Messages in this thread | | | Date | Thu, 16 Sep 2004 00:08:19 +0200 | From | Andrea Arcangeli <> | Subject | Re: truncate shows non zero data beyond the end of the inode with MAP_SHARED |
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On Wed, Sep 15, 2004 at 03:00:16PM -0700, William Lee Irwin III wrote: > William Lee Irwin III <wli@holomorphy.com> wrote: > >> Zeroing the final partial page during expanding truncate (flushing TLB) > >> sounds like a reasonable half measure; we don't do anything at the moment. > > On Wed, Sep 15, 2004 at 02:55:24PM -0700, Andrew Morton wrote: > > Sure about that? block_truncate_page() gets called. > > So it does; then the hard parts are what's biting aa.
block_truncate_page is unrelated with this issue, it's called on the _new_ partial page generated by truncate, not on the _old_ partial page that is being extended to be a _full_ page (with garbage inside between the old_i_size and PAGE_ALIGN(old_i_size)).
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