linux-kernel - Re: [PATCH 2/2] zram: introduce automatic device

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Date:	Wed, 4 Mar 2015 14:13:05 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:	Minchan Kim <minchan@...nel.org>, Nitin Gupta <ngupta@...are.org>,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCH 2/2] zram: introduce automatic device_id generation

On Wed,  4 Mar 2015 23:16:41 +0900 Sergey Senozhatsky <sergey.senozhatsky@...il.com> wrote:

> +static ssize_t zram_add_show(struct class *class,
> +			struct class_attribute *attr,
> +			char *buf)
> +{
> +	int ret;
> +
> +	mutex_lock(&zram_index_mutex);
> +	/* read operation on zram_add is - pick up device_id
> +	 * automatically, add corresponding device and return
> +	 * that device_id back to user */
> +	ret = zram_add(-1);
> +	mutex_unlock(&zram_index_mutex);
> +
> +	if (ret < 0)
> +		return ret;
> +	return scnprintf(buf, PAGE_SIZE, "%d\n", ret);
> +}

Please don't invent new commenting styles.  Because doing so inevitably
creates a mixed-up mess, which is what we now have.

--- a/drivers/block/zram/zram_drv.c~zram-introduce-automatic-device_id-generation-fix
+++ a/drivers/block/zram/zram_drv.c
@@ -1281,9 +1281,10 @@ static ssize_t zram_add_show(struct clas
 	int ret;
 
 	mutex_lock(&zram_index_mutex);
-	/* read operation on zram_add is - pick up device_id
-	 * automatically, add corresponding device and return
-	 * that device_id back to user */
+	/*
+	 * read operation on zram_add is - pick up device_id automatically, add
+	 * corresponding device and return that device_id back to user
+	 */
 	ret = zram_add(-1);
 	mutex_unlock(&zram_index_mutex);
 
_


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