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percpu: use DEFINE_PER_CPU_SHARED_ALIGNED()

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There are a few places where ___cacheline_aligned* is used with
DEFINE_PER_CPU().  Use DEFINE_PER_CPU_SHARED_ALIGNED() instead.

DEFINE_PER_CPU_SHARED_ALIGNED() applies alignment only on SMPs.  While
all other converted places used _in_smp variant or only get compiled
for SMP, net/rds used unconditional ____cacheline_aligned.  I don't
see any reason these data structures should be aligned on UP and thus
converted together.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Andy Grover <andy.grover@oracle.com>
This commit is contained in:
Tejun Heo
2009-06-24 15:13:47 +09:00
parent 204fba4aa3
commit b9bf3121af
6 changed files with 10 additions and 9 deletions
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2
net/rds/ib_stats.c
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@@ -37,7 +37,7 @@
#include "rds.h"
#include "ib.h"
DEFINE_PER_CPU(struct rds_ib_statistics, rds_ib_stats) ____cacheline_aligned;
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
static char *rds_ib_stat_names[] = {
"ib_connect_raced",

2
net/rds/iw_stats.c
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@@ -37,7 +37,7 @@
#include "rds.h"
#include "iw.h"
DEFINE_PER_CPU(struct rds_iw_statistics, rds_iw_stats) ____cacheline_aligned;
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_iw_statistics, rds_iw_stats);
static char *rds_iw_stat_names[] = {
"iw_connect_raced",

2
net/rds/page.c
View File

@@ -39,7 +39,7 @@ struct rds_page_remainder {
unsigned long r_offset;
};
DEFINE_PER_CPU(struct rds_page_remainder, rds_page_remainders) ____cacheline_aligned;
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_page_remainder, rds_page_remainders);
/*
* returns 0 on success or -errno on failure.