From: Nathan Scott <nscott@aconex.com>
To: David Chinner <dgc@sgi.com>
Cc: xfs-dev <xfs-dev@sgi.com>, xfs-oss <xfs@oss.sgi.com>
Subject: Re: [patch] rudimetary fallocate support for xfs_io
Date: Thu, 22 May 2008 16:39:01 +1000 [thread overview]
Message-ID: <1211438341.25294.506.camel@edge.scott.net.au> (raw)
In-Reply-To: <20080522061029.GO173056135@sgi.com>
On Thu, 2008-05-22 at 16:10 +1000, David Chinner wrote:
>
> +#if defined(__i386__)
> +#define __NR_fallocate 324
> +#elif defined(__x86_64__)
> +#define __NR_fallocate 285
> +#elif defined(__ia64__)
> +#define __NR_fallocate 1303
> +#endif
> +
> +static int
> +fallocate(int fd, int cmd, off64_t start, off64_t len)
> +{
> + return syscall(__NR_fallocate, fd, cmd, start, len);
> +}
This will cause xfsprogs build breakage on any architecture
other than the above three; check out the approach taken in
xfs-cmds/attr/libattr/syscalls.c to avoid this (give ENOSYS
for the unknown archs).
cheers.
--
Nathan
prev parent reply other threads:[~2008-05-22 6:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-22 6:10 [patch] rudimetary fallocate support for xfs_io David Chinner
2008-05-22 6:39 ` Nathan Scott [this message]
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