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pnfsblock: limit bio page count
authorPeng Tao <bergwolf@gmail.com>
Thu, 12 Jan 2012 15:18:48 +0000 (23:18 +0800)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Thu, 12 Jan 2012 21:39:05 +0000 (16:39 -0500)
One bio can have at most BIO_MAX_PAGES pages. We should limit it bec otherwise
bio_alloc will fail when there are many pages in one read/write_pagelist.

Cc: <stable@vger.kernel.org> #3.1+
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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