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authorEric Dumazet <dada1@cosmosbay.com>2008-12-10 20:35:45 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2009-01-01 02:07:42 +0300
commitb6b3fdead251d432f32f2cfce2a893ab8a658110 (patch)
tree358885c529fd14d0cc404a454088329533db379e /fs/file_table.c
parentfd659fd6275d3426d7967da1f0e3638bbbd2fedb (diff)
downloadlinux-b6b3fdead251d432f32f2cfce2a893ab8a658110.tar.xz
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>
Diffstat (limited to 'fs/file_table.c')
-rw-r--r--fs/file_table.c10
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.
*/