Re: Tailmerging - dragons sighted

[Alexander Viro]

On Tue, 12 Sep 2000, Chris Mason wrote:

> Almost, truncate could remove the file items in the middle of the unmerge.
> 
> proc1: writepage->prepare_write->unmerge

Chris, RTFPOSIX. pageout should _never_ expand the file. _If_ you are
using ->prepare_write() in ->writepage() at all (you don't have to) it
should go only up to ->i_size, or you've got much more serious problems.

IOW, ->writepage() has no business unmerging anything.

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