linux-kernel - Re: [RFC] Heads up on sys

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Message-ID: <45E7BE4B.5070602@us.ibm.com>
Date:	Thu, 01 Mar 2007 22:03:55 -0800
From:	Badari Pulavarty <pbadari@...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,
	Andrew Morton <akpm@...ux-foundation.org>, suparna@...ibm.com,
	cmm@...ibm.com, alex@...sterfs.com, suzuki@...ibm.com
Subject: Re: [RFC] Heads up on sys_fallocate()


Amit K. Arora wrote:

>This is to give a heads up on few patches that we will be soon coming up
>with. These patches implement a new system call sys_fallocate() and a
>new inode operation "fallocate", for persistent preallocation. The new
>system call, as Andrew suggested, will look like:
>
>  asmlinkage long sys_fallocate(int fd, loff_t offset, loff_t len);
>
I am wondering about return values from this syscall ? Is it supposed to 
return the
number of bytes allocated ? What about partial allocations ? What about 
if the
blocks already exists ? What would be return values in those cases ?

Just curious .. What does posix_fallocate() return ?

Thanks,
Badari

>



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