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d_walk(): kill 'finish' callback

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2018-04-15 18:27:23 -04:00
parent ff17fa561a
commit 3a8e3611e0
1 changed files with 7 additions and 11 deletions
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18
fs/dcache.c
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@ -1230,13 +1230,11 @@ enum d_walk_ret {
* @parent: start of walk * @parent: start of walk
* @data: data passed to @enter() and @finish() * @data: data passed to @enter() and @finish()
* @enter: callback when first entering the dentry * @enter: callback when first entering the dentry
* @finish: callback when successfully finished the walk
* *
* The @enter() and @finish() callbacks are called with d_lock held. * The @enter() callbacks are called with d_lock held.
*/ */
static void d_walk(struct dentry *parent, void *data, static void d_walk(struct dentry *parent, void *data,
enum d_walk_ret (*enter)(void *, struct dentry *), enum d_walk_ret (*enter)(void *, struct dentry *))
void (*finish)(void *))
{ {
struct dentry *this_parent; struct dentry *this_parent;
struct list_head *next; struct list_head *next;
@ -1325,8 +1323,6 @@ static void d_walk(struct dentry *parent, void *data,
if (need_seqretry(&rename_lock, seq)) if (need_seqretry(&rename_lock, seq))
goto rename_retry; goto rename_retry;
rcu_read_unlock(); rcu_read_unlock();
if (finish)
finish(data);
out_unlock: out_unlock:
spin_unlock(&this_parent->d_lock); spin_unlock(&this_parent->d_lock);
@ -1375,7 +1371,7 @@ int path_has_submounts(const struct path *parent)
struct check_mount data = { .mnt = parent->mnt, .mounted = 0 }; struct check_mount data = { .mnt = parent->mnt, .mounted = 0 };
read_seqlock_excl(&mount_lock); read_seqlock_excl(&mount_lock);
d_walk(parent->dentry, &data, path_check_mount, NULL); d_walk(parent->dentry, &data, path_check_mount);
read_sequnlock_excl(&mount_lock); read_sequnlock_excl(&mount_lock);
return data.mounted; return data.mounted;
@ -1483,7 +1479,7 @@ void shrink_dcache_parent(struct dentry *parent)
data.start = parent; data.start = parent;
data.found = 0; data.found = 0;
d_walk(parent, &data, select_collect, NULL); d_walk(parent, &data, select_collect);
if (!data.found) if (!data.found)
break; break;
@ -1518,7 +1514,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
static void do_one_tree(struct dentry *dentry) static void do_one_tree(struct dentry *dentry)
{ {
shrink_dcache_parent(dentry); shrink_dcache_parent(dentry);
d_walk(dentry, dentry, umount_check, NULL); d_walk(dentry, dentry, umount_check);
d_drop(dentry); d_drop(dentry);
dput(dentry); dput(dentry);
} }
@ -1575,7 +1571,7 @@ void d_invalidate(struct dentry *dentry)
shrink_dcache_parent(dentry); shrink_dcache_parent(dentry);
for (;;) { for (;;) {
struct dentry *victim = NULL; struct dentry *victim = NULL;
d_walk(dentry, &victim, find_submount, NULL); d_walk(dentry, &victim, find_submount);
if (!victim) { if (!victim) {
if (had_submounts) if (had_submounts)
shrink_dcache_parent(dentry); shrink_dcache_parent(dentry);
@ -3082,7 +3078,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
void d_genocide(struct dentry *parent) void d_genocide(struct dentry *parent)
{ {
d_walk(parent, parent, d_genocide_kill, NULL); d_walk(parent, parent, d_genocide_kill);
} }
EXPORT_SYMBOL(d_genocide); EXPORT_SYMBOL(d_genocide);