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overlayfs: embed root into overlay_readdir_data

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no sense having it a pointer - all instances have it pointing to
local variable in the same stack frame

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-10-23 23:00:53 -04:00
parent 68bf861107
commit 49be4fb9cc
1 changed files with 5 additions and 6 deletions
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11
fs/overlayfs/readdir.c
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@ -36,7 +36,7 @@ struct ovl_dir_cache {
struct ovl_readdir_data {
struct dir_context ctx;
bool is_merge;
struct rb_root *root;
struct rb_root root;
struct list_head *list;
struct list_head *middle;
int count;
@ -101,7 +101,7 @@ static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd,
const char *name, int len, u64 ino,
unsigned int d_type)
{
struct rb_node **newp = &rdd->root->rb_node;
struct rb_node **newp = &rdd->root.rb_node;
struct rb_node *parent = NULL;
struct ovl_cache_entry *p;
@ -126,7 +126,7 @@ static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd,
list_add_tail(&p->l_node, rdd->list);
rb_link_node(&p->node, parent, newp);
rb_insert_color(&p->node, rdd->root);
rb_insert_color(&p->node, &rdd->root);
return 0;
}
@ -137,7 +137,7 @@ static int ovl_fill_lower(struct ovl_readdir_data *rdd,
{
struct ovl_cache_entry *p;
p = ovl_cache_entry_find(rdd->root, name, namelen);
p = ovl_cache_entry_find(&rdd->root, name, namelen);
if (p) {
list_move_tail(&p->l_node, rdd->middle);
} else {
@ -277,12 +277,11 @@ static inline int ovl_dir_read_merged(struct path *upperpath,
struct list_head *list)
{
int err;
struct rb_root root = RB_ROOT;
struct list_head middle;
struct ovl_readdir_data rdd = {
.ctx.actor = ovl_fill_merge,
.list = list,
.root = &root,
.root = RB_ROOT,
.is_merge = false,
};