Re: [PATCH 01/10] autofs4 - use macros for active list handling

From: Andrew Morton
Date: Tue Oct 06 2009 - 16:53:55 EST


On Thu, 01 Oct 2009 09:00:55 +0800
Ian Kent <raven@xxxxxxxxxx> wrote:

> Define some simple macro functions for adding and deleting entries
> on the active (and unhashed) dentry list.

A "macro" is that thing which we create with #define.

> +static void autofs4_add_active(struct dentry *dentry)
> +{
> + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
> + struct autofs_info *ino = autofs4_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);
> + }
> + return;
> +}
> +
> +static void autofs4_del_active(struct dentry *dentry)
> +{
> + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
> + struct autofs_info *ino = autofs4_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);
> + }
> + return;
> +}

These aren't macros! I changed the titles and changelogs of patches 1,
2 and 3 to use the term "helper functions".

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