[Ocfs2-devel] [PATCH] kill allchild iterators
Christoph Hellwig
hch at lst.de
Mon Jul 5 23:23:13 CDT 2004
iterating over all childs is really a rather bad idea in a unix fs, so
let's kill the if 0'ed code and all the child iteration code behind it
that's now unused.
Index: src/dcache.c
===================================================================
--- src/dcache.c (revision 1238)
+++ src/dcache.c (working copy)
@@ -112,37 +112,3 @@
.d_revalidate = ocfs_dentry_revalidate24,
};
#endif
-
-/*
- * ocfs_foreach_child()
- *
- */
-int ocfs_foreach_child (struct dentry *dentry, int (*func)(struct dentry *, void *), void *data)
-{
- struct list_head *list;
- int ret, done;
-
- LOG_ENTRY_ARGS ("(0x%p, '%*s')\n", dentry,
- dentry->d_name.len, dentry->d_name.name);
-
- spin_lock (&dcache_lock);
- list = dentry->d_subdirs.next;
-
- ret = 1;
- while (list != &dentry->d_subdirs) {
- struct dentry *de = list_entry (list, struct dentry, d_child);
-
- if (de->d_inode && !d_unhashed (de)) {
- done = func(de, data);
- if (done) {
- ret = 0;
- break;
- }
- }
- list = list->next;
- }
- spin_unlock (&dcache_lock);
-
- LOG_EXIT_INT (ret);
- return ret;
-}
Index: src/dlm.c
===================================================================
--- src/dlm.c (revision 1238)
+++ src/dlm.c (working copy)
@@ -62,7 +62,6 @@
static int ocfs_reset_voting (ocfs_super * osb);
static int ocfs_get_vote_on_disk (ocfs_super * osb, __u64 lock_id, __u32 lock_type, __u32 flags, ocfs_node_map * got_vote_map, ocfs_node_map * vote_map, __u64 lock_seq_num, ocfs_node_map * oin_open_map);
int ocfs_disk_release_lock (ocfs_super * osb, __u64 lock_id, __u32 lock_type, __u32 flags, struct buffer_head *bh, struct inode *inode);
-static int ocfs_zap_child_buffers_func(struct dentry *dentry, void *data);
void ocfs_set_publish_vote_map(ocfs_super *osb, ocfs_publish *publish, ocfs_node_map *vote_map)
@@ -1268,32 +1267,10 @@
} /* ocfs_release_lock */
-/* inode is definitely non NULL */
-static int ocfs_zap_child_buffers_func(struct dentry *dentry, void *data)
-{
- struct inode *inode = dentry->d_inode;
- ocfs_super *osb = data;
-
- ocfs_inc_inode_seq(osb, inode, 0);
- return 0;
-}
-
int ocfs_break_cache_lock_zap_buffers(ocfs_super * osb, struct inode * inode)
{
- struct list_head *iter;
- struct dentry *dentry;
-
- if (inode==NULL)
- return 0;
-
-#warning invalidating child inodes is probably inappropriate now
-#if 0
- list_for_each(iter, &(inode->i_dentry)) {
- dentry = list_entry (iter, struct dentry, d_alias);
- ocfs_foreach_child (dentry, ocfs_zap_child_buffers_func, osb);
- }
-#endif
- ocfs_inc_inode_seq(osb, inode, 0);
+ if (inode)
+ ocfs_inc_inode_seq(osb, inode, 0);
return 0;
}
Index: src/dcache.h
===================================================================
--- src/dcache.h (revision 1238)
+++ src/dcache.h (working copy)
@@ -31,8 +31,4 @@
extern struct dentry_operations ocfs_dentry_ops;
-int ocfs_foreach_child(struct dentry *dentry,
- int (*func)(struct dentry *, void *),
- void *data);
-
#endif /* OCFS2_DCACHE_H */
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