Messages in this thread Patch in this message | | | From | Rasmus Villemoes <> | Subject | [POC 09/12] fs/inode.c: access inode_cachep via rai_load | Date | Thu, 18 Oct 2018 00:33:29 +0200 |
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This avoids a cacheline access to get the value of the inode_cachep pointer in the places that do a kmem_cache_*(inode_cachep, ...);
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> --- fs/inode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/inode.c b/fs/inode.c index 42f6d25f32a5..f1e9f548494e 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -19,6 +19,7 @@ #include <linux/ratelimit.h> #include <linux/list_lru.h> #include <linux/iversion.h> +#include <linux/rai.h> #include <trace/events/writeback.h> #include "internal.h" @@ -74,7 +75,8 @@ struct inodes_stat_t inodes_stat; static DEFINE_PER_CPU(unsigned long, nr_inodes); static DEFINE_PER_CPU(unsigned long, nr_unused); -static struct kmem_cache *inode_cachep __read_mostly; +static struct kmem_cache *__inode_cachep __read_mostly; +#define inode_cachep rai_load(__inode_cachep) static long get_nr_inodes(void) { @@ -1951,7 +1953,7 @@ void __init inode_init_early(void) void __init inode_init(void) { /* inode slab cache */ - inode_cachep = kmem_cache_create("inode_cache", + __inode_cachep = kmem_cache_create("inode_cache", sizeof(struct inode), 0, (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC| -- 2.19.1.6.gbde171bbf5
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