linux-kernel - RE: EXTRA_VERSION in #if LINUX_VERSION_CODE >= KERNEL

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Date:	Sat, 24 Jan 2009 17:17:09 +0100
From:	Peter Hallberg <hallberg68@...mail.com>
To:	<arjan@...radead.org>
CC:	<linux-kernel@...r.kernel.org>
Subject: RE: EXTRA_VERSION in #if LINUX_VERSION_CODE >= KERNEL_VERSION(x,x,x)


>> How does one write stuff like
>> #if LINUX_VERSION_CODE>= KERNEL_VERSION(2,6,28)
>> if the 4 digit EXTRA_VERSION also is needed?u
>
> if you need that something is wrong....
>
> can you be more elaborate in what you're trying to achieve ?

Between 2.6.28 and 2.6.28.1 you changed the function grab_cache_page to grab_cache_page_write_begin and added a flags argument. Since I maintain an separate filesystem module I need to take care of this.
>From the change log:
commit 4f093b80fa8facbd22fa36c00242e2fffa36e12f
Author: Nick Piggin 
Date:   Sun Jan 4 12:00:53 2009 -0800

    fs: symlink write_begin allocation context fix
    
    commit 54566b2c1594c2326a645a3551f9d989f7ba3c5e upstream.
Change grab_cache_page to
    accept a nofs argument as well, to honour that flag (while we're there,
    change the name to grab_cache_page_write_begin which is more instructive
    and does away with random leading underscores).


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