Re: [PATCH 02/12] raid5-cache: free I/O units earlier

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To: Christoph Hellwig <hch@xxxxxx>, Shaohua Li <shli@xxxxxx>
Subject: Re: [PATCH 02/12] raid5-cache: free I/O units earlier
From: Neil Brown <neilb@xxxxxxx>
Date: Tue, 15 Sep 2015 10:07:12 +0200
Cc: linux-raid@xxxxxxxxxxxxxxx, Kernel-team@xxxxxx, dan.j.williams@xxxxxxxxx
In-reply-to: <1442038638-6947-3-git-send-email-hch@lst.de>
User-agent: Notmuch/0.20.2 (http://notmuchmail.org) Emacs/24.5.1 (x86_64-pc-linux-gnu)

Christoph Hellwig <hch@xxxxxx> writes:

> +	sector_t reclaimable;

sector_t is unsigned (u64 or "unsigned long"), so

> +	BUG_ON(reclaimable < 0);

This could only be a compiler bug.

NeilBrown

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Follow-Ups:
- Re: [PATCH 02/12] raid5-cache: free I/O units earlier
  - From: Christoph Hellwig

References:
- raid5-cache I/O path improvements V2
  - From: Christoph Hellwig
- [PATCH 02/12] raid5-cache: free I/O units earlier
  - From: Christoph Hellwig

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