Re: [RFC][PATCH 8/14] Union-mount lookup

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On May 14 2007 15:12, Bharata B Rao wrote:
> 
>+struct dentry * d_lookup_single(struct dentry *parent, struct qstr *name)
>+{
>+	struct dentry *dentry;
>+	unsigned long seq;
>+
>+        do {
>+                seq = read_seqbegin(&rename_lock);
>+                dentry = __d_lookup_single(parent, name);
>+                if (dentry)
>+			break;
>+	} while (read_seqretry(&rename_lock, seq));
>+	return dentry;
>+}

Replace with tabs.

>+lookup_union:
>+	do {
>+		struct vfsmount *mnt = find_mnt(topmost);
>+		UM_DEBUG_DCACHE("name=\"%s\", inode=%p, device=%s\n",
>+				topmost->d_name.name, topmost->d_inode,
>+				mnt->mnt_devname);
>+		mntput(mnt);
>+	} while (0);

Why the extra do{}while? [elsewhere too]

>+	if (topmost->d_union) {
>+		union_lock_spinlock(topmost, &topmost->d_lock);
>+	}

Extra {} could go [elsewhere too].

>+		if (last->d_overlaid
>+		    && (last->d_overlaid != dentry)) {

As can these extra () [elsewhere too].

>+static inline struct dentry * __lookup_hash_single(struct qstr *name, struct dentry *base, struct nameidata *nd)
>+{
>+	struct dentry *dentry;
>+	struct inode *inode;
>+	int err;
>+
>+	inode = base->d_inode;
>+
>+	err = permission(inode, MAY_EXEC, nd);
>+	dentry = ERR_PTR(err);
>+	if (err)
>+		goto out;
>+
>+	dentry = __lookup_hash_kern_single(name, base, nd);
>+out:
>+	return dentry;
>+}

This looks a little big for being inline.



	Jan
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