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Date: Mon, 02 Jun 2014 16:33:33 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: "Theodore Ts'o" <tytso@....edu>, Chuck Lever <chuck.lever@...cle.com>, Arnd Bergmann <arnd@...db.de>, Nicolas Pitre <nicolas.pitre@...aro.org>, Dave Chinner <david@...morbit.com>, LKML Kernel <linux-kernel@...r.kernel.org>, linux-arch@...r.kernel.org, joseph@...esourcery.com, john.stultz@...aro.org, Christoph Hellwig <hch@...radead.org>, tglx@...utronix.de, geert@...ux-m68k.org, lftan@...era.com, linux-fsdevel <linux-fsdevel@...r.kernel.org>, xfs@....sgi.com, Linux NFS Mailing List <linux-nfs@...r.kernel.org> Subject: Re: [RFC 11/32] xfs: convert to struct inode_time On 06/02/2014 04:32 PM, Theodore Ts'o wrote: > On Mon, Jun 02, 2014 at 03:32:35PM -0700, H. Peter Anvin wrote: >> On 06/02/2014 03:29 PM, Theodore Ts'o wrote: >>> >>> And since we are already returning (time_t) -1 in some cases, we might >>> as well try to make things a bit more formal. >>> >> >> Are we? I am not aware of *Linux* actually using that. > > Linux's time(2) can return (time_t) -1 and set errno to EFAULT, per > the Posix specification: > > SYSCALL_DEFINE1(time, time_t __user *, tloc) > { > time_t i = get_seconds(); > > if (tloc) { > if (put_user(i,tloc)) > return -EFAULT; > } > force_successful_syscall_return(); > return i; > } > OK, I guess I should have said... other than for -EFAULT. I just don't know of anyone using time(2) with an argument other than NULL. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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