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Commit c8aebb0c authored by Al Viro's avatar Al Viro
Browse files

per-superblock default ->d_op 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 4162cf64

fs/dcache.c

+4 −0
Original line number Diff line number Diff line
@@ -1320,6 +1320,7 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name) 
		__dget_dlock(parent);

		dentry->d_parent = parent;

		dentry->d_sb = parent->d_sb;

		d_set_d_op(dentry, dentry->d_sb->s_d_op);

		list_add(&dentry->d_u.d_child, &parent->d_subdirs);

		spin_unlock(&parent->d_lock);

	}
@@ -1335,6 +1336,7 @@ struct dentry *d_alloc_pseudo(struct super_block *sb, const struct qstr *name) 
	struct dentry *dentry = d_alloc(NULL, name);

	if (dentry) {

		dentry->d_sb = sb;

		d_set_d_op(dentry, dentry->d_sb->s_d_op);

		dentry->d_parent = dentry;

		dentry->d_flags |= DCACHE_DISCONNECTED;

	}
@@ -1507,6 +1509,7 @@ struct dentry * d_alloc_root(struct inode * root_inode) 
		res = d_alloc(NULL, &name);

		if (res) {

			res->d_sb = root_inode->i_sb;

			d_set_d_op(res, res->d_sb->s_d_op);

			res->d_parent = res;

			d_instantiate(res, root_inode);

		}
@@ -1567,6 +1570,7 @@ struct dentry *d_obtain_alias(struct inode *inode) 
	/* attach a disconnected dentry */

	spin_lock(&tmp->d_lock);

	tmp->d_sb = inode->i_sb;

	d_set_d_op(tmp, tmp->d_sb->s_d_op);

	tmp->d_inode = inode;

	tmp->d_flags |= DCACHE_DISCONNECTED;

	list_add(&tmp->d_alias, &inode->i_dentry);

include/linux/fs.h

+1 −0
Original line number Diff line number Diff line
@@ -1423,6 +1423,7 @@ struct super_block { 
	 * generic_show_options()

	 */

	char __rcu *s_options;

	const struct dentry_operations *s_d_op; /* default d_op for dentries */

};



extern struct timespec current_fs_time(struct super_block *sb);