Messages in this thread |  | | Date | Thu, 3 Jan 2002 11:17:56 -0500 (EST) | | From | Alexander Viro <> | | Subject | Re: [PATCH] expanding truncate |
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On Thu, 3 Jan 2002, Oleg Drokin wrote:
> Purpose of this patch is of course not to fill in the datablocks with zeroes. > The purpose (as applied to reiserfs) is to fill indirect data pointers (that is - pointers to real data blocks) > with zeroes (and to organize proper in-tree data structure for such pointers). > As of now such organization and zero-filling is done on a lazy manner at disk-flushing time. > Unfortunatelly this leads to races in the code. > I do not know why parts of this code can be needed by other filesystem and why Al Viro put it in generic VFS > code. (but he can comment on it, I think)
I could, if I would remember doing that... ;-/
Seriously, it looks like a half-arsed and very old attempt to do common expanding truncate() for no-holes filesystems. BTW, these days rlimit checks are done by vmtruncate().
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