Date: Tue, 17 Sep 2019 13:58:15 +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: r352447 - in head/cddl/contrib/opensolaris: cmd/zfs lib/libzfs/common Message-ID: <201909171358.x8HDwFI9084489@repo.freebsd.org>
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Author: avg Date: Tue Sep 17 13:58:15 2019 New Revision: 352447 URL: https://svnweb.freebsd.org/changeset/base/352447 Log: MFZoL: Add -vnP support to 'zfs send' for bookmarks zfsonlinux/zfs@835db58592d7d947e5818eb7281882e2a46073e0 We have long supported estimating a size of an incremental stream from a snapshot. We should do the same for bookmarks as well. Obtained from: ZoL Author: loli10K <ezomori.nozomu@gmail.com> MFC after: 3 days Modified: head/cddl/contrib/opensolaris/cmd/zfs/zfs.8 head/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c Modified: head/cddl/contrib/opensolaris/cmd/zfs/zfs.8 ============================================================================== --- head/cddl/contrib/opensolaris/cmd/zfs/zfs.8 Tue Sep 17 13:50:25 2019 (r352446) +++ head/cddl/contrib/opensolaris/cmd/zfs/zfs.8 Tue Sep 17 13:58:15 2019 (r352447) @@ -190,8 +190,8 @@ .Ar snapshot .Nm .Cm send -.Op Fl Lce -.Op Fl i Ar snapshot Ns | Ns bookmark +.Op Fl LPcenv +.Op Fl i Ar snapshot Ns | Ns Ar bookmark .Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot .Nm .Cm send @@ -2766,7 +2766,7 @@ on future versions of .It Xo .Nm .Cm send -.Op Fl Lce +.Op Fl LPcenv .Op Fl i Ar snapshot Ns | Ns Ar bookmark .Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot .Xc @@ -2780,7 +2780,7 @@ stream generated from a filesystem or volume is receiv name will be .Pq --head-- . .Bl -tag -width indent -.It Fl i Ar snapshot Ns | Ns bookmark +.It Fl i Ar snapshot Ns | Ns Ar bookmark Generate an incremental send stream. The incremental source must be an earlier snapshot in the destination's history. @@ -2792,6 +2792,23 @@ specified as the last component of the name If the incremental target is a clone, the incremental source can be the origin snapshot, or an earlier snapshot in the origin's filesystem, or the origin's origin, etc. +.It Fl n, -dryrun +Do a dry-run +.Pq Qq No-op +send. +Do not generate any actual send data. +This is useful in conjunction with the +.Fl v +or +.Fl P +flags to determine what data will be sent. +In this case, the verbose output will be written to standard output +.Po contrast with a non-dry-run, where the stream is written to standard output +and the verbose output goes to standard error +.Pc . +.It Fl v, -verbose +Print verbose information about the stream package generated. +This information includes a per-second report of how much data has been sent. .It Fl L, -large-block Generate a stream which may contain blocks larger than 128KB. This flag @@ -2808,6 +2825,8 @@ See for details on ZFS feature flags and the .Sy large_blocks feature. +.It Fl P, -parsable +Print machine-parsable verbose information about the stream package generated. .It Fl c, -compressed Generate a more compact stream by using compressed WRITE records for blocks which are compressed on disk and in memory (see the Modified: head/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c ============================================================================== --- head/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c Tue Sep 17 13:50:25 2019 (r352446) +++ head/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c Tue Sep 17 13:58:15 2019 (r352447) @@ -3928,13 +3928,11 @@ zfs_do_send(int argc, char **argv) if (strchr(argv[0], '@') == NULL || (fromname && strchr(fromname, '#') != NULL)) { char frombuf[ZFS_MAX_DATASET_NAME_LEN]; - enum lzc_send_flags lzc_flags = 0; if (flags.replicate || flags.doall || flags.props || - flags.dedup || flags.dryrun || flags.verbose || - flags.progress) { - (void) fprintf(stderr, - gettext("Error: " + flags.dedup || (strchr(argv[0], '@') == NULL && + (flags.dryrun || flags.verbose || flags.progress))) { + (void) fprintf(stderr, gettext("Error: " "Unsupported flag with filesystem or bookmark.\n")); return (1); } @@ -3943,13 +3941,6 @@ zfs_do_send(int argc, char **argv) if (zhp == NULL) return (1); - if (flags.largeblock) - lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; - if (flags.embed_data) - lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; - if (flags.compress) - lzc_flags |= LZC_SEND_FLAG_COMPRESS; - if (fromname != NULL && (fromname[0] == '#' || fromname[0] == '@')) { /* @@ -3963,7 +3954,7 @@ zfs_do_send(int argc, char **argv) (void) strlcat(frombuf, fromname, sizeof (frombuf)); fromname = frombuf; } - err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); + err = zfs_send_one(zhp, fromname, STDOUT_FILENO, flags); zfs_close(zhp); return (err != 0); } Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h Tue Sep 17 13:50:25 2019 (r352446) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h Tue Sep 17 13:58:15 2019 (r352447) @@ -660,7 +660,7 @@ typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, vo extern int zfs_send(zfs_handle_t *, const char *, const char *, sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); -extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); +extern int zfs_send_one(zfs_handle_t *, const char *, int, sendflags_t flags); extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd, const char *); extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c Tue Sep 17 13:50:25 2019 (r352446) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c Tue Sep 17 13:58:15 2019 (r352447) @@ -1190,16 +1190,14 @@ send_print_verbose(FILE *fout, const char *tosnap, con } } - if (size != 0) { - if (parsable) { - (void) fprintf(fout, "\t%llu", - (longlong_t)size); - } else { - char buf[16]; - zfs_nicenum(size, buf, sizeof (buf)); - (void) fprintf(fout, dgettext(TEXT_DOMAIN, - " estimated size is %s"), buf); - } + if (parsable) { + (void) fprintf(fout, "\t%llu", + (longlong_t)size); + } else if (size != 0) { + char buf[16]; + zfs_nicenum(size, buf, sizeof (buf)); + (void) fprintf(fout, dgettext(TEXT_DOMAIN, + " estimated size is %s"), buf); } (void) fprintf(fout, "\n"); } @@ -2037,17 +2035,40 @@ err_out: } int -zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, - enum lzc_send_flags flags) +zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t flags) { - int err; + int err = 0; libzfs_handle_t *hdl = zhp->zfs_hdl; - + enum lzc_send_flags lzc_flags = 0; + FILE *fout = (flags.verbose && flags.dryrun) ? stdout : stderr; char errbuf[1024]; + + if (flags.largeblock) + lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; + if (flags.embed_data) + lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; + if (flags.compress) + lzc_flags |= LZC_SEND_FLAG_COMPRESS; + + if (flags.verbose) { + uint64_t size = 0; + err = lzc_send_space(zhp->zfs_name, from, lzc_flags, &size); + if (err == 0) { + send_print_verbose(fout, zhp->zfs_name, from, size, + flags.parsable); + } else { + (void) fprintf(stderr, "Cannot estimate send size: " + "%s\n", strerror(errno)); + } + } + + if (flags.dryrun) + return (err); + (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "warning: cannot send '%s'"), zhp->zfs_name); - err = lzc_send(zhp->zfs_name, from, fd, flags); + err = lzc_send(zhp->zfs_name, from, fd, lzc_flags); if (err != 0) { switch (errno) { case EXDEV:
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