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vfs: fix the stupidity with i_dentry in inode destructors

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Seeing that just about every destructor got that INIT_LIST_HEAD() copied into
it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();
the cost of taking it into inode_init_always() will be negligible for pipes
and sockets and negative for everything else.  Not to mention the removal of
boilerplate code from ->destroy_inode() instances...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2011-12-12 15:51:45 -05:00
parent 2a79f17e4a
commit 6b520e0565
53 changed files with 1 additions and 55 deletions
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3
fs/inode.c
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@@ -191,6 +191,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
}
inode->i_private = NULL;
inode->i_mapping = mapping;
INIT_LIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */
#ifdef CONFIG_FS_POSIX_ACL
inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
#endif
@@ -254,7 +255,6 @@ EXPORT_SYMBOL(__destroy_inode);
static void i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(inode_cachep, inode);
}
@@ -290,7 +290,6 @@ void inode_init_once(struct inode *inode)
{
memset(inode, 0, sizeof(*inode));
INIT_HLIST_NODE(&inode->i_hash);
INIT_LIST_HEAD(&inode->i_dentry);
INIT_LIST_HEAD(&inode->i_devices);
INIT_LIST_HEAD(&inode->i_wb_list);
INIT_LIST_HEAD(&inode->i_lru);