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authorAl Viro <viro@zeniv.linux.org.uk>2011-12-12 15:51:45 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:52:40 -0500
commit6b520e0565422966cdf1c3759bd73df77b0f248c (patch)
treef63a26afa7342eb59b125271b16e30a219b59094 /fs/inode.c
parent2a79f17e4a641a2f463cb512cb0ec349844a147b (diff)
vfs: fix the stupidity with i_dentry in inode destructors
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>
Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 4fda5ee8551..24d02907e19 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -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);