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    SubjectRe: [Ext2-devel] Re: [RFC] ext2_new_block() behaviour


    On Wed, 3 Jan 2001, Oliver Xymoron wrote:

    > On Wed, 3 Jan 2001, Alexander Viro wrote:
    >
    > > On Wed, 3 Jan 2001, Stephen C. Tweedie wrote:
    > >
    > > > Having preallocated blocks allocated immediately is deliberate:
    > > > directories grow slowly and remain closed most of the time, so the
    > > > normal preallocation regime of only preallocating open files and
    > > > discarding preallocation on close just doesn't work.
    > >
    > > Erm. For directories we would not have the call of discard_prealloc()
    > > on close(2) - they have NULL ->release() anyway and for them it would
    > > happen only on ext2_put_inode(), i.e. upon the final dput(). Which would
    > > not happen while some descendent would stay in dcache.
    >
    > I bet it long predates dcache though..

    Not too likely. <checking CVS> It went in in 2.1.93. Apr 2 1998...
    Dcache was there ~50 versions before that.

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