Date: Fri, 22 Apr 2016 13:00:27 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r298472 - in head: cddl/contrib/opensolaris/lib/libzfs/common cddl/contrib/opensolaris/lib/libzfs_core/common sys/cddl/contrib/opensolaris/uts/common/sys/fs Message-ID: <201604221300.u3MD0RnC027441@repo.freebsd.org>
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Author: avg Date: Fri Apr 22 13:00:27 2016 New Revision: 298472 URL: https://svnweb.freebsd.org/changeset/base/298472 Log: MFV r298471: 6052 decouple lzc_create() from the implementation details illumos/illumos-gate@26455f9efcf9b1e44937d4d86d1ce37b006f25a9 https://github.com/illumos/illumos-gate/commit/26455f9efcf9b1e44937d4d86d1ce37b006f25a9 https://www.illumos.org/issues/6052 At the moment type parameter of lzc_create() is of dmu_objset_type_t type. That exposes an implementation detail and requires sys/fs/zfs.h to be included in libzfs_core.h creating unnecessary coupling between libzfs_core interface and ZFS internals. I think that dmu_objset_type_t should be replaced with a libzfs_core enumeration of supported dataset types. For ABI reasons the new enumeration could be bit-compatible with dmu_objset_type_t. For example: typedef enum { LZC_DST_ZFS = 2, LZC_DST_ZVOL } lzc_dataset_type_t; Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net> Author: Andriy Gapon <andriy.gapon@clusterhq.com> MFC after: 2 weeks Sponsored by: ClusterHQ Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h Directory Properties: head/cddl/contrib/opensolaris/ (props changed) head/cddl/contrib/opensolaris/lib/libzfs/ (props changed) head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Fri Apr 22 12:51:55 2016 (r298471) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Fri Apr 22 13:00:27 2016 (r298472) @@ -3226,7 +3226,7 @@ zfs_create(libzfs_handle_t *hdl, const c uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); char errbuf[1024]; uint64_t zoned; - dmu_objset_type_t ost; + enum lzc_dataset_type ost; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); @@ -3253,9 +3253,9 @@ zfs_create(libzfs_handle_t *hdl, const c } if (type == ZFS_TYPE_VOLUME) - ost = DMU_OST_ZVOL; + ost = LZC_DATSET_TYPE_ZVOL; else - ost = DMU_OST_ZFS; + ost = LZC_DATSET_TYPE_ZFS; /* open zpool handle for prop validation */ char pool_path[MAXNAMELEN]; Modified: head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Fri Apr 22 12:51:55 2016 (r298471) +++ head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Fri Apr 22 13:00:27 2016 (r298472) @@ -218,11 +218,11 @@ out: } int -lzc_create(const char *fsname, dmu_objset_type_t type, nvlist_t *props) +lzc_create(const char *fsname, enum lzc_dataset_type type, nvlist_t *props) { int error; nvlist_t *args = fnvlist_alloc(); - fnvlist_add_int32(args, "type", type); + fnvlist_add_int32(args, "type", (dmu_objset_type_t)type); if (props != NULL) fnvlist_add_nvlist(args, "props", props); error = lzc_ioctl(ZFS_IOC_CREATE, fsname, args, NULL); Modified: head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Fri Apr 22 12:51:55 2016 (r298471) +++ head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Fri Apr 22 13:00:27 2016 (r298472) @@ -30,7 +30,6 @@ #include <libnvpair.h> #include <sys/param.h> #include <sys/types.h> -#include <sys/fs/zfs.h> #ifdef __cplusplus extern "C" { @@ -39,8 +38,16 @@ extern "C" { int libzfs_core_init(void); void libzfs_core_fini(void); +/* + * NB: this type should be kept binary compatible with dmu_objset_type_t. + */ +enum lzc_dataset_type { + LZC_DATSET_TYPE_ZFS = 2, + LZC_DATSET_TYPE_ZVOL +}; + int lzc_snapshot(nvlist_t *, nvlist_t *, nvlist_t **); -int lzc_create(const char *, dmu_objset_type_t, nvlist_t *); +int lzc_create(const char *, enum lzc_dataset_type, nvlist_t *); int lzc_clone(const char *, const char *, nvlist_t *); int lzc_destroy_snaps(nvlist_t *, boolean_t, nvlist_t **); int lzc_bookmark(nvlist_t *, nvlist_t **); Modified: head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h Fri Apr 22 12:51:55 2016 (r298471) +++ head/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h Fri Apr 22 13:00:27 2016 (r298472) @@ -57,6 +57,10 @@ typedef enum { ZFS_TYPE_BOOKMARK = (1 << 4) } zfs_type_t; +/* + * NB: lzc_dataset_type should be updated whenever a new objset type is added, + * if it represents a real type of a dataset that can be created from userland. + */ typedef enum dmu_objset_type { DMU_OST_NONE, DMU_OST_META,
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