aoe: add AoE-target files to debugfs (e8866cf2) · Commits · 戴 / test

drivers/block/aoe/aoe.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -169,6 +169,7 @@ struct aoedev {
		ulong ref;
		struct work_struct work;/* disk create work struct */
		struct gendisk *gd;
		struct dentry *debugfs;
		struct request_queue *blkq;
		struct hd_geometry geo;
		sector_t ssize;
		@@ -206,6 +207,7 @@ struct ktstate {
		int aoeblk_init(void);
		void aoeblk_exit(void);
		void aoeblk_gdalloc(void *);
		void aoedisk_rm_debugfs(struct aoedev *d);
		void aoedisk_rm_sysfs(struct aoedev *d);

		int aoechr_init(void);

+35 −0

Original line number	Diff line number	Diff line
		@@ -132,6 +132,40 @@ static const struct attribute_group attr_group = {
		.attrs = aoe_attrs,
		};

		static const struct file_operations aoe_debugfs_fops;

		static void
		aoedisk_add_debugfs(struct aoedev *d)
		{
		struct dentry *entry;
		char *p;

		if (aoe_debugfs_dir == NULL)
		return;
		p = strchr(d->gd->disk_name, '/');
		if (p == NULL)
		p = d->gd->disk_name;
		else
		p++;
		BUG_ON(*p == '\0');
		entry = debugfs_create_file(p, 0444, aoe_debugfs_dir, d,
		&aoe_debugfs_fops);
		if (IS_ERR_OR_NULL(entry)) {
		pr_info("aoe: cannot create debugfs file for %s\n",
		d->gd->disk_name);
		return;
		}
		BUG_ON(d->debugfs);
		d->debugfs = entry;
		}
		void
		aoedisk_rm_debugfs(struct aoedev *d)
		{
		BUG_ON(d->debugfs == NULL);
		debugfs_remove(d->debugfs);
		d->debugfs = NULL;
		}

		static int
		aoedisk_add_sysfs(struct aoedev *d)
		{
		@@ -332,6 +366,7 @@ aoeblk_gdalloc(void *vp)

		add_disk(gd);
		aoedisk_add_sysfs(d);
		aoedisk_add_debugfs(d);

		spin_lock_irqsave(&d->lock, flags);
		WARN_ON(!(d->flags & DEVFL_GD_NOW));

+1 −0