From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCH] vfs: fix vmplice_to_user()
Date: Tue, 27 May 2014 18:51:57 +0100
Message-ID: <20140527175157.GU18016@ZenIV.linux.org.uk>
References: <20140527144116.GK17233@tucsk.piliscsaba.szeredi.hu>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
To: Miklos Szeredi <miklos@szeredi.hu>
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On Tue, May 27, 2014 at 04:41:16PM +0200, Miklos Szeredi wrote:
> From: Miklos Szeredi <mszeredi@suse.cz>
> 
> Commit 6130f5315ee8 "switch vmsplice_to_user() to copy_page_to_iter()" in
> v3.15-rc1 broke vmsplice(2).
> 
> This patch fixes two bugs:
> 
>  - count is not initialized to a proper value, which resulted in no data
>    being copied
> 
>  - if rw_copy_check_uvector() returns negative then the iov might be leaked.
> 
> Tested OK.

Applied, will push tonight.