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| author |   David Howells <dhowells@redhat.com> | 2009-04-03 16:42:38 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:38 +0100 |
| commit | 955d00917f0c094e0f2fb88df967e980ab66b8ca (patch) | |
| tree | c6109684239fd45462e494fb4f26aa8e2e651922 /fs/fscache/main.c | |
| parent | FS-Cache: Add cache management (diff) | |
| download | linux-dev-955d00917f0c094e0f2fb88df967e980ab66b8ca.tar.xz linux-dev-955d00917f0c094e0f2fb88df967e980ab66b8ca.zip | |
FS-Cache: Provide a slab for cookie allocation
Provide a slab from which can be allocated the FS-Cache cookies that will be
presented to the netfs.
Also provide a slab constructor and a function to recursively discard a cookie
and its ancestor chain.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'fs/fscache/main.c')
| -rw-r--r-- | fs/fscache/main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/fscache/main.c b/fs/fscache/main.c index c2f3e637725d..48b79d2deac1 100644 --- a/fs/fscache/main.c +++ b/fs/fscache/main.c @@ -56,6 +56,18 @@ static int __init fscache_init(void) if (ret < 0) goto error_proc; + fscache_cookie_jar = kmem_cache_create("fscache_cookie_jar", + sizeof(struct fscache_cookie), + 0, + 0, + fscache_cookie_init_once); + if (!fscache_cookie_jar) { + printk(KERN_NOTICE + "FS-Cache: Failed to allocate a cookie jar\n"); + ret = -ENOMEM; + goto error_cookie_jar; + } + fscache_root = kobject_create_and_add("fscache", kernel_kobj); if (!fscache_root) goto error_kobj; @@ -64,6 +76,8 @@ static int __init fscache_init(void) return 0; error_kobj: + kmem_cache_destroy(fscache_cookie_jar); +error_cookie_jar: fscache_proc_cleanup(); error_proc: slow_work_unregister_user(); @@ -81,6 +95,7 @@ static void __exit fscache_exit(void) _enter(""); kobject_put(fscache_root); + kmem_cache_destroy(fscache_cookie_jar); fscache_proc_cleanup(); slow_work_unregister_user(); printk(KERN_NOTICE "FS-Cache: Unloaded\n"); |