tree 0caae9380c729a437e89acd5d5817a285156e26e
parent b73b459f72f746a031d1ef4cc7659b20a1f1acb9
author Benjamin LaHaise <bcrl@kvack.org> 1143111668 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1143128298 -0800

[PATCH] reduce size of bio mempools

The biovec default mempool limit of 256 entries results in over 3MB of RAM
being permanently pinned, even on systems with only 128MB of RAM.  Since
mempool tries to allocate from the system pool first, it makes sense to
reduce the size of the mempool fallbacks to a more reasonable limit of 1-5
entries -- enough for the system to be able to make progress even under
load.

Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Acked-by: Jens Axboe <axboe@suse.de>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>