From owner-svn-src-all@freebsd.org Tue Aug 8 11:10:38 2017 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id ABC97DD412B; Tue, 8 Aug 2017 11:10:38 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8847D7FEED; Tue, 8 Aug 2017 11:10:38 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v78BAbam040242; Tue, 8 Aug 2017 11:10:37 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v78BAbbc040031; Tue, 8 Aug 2017 11:10:37 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201708081110.v78BAbbc040031@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Tue, 8 Aug 2017 11:10:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r322235 - vendor-sys/illumos/dist/uts/common/fs/zfs vendor-sys/illumos/dist/uts/common/fs/zfs/sys vendor/illumos/dist/cmd/zdb vendor/illumos/dist/man/man1m X-SVN-Group: vendor-sys X-SVN-Commit-Author: avg X-SVN-Commit-Paths: vendor-sys/illumos/dist/uts/common/fs/zfs vendor-sys/illumos/dist/uts/common/fs/zfs/sys vendor/illumos/dist/cmd/zdb vendor/illumos/dist/man/man1m X-SVN-Commit-Revision: 322235 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Aug 2017 11:10:38 -0000 Author: avg Date: Tue Aug 8 11:10:37 2017 New Revision: 322235 URL: https://svnweb.freebsd.org/changeset/base/322235 Log: 8067 zdb should be able to dump literal embedded block pointer illumos/illumos-gate@4923c69fddc0887da5604a262585af3efd82ee20 https://github.com/illumos/illumos-gate/commit/4923c69fddc0887da5604a262585af3efd82ee20 https://www.illumos.org/issues/8067 Add an option to zdb to print a literal embedded block pointer supplied on the command line: zdb -E [-A] word0:word1:...:word15 Reviewed by: George Wilson Reviewed by: Alex Reece Reviewed by: Yuri Pankov Approved by: Robert Mustacchi Author: Matthew Ahrens Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/blkptr.c vendor-sys/illumos/dist/uts/common/fs/zfs/sys/blkptr.h Changes in other areas also in this revision: Modified: vendor/illumos/dist/cmd/zdb/zdb.c vendor/illumos/dist/man/man1m/zdb.1m Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/blkptr.c ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/blkptr.c Tue Aug 8 11:07:34 2017 (r322234) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/blkptr.c Tue Aug 8 11:10:37 2017 (r322235) @@ -117,3 +117,36 @@ decode_embedded_bp_compressed(const blkptr_t *bp, void buf8[i] = BF64_GET(w, (i % sizeof (w)) * NBBY, NBBY); } } + +/* + * Fill in the buffer with the (decompressed) payload of the embedded + * blkptr_t. Takes into account compression and byteorder (the payload is + * treated as a stream of bytes). + * Return 0 on success, or ENOSPC if it won't fit in the buffer. + */ +int +decode_embedded_bp(const blkptr_t *bp, void *buf, int buflen) +{ + int lsize, psize; + + ASSERT(BP_IS_EMBEDDED(bp)); + + lsize = BPE_GET_LSIZE(bp); + psize = BPE_GET_PSIZE(bp); + + if (lsize > buflen) + return (ENOSPC); + ASSERT3U(lsize, ==, buflen); + + if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_OFF) { + uint8_t dstbuf[BPE_PAYLOAD_SIZE]; + decode_embedded_bp_compressed(bp, dstbuf); + VERIFY0(zio_decompress_data_buf(BP_GET_COMPRESS(bp), + dstbuf, buf, psize, buflen)); + } else { + ASSERT3U(lsize, ==, psize); + decode_embedded_bp_compressed(bp, buf); + } + + return (0); +} Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/sys/blkptr.h ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/sys/blkptr.h Tue Aug 8 11:07:34 2017 (r322234) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/sys/blkptr.h Tue Aug 8 11:10:37 2017 (r322235) @@ -30,6 +30,7 @@ extern "C" { void encode_embedded_bp_compressed(blkptr_t *, void *, enum zio_compress, int, int); void decode_embedded_bp_compressed(const blkptr_t *, void *); +int decode_embedded_bp(const blkptr_t *, void *, int); #ifdef __cplusplus }