linux-kernel - Re: [PATCH] xfs: use smaller int param in call to xfs_flush

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Date:	Mon, 21 Apr 2008 22:18:24 -0500
From:	Eric Sandeen <sandeen@...deen.net>
To:	Denys Vlasenko <vda.linux@...glemail.com>
CC:	David Chinner <dgc@....com>, Adrian Bunk <bunk@...nel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Shawn Bohrer <shawn.bohrer@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] xfs: use smaller int param in call to xfs_flush_pages

Denys Vlasenko wrote:
> Hi David,
> 
> xfs_flush_pages() flags parameter is declared as uint64_t, but
> code never pass values which do not fit into 32 bits.
> All callsites sans one pass zero, and the last one passes
> XFS_B_DELWRI, XFS_B_ASYNC or zero.
> These values are defined in enum xfs_buf_flags_t and they
> all fit in 32 bits.
> 
> This patch changes type of the parameter and one variable
> which used to pass it to unsigned int.


FWIW this one also seems to make no stack difference, at least on x86_64.

Not complaining; just checking it out. :)

If you can shink xfs_bmapi, let me know.  :)

Thanks,
-Eric
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