Author: avg Date: Wed Dec 26 10:37:41 2018 New Revision: 342525 URL: https://svnweb.freebsd.org/changeset/base/342525
Log: MFV r342469: 9630 add lzc_rename and lzc_destroy to libzfs_core illumos/illumos-gate@049ba636fa37a2892809192fc671bff9158a01cd https://github.com/illumos/illumos-gate/commit/049ba636fa37a2892809192fc671bff9158a01cd https://www.illumos.org/issues/9630 Rename and destroy are very useful operations that deserve to be in libzfs_core. And they are not hard to implement too. MFC after: 2 weeks Relnotes: maybe Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.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/fs/zfs/zfs_ioctl.c 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 Wed Dec 26 10:37:06 2018 (r342524) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Wed Dec 26 10:37:41 2018 (r342525) @@ -3647,32 +3647,34 @@ zfs_create(libzfs_handle_t *hdl, const char *path, zfs int zfs_destroy(zfs_handle_t *zhp, boolean_t defer) { - zfs_cmd_t zc = { 0 }; + int error; + if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT && defer) + return (EINVAL); + if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { nvlist_t *nv = fnvlist_alloc(); fnvlist_add_boolean(nv, zhp->zfs_name); - int error = lzc_destroy_bookmarks(nv, NULL); + error = lzc_destroy_bookmarks(nv, NULL); fnvlist_free(nv); if (error != 0) { - return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, + return (zfs_standard_error_fmt(zhp->zfs_hdl, error, dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), zhp->zfs_name)); } return (0); } - (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); - - if (ZFS_IS_VOLUME(zhp)) { - zc.zc_objset_type = DMU_OST_ZVOL; + if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { + nvlist_t *nv = fnvlist_alloc(); + fnvlist_add_boolean(nv, zhp->zfs_name); + error = lzc_destroy_snaps(nv, defer, NULL); + fnvlist_free(nv); } else { - zc.zc_objset_type = DMU_OST_ZFS; + error = lzc_destroy(zhp->zfs_name); } - zc.zc_defer_destroy = defer; - if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && - errno != ENOENT) { + if (error != 0 && error != ENOENT) { return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), zhp->zfs_name)); Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c Wed Dec 26 10:37:06 2018 (r342524) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c Wed Dec 26 10:37:41 2018 (r342525) @@ -2140,7 +2140,6 @@ recv_rename(libzfs_handle_t *hdl, const char *name, co int baselen, char *newname, recvflags_t *flags) { static int seq; - zfs_cmd_t zc = { 0 }; int err; prop_changelist_t *clp; zfs_handle_t *zhp; @@ -2157,19 +2156,13 @@ recv_rename(libzfs_handle_t *hdl, const char *name, co if (err) return (err); - zc.zc_objset_type = DMU_OST_ZFS; - (void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name)); - if (tryname) { (void) strcpy(newname, tryname); - - (void) strlcpy(zc.zc_value, tryname, sizeof (zc.zc_value)); - if (flags->verbose) { (void) printf("attempting rename %s to %s\n", - zc.zc_name, zc.zc_value); + name, newname); } - err = ioctl(hdl->libzfs_fd, ZFS_IOC_RENAME, &zc); + err = lzc_rename(name, newname); if (err == 0) changelist_rename(clp, name, tryname); } else { @@ -2181,13 +2174,11 @@ recv_rename(libzfs_handle_t *hdl, const char *name, co (void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN, "%.*srecv-%u-%u", baselen, name, getpid(), seq); - (void) strlcpy(zc.zc_value, newname, sizeof (zc.zc_value)); - if (flags->verbose) { (void) printf("failed - trying rename %s to %s\n", - zc.zc_name, zc.zc_value); + name, newname); } - err = ioctl(hdl->libzfs_fd, ZFS_IOC_RENAME, &zc); + err = lzc_rename(name, newname); if (err == 0) changelist_rename(clp, name, newname); if (err && flags->verbose) { @@ -2212,7 +2203,6 @@ static int recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, char *newname, recvflags_t *flags) { - zfs_cmd_t zc = { 0 }; int err = 0; prop_changelist_t *clp; zfs_handle_t *zhp; @@ -2235,17 +2225,20 @@ recv_destroy(libzfs_handle_t *hdl, const char *name, i if (err) return (err); - zc.zc_objset_type = DMU_OST_ZFS; - zc.zc_defer_destroy = defer; - (void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name)); - if (flags->verbose) - (void) printf("attempting destroy %s\n", zc.zc_name); - err = ioctl(hdl->libzfs_fd, ZFS_IOC_DESTROY, &zc); + (void) printf("attempting