From: Milan Broz <mbroz@redhat.com>
Date: Mon, 4 Sep 2006 13:37:57 +0000 (+0200)
Subject: [PATCH] fix creating zero sized bio mempools in low memory system
X-Git-Tag: v2.6.19-rc1~640^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50be345560f1ffdcb15cc0e146416b80529a2ef2;p=pandora-kernel.git

[PATCH] fix creating zero sized bio mempools in low memory system

In the very low memory systems is in the init_bio call
scale parameter set to zero and it leads to creating
zero sized mempool.

This patch prevents pool_entries parameter become zero,
so the created pool have at least 1 entry.

Mempool with 0 entries lead to incorrect behaviour
of mempool_free. (Alloc requests are not waken up
and system stalls in mempool_alloc->ioschedule).

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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