linux-kernel - Re: [PATCH 1/7][TAKE5] fallocate() implementation on i386, x86

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Message-ID: <20070626193855.GA13727@osiris.ibm.com>
Date:	Tue, 26 Jun 2007 21:38:55 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, David Chinner <dgc@....com>,
	Andreas Dilger <adilger@...sterfs.com>, suparna@...ibm.com,
	cmm@...ibm.com, xfs@....sgi.com
Subject: Re: [PATCH 1/7][TAKE5] fallocate() implementation on i386, x86_64 and powerpc

> Index: linux-2.6.22-rc4/arch/powerpc/kernel/sys_ppc32.c
> ===================================================================
> --- linux-2.6.22-rc4.orig/arch/powerpc/kernel/sys_ppc32.c
> +++ linux-2.6.22-rc4/arch/powerpc/kernel/sys_ppc32.c
> @@ -773,6 +773,13 @@ asmlinkage int compat_sys_truncate64(con
>  	return sys_truncate(path, (high << 32) | low);
>  }
> 
> +asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
> +				     u32 lenhi, u32 lenlo)
> +{
> +	return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
> +			     ((loff_t)lenhi << 32) | lenlo);
> +}
> +
>  asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
>  				 unsigned long low)
>  {
> Index: linux-2.6.22-rc4/arch/x86_64/ia32/ia32entry.S
> ===================================================================
> --- linux-2.6.22-rc4.orig/arch/x86_64/ia32/ia32entry.S
> +++ linux-2.6.22-rc4/arch/x86_64/ia32/ia32entry.S
> @@ -719,4 +719,5 @@ ia32_sys_call_table:
>  	.quad compat_sys_signalfd
>  	.quad compat_sys_timerfd
>  	.quad sys_eventfd
> +	.quad sys_fallocate
>  ia32_syscall_end:

Btw. this is also (still?) broken. x86_64 needs a compat syscall here.
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