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| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-12-10 09:35:45 -0800 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-12-31 18:07:42 -0500 |
| commit | b6b3fdead251d432f32f2cfce2a893ab8a658110 (patch) | |
| tree | 358885c529fd14d0cc404a454088329533db379e /fs/file_table.c | |
| parent | fd659fd6275d3426d7967da1f0e3638bbbd2fedb (diff) | |
| download | lwn-b6b3fdead251d432f32f2cfce2a893ab8a658110.tar.gz lwn-b6b3fdead251d432f32f2cfce2a893ab8a658110.zip | |
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.c | 10 |
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. */ |