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authorChristoph Hellwig <hch@infradead.org>2010-10-10 05:36:22 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2010-10-25 21:26:12 -0400
commit9c82ab9c9e16cb9edf17bd0d31f3d6904afce04f (patch)
tree82701029a920b1550f1234a8630ff0243ac3651c /fs/dcache.c
parentbe148247cfbe2422f5709e77d9c3e10b8a6394da (diff)
downloadlwn-9c82ab9c9e16cb9edf17bd0d31f3d6904afce04f.tar.gz
lwn-9c82ab9c9e16cb9edf17bd0d31f3d6904afce04f.zip
fs: simplify __d_free
Remove d_callback and always call __d_free with a RCU head. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index 54f93f5e6b0f..028753951e95 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -67,20 +67,16 @@ struct dentry_stat_t dentry_stat = {
.age_limit = 45,
};
-static void __d_free(struct dentry *dentry)
+static void __d_free(struct rcu_head *head)
{
+ struct dentry *dentry = container_of(head, struct dentry, d_u.d_rcu);
+
WARN_ON(!list_empty(&dentry->d_alias));
if (dname_external(dentry))
kfree(dentry->d_name.name);
kmem_cache_free(dentry_cache, dentry);
}
-static void d_callback(struct rcu_head *head)
-{
- struct dentry * dentry = container_of(head, struct dentry, d_u.d_rcu);
- __d_free(dentry);
-}
-
/*
* no dcache_lock, please. The caller must decrement dentry_stat.nr_dentry
* inside dcache_lock.
@@ -91,9 +87,9 @@ static void d_free(struct dentry *dentry)
dentry->d_op->d_release(dentry);
/* if dentry was never inserted into hash, immediate free is OK */
if (hlist_unhashed(&dentry->d_hash))
- __d_free(dentry);
+ __d_free(&dentry->d_u.d_rcu);
else
- call_rcu(&dentry->d_u.d_rcu, d_callback);
+ call_rcu(&dentry->d_u.d_rcu, __d_free);
}
/*