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[PATCH 0/3] rcu - removing superfluous rcu_read_lock_held check [message #41957] Mon, 01 November 2010 19:15 Go to previous message
Jiri Olsa is currently offline  Jiri Olsa
Messages: 6
Registered: November 2010
Junior Member
hi,

the rcu_dereference_check is defined as

#define rcu_dereference_check(p, c) \
__rcu_dereference_check((p), rcu_read_lock_held() || (c), __rcu)

so the caller does not need to specify rcu_read_lock_held()
condition.

Several places in kernel are spcifying rcu_read_lock_held as
rcu_dereference_check condition parameter. I separated them
into 3 patches:

1/3 - cgroup - removing superfluous rcu_read_lock_held check
2/3 - kernel,cred,kvm,security - removing superfluous rcu_read_lock_held check
3/3 - net - removing superfluous rcu_read_lock_held check


sry if I might missed or added somebody wrongly to recipients

wbr,
jirka


Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
include/linux/cgroup.h | 1 -
include/linux/cred.h | 1 -
include/linux/fdtable.h | 1 -
include/linux/kvm_host.h | 1 -
include/linux/rtnetlink.h | 3 +--
include/net/sock.h | 3 +--
kernel/cgroup.c | 6 ++----
kernel/exit.c | 1 -
kernel/pid.c | 1 -
kernel/rcutorture.c | 2 --
net/mac80211/sta_info.c | 4 ----
net/netlabel/netlabel_domainhash.c | 3 +--
net/netlabel/netlabel_unlabeled.c | 3 +--
security/keys/keyring.c | 1 -
14 files changed, 6 insertions(+), 25 deletions(-)
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