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    SubjectRe: [PATCHSET block:for-3.2/core] rescue cfq from RCU death sprial :)
    On Wed, Oct 26, 2011 at 02:36:29PM -0700, Tejun Heo wrote:
    > Hello, again.
    >
    > On Tue, Oct 25, 2011 at 06:48:26PM -0700, Tejun Heo wrote:
    > > This patchset contains the following 13 patches.
    > >
    > > 0001-ida-make-ida_simple_get-put-IRQ-safe.patch
    > > 0002-block-cfq-move-cfqd-cic_index-to-q-id.patch
    > > 0003-block-misc-ioc-cleanups.patch
    > > 0004-block-make-ioc-get-put-interface-more-conventional-a.patch
    > > 0005-block-misc-updates-to-blk_get_queue.patch
    > > 0006-block-cfq-misc-updates-to-cfq_io_context.patch
    > > 0007-block-cfq-move-ioc-ioprio-cgroup-changed-handling-to.patch
    > > 0008-block-cfq-fix-race-condition-in-cic-creation-path-an.patch
    > > 0009-block-cfq-fix-cic-lookup-locking.patch
    > > 0010-block-cfq-unlink-cfq_io_context-s-immediately.patch
    > > 0011-block-cfq-remove-delayed-unlink.patch
    > > 0012-block-cfq-kill-ioc_gone.patch
    > > 0013-block-cfq-kill-cic-key.patch
    >
    > 0001 removed (realized it's not necessary anymore) and sent out
    > separately. 0004 and 0010 updated to address issues Vivek pointed
    > out. Both don't affect other patches.
    >
    > git branch is updated to reflect the changes including dropping of ide
    > related changes from the previous patchset. You won't be able to pull
    > this directly as I couldn't use commits for the previous patchset from
    > the block tree (they're not there yet).
    >
    > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git block-cfq-sync
    >
    > When you want the whole series reposted, let me know.

    These changes look good to me. It simplifies the locking (yes despite
    double lock dance :-)) and gets rid of some race conditions.

    Acked-by: Vivek Goyal <vgoyal@redhat.com>

    Thanks
    Vivek


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