linux-kernel - Re: [PATCH 2/2] hfsplus: add printk to log allocation failure in hfs_find

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Date:	Sun, 07 Apr 2013 15:00:19 -0700
From:	Joe Perches <joe@...ches.com>
To:	Alexey Khoroshilov <khoroshilov@...ras.ru>
Cc:	Vyacheslav Dubeyko <slava@...eyko.com>,
	Hin-Tak Leung <htl10@...rs.sourceforge.net>,
	Al Viro <viro@...iv.linux.org.uk>,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	Christoph Hellwig <hch@....de>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org
Subject: Re: [PATCH 2/2] hfsplus: add printk to log allocation failure in
 hfs_find_init()

On Mon, 2013-04-08 at 01:21 +0400, Alexey Khoroshilov wrote:
> Add printk to log allocation failure in hfs_find_init(),
> "so that there is a sign in dmesg when the error condition is triggered".
> (per Hin-Tak Leung request)

Not needed.  There already is a generic dump_stack
on all allocation failures without __GFP_NOWARN.

> diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
[]
> @@ -18,8 +18,10 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)

> +	if (!ptr) {
> +		printk(KERN_ERR "hfs: allocation failed in hfs_find_init()\n");
>  		return -ENOMEM;


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