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rcu: Clean up code based on review feedback from Josh Triplett, part 3

Browse source 
Whitespace fixes, updated comments, and trivial code movement.

o	Fix whitespace error in RCU_HEAD_INIT()

o	Move "So where is rcu_write_lock()" comment so that it does
	not come between the rcu_read_unlock() header comment and
	the rcu_read_unlock() definition.

o	Move the module_param statements for blimit, qhimark, and
	qlowmark to immediately follow the corresponding
	definitions.

o	In __rcu_offline_cpu(), move the assignment to rdp_me
	inside the "if" statement, given that rdp_me is not used
	outside of that "if" statement.

Signed-off-by: Paul E. McKenney <[email protected]>
Cc: [email protected]
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Cc: [email protected]
Cc: [email protected]
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LKML-Reference: <12541491931164-git-send-email->
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Paul E. McKenney 2009-09-28 07:46:32 -07:00 • committed by Ingo Molnar
commit 3d76c08290
2 changed files with 12 additions and 12 deletions
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10
kernel/rcutree.c
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@ -122,6 +122,10 @@ static int blimit = 10; /* Maximum callbacks per softirq. */
static int qhimark = 10000; /* If this many pending, ignore blimit. */
static int qlowmark = 100; /* Once only this many pending, use blimit. */
module_param(blimit, int, 0);
module_param(qhimark, int, 0);
module_param(qlowmark, int, 0);
static void force_quiescent_state(struct rcu_state *rsp, int relaxed);
static int rcu_pending(int cpu);
@ -878,8 +882,8 @@ static void __rcu_offline_cpu(int cpu, struct rcu_state *rsp)
* indefinitely delay callbacks, you have far worse things to
* be worrying about.
*/
rdp_me = rsp->rda[smp_processor_id()];
if (rdp->nxtlist != NULL) {
rdp_me = rsp->rda[smp_processor_id()];
*rdp_me->nxttail[RCU_NEXT_TAIL] = rdp->nxtlist;
rdp_me->nxttail[RCU_NEXT_TAIL] = rdp->nxttail[RCU_NEXT_TAIL];
rdp->nxtlist = NULL;
@ -1575,7 +1579,3 @@ void __init __rcu_init(void)
}
#include "rcutree_plugin.h"
module_param(blimit, int, 0);
module_param(qhimark, int, 0);
module_param(qlowmark, int, 0);