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filp_cachep can be static in fs/file_table.c

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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 <[email protected]>

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Eric Dumazet authored and Al Viro committed 2008-12-31 18:07:42 -05:00
1 parent fd659fd627
commit b6b3fdead2
3 files changed
+9 -9
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fs/dcache.c
-6
View File
@@ -2314,9 +2314,6 @@ static void __init dcache_init(void)
/* SLAB cache for __getname() consumers */
struct kmem_cache *names_cachep __read_mostly;
/* SLAB cache for file structures */
struct kmem_cache *filp_cachep __read_mostly;
EXPORT_SYMBOL(d_genocide);
void __init vfs_caches_init_early(void)
@@ -2338,9 +2335,6 @@ void __init vfs_caches_init(unsigned long mempages)
names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
filp_cachep = kmem_cache_create("filp", sizeof(struct file), 0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
dcache_init();
inode_init();
files_init(mempages);
fs/file_table.c
+9 -1
View File
@@ -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.
*/
include/linux/fdtable.h
-2
View File
@@ -57,8 +57,6 @@ struct files_struct {
#define files_fdtable(files) (rcu_dereference((files)->fdt))
extern struct kmem_cache *filp_cachep;
struct file_operations;
struct vfsmount;
struct dentry;