Messages in this thread | | | Date | Sun, 2 Jan 2005 08:36:15 -0800 | From | William Lee Irwin III <> | Subject | Re: [PATCH][1/2] adjust dirty threshold for lowmem-only mappings |
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On Sat, Dec 25, 2004 at 07:07:21PM -0800, William Lee Irwin III wrote: >> The problem as posed is that the dirty memory limits are global, but
On Sun, Jan 02, 2005 at 05:10:08PM +0100, Andrea Arcangeli wrote: > What do you mean with global? Global is one thing, but taking highmem > into account for calculating the limit is another thing. The > nr_free_buffer_pages exists exactly to avoid taking highmem into account > for the dirty memory limits. 2.6 must also ignore highmem in the dirty > memory limits like 2.4 does. I'd be surprised if somebody broke this in > 2.6. As far as I can tell, while writing to a blkdev it cannot make any > difference if you've 4G or 1G of ram because of that (I mean on x86 of > course).
It's not used for any of these purposes in 2.6.x.
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