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    SubjectRe: [PATCH 04/12] writeback: switch to per-bdi threads for flushing data
    On Tue, May 26, 2009 at 10:56:48AM +0200, Jens Axboe wrote:
    > > Hmm, so each BDI flusher thread is going to sync all the superblocks?
    > > Isn't there a better way? I suppose we *should* be able to somehow go
    > > from a BDI to a superblock (or maybe a list of those) so that we can write
    > > per-fs metadata not bound to inodes.
    > I just moved the sync_supers() to the bdi_forker_task(). That makes it
    > global at the same interval of wakeups, instead of doing in the bdi
    > threads. It would be nice to sync locally instead, but that's something
    > that can wait for later (if ever).

    For now it might be easier to just have a separate thread for calling
    sync_supers instead of interwinding it with the data writeback.

    Btw, XFS currently has a per-device thread for that, to avoid any global

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      Last update: 2009-05-26 11:01    [W:0.019 / U:322.144 seconds]
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