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Message-ID: <1322066106.14799.84.camel@twins>
Subject: Re: [PATCH v7 3.2-rc2 3/30] uprobes: register/unregister probes.
From: Peter Zijlstra <peterz@infradead.org>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Oleg Nesterov <oleg@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
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        Steven Rostedt <rostedt@goodmis.org>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        Anton Arapov <anton@redhat.com>,
        Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
        Jim Keniston <jkenisto@linux.vnet.ibm.com>,
        Stephen Wilson <wilsons@start.ca>
Date: Wed, 23 Nov 2011 17:35:06 +0100
In-Reply-To: <20111118110713.10512.9461.sendpatchset@srdronam.in.ibm.com>
References: <20111118110631.10512.73274.sendpatchset@srdronam.in.ibm.com>
	 <20111118110713.10512.9461.sendpatchset@srdronam.in.ibm.com>
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On Fri, 2011-11-18 at 16:37 +0530, Srikar Dronamraju wrote:
> +#define UPROBES_HASH_SZ        13
> +/* serialize (un)register */
> +static struct mutex uprobes_mutex[UPROBES_HASH_SZ];
> +#define uprobes_hash(v)        (&uprobes_mutex[((unsigned long)(v)) %\
> +                                               UPROBES_HASH_SZ]) 

Was there any reason to for using this hasing scheme, say over hash.h?