destroy %s\n", name); + if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { + nvlist_t *nv = fnvlist_alloc(); + fnvlist_add_boolean(nv, name); + err = lzc_destroy_snaps(nv, defer, NULL); + fnvlist_free(nv); + } else { + err = lzc_destroy(name); + } if (err == 0) { if (flags->verbose) (void) printf("success\n"); - changelist_remove(clp, zc.zc_name); + changelist_remove(clp, name); } (void) changelist_postfix(clp); Modified: head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Wed Dec 26 10:37:06 2018 (r342524) +++ head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Wed Dec 26 10:37:41 2018 (r342525) @@ -296,6 +296,34 @@ lzc_remap(const char *fsname) return (error); } +int +lzc_rename(const char *source, const char *target) +{ + zfs_cmd_t zc = { 0 }; + int error; + + ASSERT3S(g_refcount, >, 0); + VERIFY3S(g_fd, !=, -1); + + (void) strlcpy(zc.zc_name, source, sizeof (zc.zc_name)); + (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); + error = ioctl(g_fd, ZFS_IOC_RENAME, &zc); + if (error != 0) + error = errno; + return (error); +} + +int +lzc_destroy(const char *fsname) +{ + int error; + + nvlist_t *args = fnvlist_alloc(); + error = lzc_ioctl(ZFS_IOC_DESTROY, fsname, args, NULL); + nvlist_free(args); + return (error); +} + /* * Creates snapshots. * Modified: head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Wed Dec 26 10:37:06 2018 (r342524) +++ head/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Wed Dec 26 10:37:41 2018 (r342525) @@ -91,6 +91,9 @@ boolean_t lzc_exists(const char *); int lzc_rollback(const char *, char *, int); int lzc_rollback_to(const char *, const char *); +int lzc_rename(const char *, const char *); +int lzc_destroy(const char *); + int lzc_channel_program(const char *, const char *, uint64_t, uint64_t, nvlist_t *, nvlist_t **); int lzc_channel_program_nosync(const char *, const char *, uint64_t, Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Wed Dec 26 10:37:06 2018 (r342524) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Wed Dec 26 10:37:41 2018 (r342525) @@ -3840,7 +3840,6 @@ zfs_ioc_pool_discard_checkpoint(const char *poolname, /* * inputs: * zc_name name of dataset to destroy - * zc_objset_type type of objset * zc_defer_destroy mark for deferred destroy * * outputs: none @@ -3848,16 +3847,24 @@ zfs_ioc_pool_discard_checkpoint(const char *poolname, static int zfs_ioc_destroy(zfs_cmd_t *zc) { + objset_t *os; + dmu_objset_type_t ost; int err; - if (zc->zc_objset_type == DMU_OST_ZFS) + err = dmu_objset_hold(zc->zc_name, FTAG, &os); + if (err != 0) + return (err); + ost = dmu_objset_type(os); + dmu_objset_rele(os, FTAG); + + if (ost == DMU_OST_ZFS) zfs_unmount_snap(zc->zc_name); if (strchr(zc->zc_name, '@')) err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); else err = dsl_destroy_head(zc->zc_name); - if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) + if (ost == DMU_OST_ZVOL && err == 0) #ifdef __FreeBSD__ zvol_remove_minors(zc->zc_name); #else @@ -4016,9 +4023,12 @@ recursive_unmount(const char *fsname, void *arg) static int zfs_ioc_rename(zfs_cmd_t *zc) { + objset_t *os; + dmu_objset_type_t ost; boolean_t recursive = zc->zc_cookie & 1; char *at; boolean_t allow_mounted = B_TRUE; + int err; #ifdef __FreeBSD__ allow_mounted = (zc->zc_cookie & 2) != 0; @@ -4032,6 +4042,12 @@ zfs_ioc_rename(zfs_cmd_t *zc) strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%')) return (SET_ERROR(EINVAL)); + err = dmu_objset_hold(zc->zc_name, FTAG, &os); + if (err != 0) + return (err); + ost = dmu_objset_type(os); + dmu_objset_rele(os, FTAG); + at = strchr(zc->zc_name, '@'); if (at != NULL) { /* snaps must be in same fs */ @@ -4040,7 +4056,7 @@ zfs_ioc_rename(zfs_cmd_t *zc) if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) return (SET_ERROR(EXDEV)); *at = '\0'; - if (zc->zc_objset_type == DMU_OST_ZFS && !allow_mounted) { + if (ost == DMU_OST_ZFS && !allow_mounted) { error = dmu_objset_find(zc->zc_name, recursive_unmount, at + 1, recursive ? DS_FIND_CHILDREN : 0); @@ -4056,7 +4072,7 @@ zfs_ioc_rename(zfs_cmd_t *zc) return (error); } else { #ifdef illumos - if (zc->zc_objset_type == DMU_OST_ZVOL) + if (ost == DMU_OST_ZVOL) (void) zvol_remove_minor(zc->zc_name); #endif return (dsl_dir_rename(zc->zc_name, zc->zc_value)); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
