From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH-RFC-RESEND 2/9] vfs/btrfs: add .clone_range file operation
Date: Wed, 26 Aug 2015 06:17:41 -0700
Message-ID: <20150826131741.GA22249@infradead.org>
References: <1440577010-122867-1-git-send-email-tao.peng@primarydata.com>
 <1440577010-122867-3-git-send-email-tao.peng@primarydata.com>
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Cc: linux-fsdevel@vger.kernel.org,
	Trond Myklebust <trond.myklebust@primarydata.com>,
	Anna Schumaker <anna.schumaker@netapp.com>,
	Zach Brown <zab@zabbo.net>,
	Darren Hart <dvhart@linux.intel.com>, bfields@fieldses.org,
	Jeff Layton <jeff.layton@primarydata.com>,
	linux-nfs@vger.kernel.org,
	"Darrick J. Wong" <darrick.wong@oracle.com>,
	linux-btrfs@vger.kernel.org
To: Peng Tao <tao.peng@primarydata.com>
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You need to eep the existing defintion, either as a duplicate with a
comment, or by including the uapi fs.h and defininin it to the new name.

Also this will break cifs, which uses the BTRFS_IOC_CLONE defintion
already.