filp_cachep can be static in fs/file_table.c

Instead of creating the "filp" kmem_cache in vfs_caches_init(),
we can do it a litle be later in files_init(), so that filp_cachep
is static to fs/file_table.c

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 9 insertions, 1 deletions

diff --git a/fs/file_table.c b/fs/file_table.c
index 0fbcacc3ea75..bbeeac6efa1a 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -32,6 +32,9 @@ struct files_stat_struct files_stat = {
 /* public. Not pretty! */
 __cacheline_aligned_in_smp DEFINE_SPINLOCK(files_lock);
 
+/* SLAB cache for file structures */
+static struct kmem_cache *filp_cachep __read_mostly;
+
 static struct percpu_counter nr_files __cacheline_aligned_in_smp;
 
 static inline void file_free_rcu(struct rcu_head *head)
@@ -397,7 +400,12 @@ too_bad:
 void __init files_init(unsigned long mempages)
 { 
         int n; 
-        /* One file with associated inode and dcache is very roughly 1K. 
+
+        filp_cachep = kmem_cache_create("filp", sizeof(struct file), 0,
+                        SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
+
+        /*
+         * One file with associated inode and dcache is very roughly 1K.
          * Per default don't use more than 10% of our memory for files. 
          */