Re: [PATCH 12/22][RFC] Unionfs: Main module functions

[Jan Engelhardt <jengelh@linux01.gwdg.de>]

>+/* checks if two hidden_dentries have overlapping branches */
>+int is_branch_overlap(struct dentry *dent1, struct dentry *dent2)
>+{
>+	struct dentry *dent = NULL;
>+
>+	dent = dent1;
>+	while ((dent != dent2) && (dent->d_parent != dent)) {
>+		dent = dent->d_parent;
>+	}
>+	if (dent == dent2) {
>+		return 1;
>+	}
>+
>+	dent = dent2;
>+	while ((dent != dent1) && (dent->d_parent != dent)) {
>+		dent = dent->d_parent;
>+	}
>+	if (dent == dent1) {
>+		return 1;
>+	}
>+
>+	return 0;
>+}
-()-{} Also elsewhere.

>+	struct dentry *dent1 = NULL;
>+	struct dentry *dent2 = NULL;

Is it necessary to set these to NULL?

>+		for (i = 0; i < branches; i++) {
>+			if (hidden_root_info->udi_dentry[i])
>+				dput(hidden_root_info->udi_dentry[i]);
>+		}


>+MODULE_AUTHOR("Filesystems and Storage Lab, Stony Brook University"
>+		" (http://www.fsl.cs.sunysb.edu/)");

Should probably have at least one human person in the list.


Jan Engelhardt
-- 

-- 
VGER BF report: H 4.15867e-12
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