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    SubjectRe: [patch] remove redundant iov segment check
    On Mon, 4 Dec 2006 08:26:36 -0800
    "Chen, Kenneth W" <> wrote:

    > So it's not possible to call down to generic_file_aio_read/write with invalid
    > iov segment. Patch proposed to delete these redundant code.

    erp, please don't touch that code.

    The writev deadlock fixes which went into 2.6.17 trashed writev()
    performance and Nick and I are slowly trying to get it back, while fixing
    the has-been-there-forever pagefault-in-write() deadlock.

    This is all proving very hard to do, and we don't need sweeping code
    cleanups happening under our feet ;)

    I'll bring those patches back in next -mm, but not very confidently.
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