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Commit c4931db9 authored by Al Viro's avatar Al Viro
Browse files

get rid of autofs_info->active_count 



autofs_add_active() is always called only once (and on a dentry
with freshly allocated ino, at that).  autofs_del_active() is
never called more than once.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent ff09297e

fs/autofs/autofs_i.h

+0 −1
Original line number Diff line number Diff line
@@ -58,7 +58,6 @@ struct autofs_info { 
	struct completion expire_complete;



	struct list_head active;

	int active_count;



	struct list_head expiring;

fs/autofs/root.c

+6 −27
Original line number Diff line number Diff line
@@ -60,39 +60,16 @@ const struct dentry_operations autofs_dentry_operations = { 
	.d_release	= autofs_dentry_release,

};



static void autofs_add_active(struct dentry *dentry)

{

	struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);

	struct autofs_info *ino;



	ino = autofs_dentry_ino(dentry);

	if (ino) {

		spin_lock(&sbi->lookup_lock);

		if (!ino->active_count) {

			if (list_empty(&ino->active))

				list_add(&ino->active, &sbi->active_list);

		}

		ino->active_count++;

		spin_unlock(&sbi->lookup_lock);

	}

}



static void autofs_del_active(struct dentry *dentry)

{

	struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);

	struct autofs_info *ino;



	ino = autofs_dentry_ino(dentry);

	if (ino) {

	spin_lock(&sbi->lookup_lock);

		ino->active_count--;

		if (!ino->active_count) {

			if (!list_empty(&ino->active))

	list_del_init(&ino->active);

		}

	spin_unlock(&sbi->lookup_lock);

}

}



static int autofs_dir_open(struct inode *inode, struct file *file)

{
@@ -539,7 +516,9 @@ static struct dentry *autofs_lookup(struct inode *dir, 
		dentry->d_fsdata = ino;

		ino->dentry = dentry;



		autofs_add_active(dentry);

		spin_lock(&sbi->lookup_lock);

		list_add(&ino->active, &sbi->active_list);

		spin_unlock(&sbi->lookup_lock);

	}

	return NULL;

}