Merge tag 'configfs-for-5.2-2' of git://git.infradead.org/users/hch/configfs (8cb7104d) · Commits · 戴 / test

fs/configfs/dir.c

+6 −8

Original line number	Diff line number	Diff line
		@@ -58,15 +58,13 @@ static void configfs_d_iput(struct dentry * dentry,
		if (sd) {
		/* Coordinate with configfs_readdir */
		spin_lock(&configfs_dirent_lock);
		/* Coordinate with configfs_attach_attr where will increase
		* sd->s_count and update sd->s_dentry to new allocated one.
		* Only set sd->dentry to null when this dentry is the only
		* sd owner.
		* If not do so, configfs_d_iput may run just after
		* configfs_attach_attr and set sd->s_dentry to null
		* even it's still in use.
		/*
		* Set sd->s_dentry to null only when this dentry is the one
		* that is going to be killed. Otherwise configfs_d_iput may
		* run just after configfs_attach_attr and set sd->s_dentry to
		* NULL even it's still in use.
		*/
		if (atomic_read(&sd->s_count) <= 2)
		if (sd->s_dentry == dentry)
		sd->s_dentry = NULL;

		spin_unlock(&configfs_dirent_lock);