Date: Sun, 29 Aug 2010 20:18:06 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/cddl/contrib/opensolaris/lib/pyzfs/common ioctl.c Message-ID: <201008292018.o7TKIPXV033740@repoman.freebsd.org>
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pjd 2010-08-29 20:18:06 UTC FreeBSD src repository Modified files: cddl/contrib/opensolaris/lib/pyzfs/common ioctl.c Log: SVN rev 211970 on 2010-08-29 20:18:06Z by pjd Fix 'zfs allow' (maybe not only) returning: cannot access dataset system/usr/home: Operation not supported by including libzfs_impl.h. What libzfs_impl.h does is to redefine ioctl() to be compatible with OpenSolaris. More specifically OpenSolaris returns ENOMEM when buffer is too small and sets field zc_nvlist_dst_size to the size that will be big enough for the data. In FreeBSD case ioctl() doesn't copy data structure back in case of a failure. We work-around it in kernel and libzfs by returning 0 from ioctl() and always checking if zc_nvlist_dst_size hasn't changed. For this work-around to work in pyzfs we need this compatible ioctl() which is implemented in libzfs_impl.h. MFC after: 2 weeks Revision Changes Path 1.2 +1 -0 src/cddl/contrib/opensolaris/lib/pyzfs/common/ioctl.c
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