linux-kernel - Re: [PATCH v7 1/7] livepatch: Use lists to manage patches, objects and functions

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Date:   Fri, 9 Feb 2018 11:06:19 +0100 (CET)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Petr Mladek <pmladek@...e.com>
cc:     Jiri Kosina <jikos@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jason Baron <jbaron@...mai.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Jessica Yu <jeyu@...nel.org>,
        Evgenii Shatokhin <eshatokhin@...tuozzo.com>,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 1/7] livepatch: Use lists to manage patches, objects
 and functions

On Tue, 6 Feb 2018, Petr Mladek wrote:

> From: Jason Baron <jbaron@...mai.com>
> 
> Currently klp_patch contains a pointer to a statically allocated array of
> struct klp_object and struct klp_objects contains a pointer to a statically
> allocated array of klp_func. In order to allow for the dynamic allocation
> of objects and functions, link klp_patch, klp_object, and klp_func together
> via linked lists. This allows us to more easily allocate new objects and
> functions, while having the iterator be a simple linked list walk.
> 
> The static structures are added to the lists early. It allows to add
> the dynamically allocated objects before klp_init_object() and
> klp_init_func() calls. Therefore it reduces the further changes
> to the code.
> 
> Also klp_init_*_list() functions are split because they will
> be used when adding the dynamically allocated structures.
> 
> This patch does not change the existing behavior.
> 
> Signed-off-by: Jason Baron <jbaron@...mai.com>
> [pmladek@...e.com: Initialize lists before init calls]
> Signed-off-by: Petr Mladek <pmladek@...e.com>
> Cc: Josh Poimboeuf <jpoimboe@...hat.com>
> Cc: Jessica Yu <jeyu@...nel.org>
> Cc: Jiri Kosina <jikos@...nel.org>
> Cc: Miroslav Benes <mbenes@...e.cz>

Acked-by: Miroslav Benes <mbenes@...e.cz>

Miroslav