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Date: Fri, 24 Sep 2010 15:07:38 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Alan Cox <alan@...rguk.ukuu.org.uk> Cc: Richard Cochran <richardcochran@...il.com>, linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org, linux-api@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, Christoph Lameter <cl@...ux.com>, David Miller <davem@...emloft.net>, John Stultz <johnstul@...ibm.com>, Krzysztof Halasa <khc@...waw.pl>, Peter Zijlstra <peterz@...radead.org>, Rodolfo Giometti <giometti@...ux.it>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [PATCH v6 0/8] ptp: IEEE 1588 hardware clock support > You can't do that avoiding as you might like because the behaviour of > file handle numbering is defined by the standards. Hence the "f*" > versions of the calls (and of lots of other stuff) > > Whether you add new syscalls or do the fd passing using flags and hide > the ugly bits in glibc is another question. To add an example of what I mean you might end up defining "CLOCK_FD" to indicate to use the fd in the struct, but given syscalls are trivial codewise and would end up as fclock_foo(int fd, blah) { clock = fd_to_clock(fd); if (error) return error clock_do_foo(clock, blah); clock_put(clock); } and clock_foo(int posixid, blah) { clock = posix_to_clock(posixid) ... rest same } as wrappers it seems hardly worth adding ugly hacks -- 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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