw() to improve readability. The reason that we use rcu_dereference_raw() here is that removed entries are never freed, instead they are simply leaked. This is one of a very few cases where use of rcu_dereference_raw() is the long-term right answer. And I don't yet know of any others. ;-) Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267830207-9474-1-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kfifo.c')
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