From patchwork Thu Oct 31 23:23:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13858482 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F2C911DFD81 for ; Thu, 31 Oct 2024 23:23:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730416998; cv=none; b=EIkr5BeD2bbnmnnTZAhd7K8/7tLAuNEIzZm7YhxaBzNfhXGtKlIcGZuZj+yNRv3zEmy1WGg8LepXw5COCq8GiiySyV9WVACWCIp9teZc/r7wJDvFZbqOKjwLeGjOThocS2nusNqL6kq+RIy0tM49S+2i5QJiZkuNOiFyactPJh4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730416998; c=relaxed/simple; bh=To2WTMOlLMOxIpwhvGmWidF/ZbPMofBP3P/EWYt95ng=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=hRSXSeuItqEpHexpWus9PF+BqFCC4eh3bpmsSY8TloUp0tpdYCS90wa07cmuSvYX8ZYQyyoFMV6Z8a80hpxEsSHWoEgVTYw8cRaPM2VQaE9WUTiEPLD5x+t0ZPCJJxY8ht3pXLqmi6ihj7IWoNfoy2PYVNdbuxx3pWKikOTjbUU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ha32qtA2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ha32qtA2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8448DC4CEC3; Thu, 31 Oct 2024 23:23:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730416997; bh=To2WTMOlLMOxIpwhvGmWidF/ZbPMofBP3P/EWYt95ng=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=ha32qtA2i6WzBfkFZjfVrmCv9a6DlDEIQQfvOkH0dHA5tJ1kB3BybAC2oxTEqRyMl M/vryFkYT3XhqPPymboeFsArzunbfxAr4hWhPT8Qx5QeF5fA8KvPdp/LibMVho9roo iXZVTMrtU2rSCRviv/KwT9JDC2xygDBPZh57MUa21mT9dIEEG17Pvp9Xfsscp1jz1p zuLrVSLPyJRvbSqmWG2MAOwUcBJo3/m+O2kRknGUgKVavHITQKbOiSKfxSW64VHc5l t/KVO9zevTrZB0o77gPbVHkqMQbMv/nK8+HwrtSp+vKlVi2H+sI5tWNBxcQ0F8MGTL dfrOBAoflO3Vg== Date: Thu, 31 Oct 2024 16:23:17 -0700 Subject: [PATCH 8/8] xfs_db: convert rtsummary geometry From: "Darrick J. Wong" To: djwong@kernel.org, aalbersh@kernel.org Cc: linux-xfs@vger.kernel.org Message-ID: <173041567460.964205.16459457764430821254.stgit@frogsfrogsfrogs> In-Reply-To: <173041567330.964205.623580785256778088.stgit@frogsfrogsfrogs> References: <173041567330.964205.623580785256778088.stgit@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Darrick J. Wong Teach the rtconvert command to be able to convert realtime blocks and extents to locations within the rt summary. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- db/convert.c | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++--- man/man8/xfs_db.8 | 29 ++++++++++ 2 files changed, 182 insertions(+), 8 deletions(-) diff --git a/db/convert.c b/db/convert.c index 7c10690f574f7a..3014367e7d7652 100644 --- a/db/convert.c +++ b/db/convert.c @@ -53,6 +53,9 @@ typedef enum { CT_RTX, /* realtime extent */ CT_RBMBLOCK, /* block within rt bitmap */ CT_RBMWORD, /* word within rt bitmap */ + CT_RSUMBLOCK, /* block within rt summary */ + CT_RSUMLOG, /* log level for rtsummary computations */ + CT_RSUMINFO, /* info word within rt summary */ NCTS } ctype_t; @@ -77,6 +80,7 @@ typedef union { xfs_rtblock_t rtx; xfs_fileoff_t rbmblock; unsigned int rbmword; + xfs_fileoff_t rsumblock; } cval_t; static uint64_t bytevalue(ctype_t ctype, cval_t *val); @@ -105,6 +109,12 @@ static const char *rtblock_names[] = { "rtblock", "rtb", "rtbno", NULL }; static const char *rtx_names[] = { "rtx", "rtextent", NULL }; static const char *rbmblock_names[] = { "rbmblock", "rbmb", NULL }; static const char *rbmword_names[] = { "rbmword", "rbmw", NULL }; +static const char *rsumblock_names[] = { "rsumblock", "rsmb", NULL }; +static const char *rsumlog_names[] = { "rsumlog", "rsml", NULL }; +static const char *rsumword_names[] = { "rsuminfo", "rsmi", NULL }; + +static int rsuminfo; +static int rsumlog; static const ctydesc_t ctydescs[NCTS] = { [CT_AGBLOCK] = { @@ -181,39 +191,60 @@ static const ctydesc_t ctydescs[NCTS] = { static const ctydesc_t ctydescs_rt[NCTS] = { [CT_BBOFF] = { .allowed = M(DADDR) | - M(RTBLOCK), + M(RTBLOCK) | + M(RSUMLOG), .names = bboff_names, }, [CT_BLKOFF] = { - .allowed = M(RTBLOCK), + .allowed = M(RTBLOCK) | + M(RSUMLOG), .names = rtblkoff_names, }, [CT_BYTE] = { - .allowed = 0, + .allowed = M(RSUMLOG), .names = byte_names, }, [CT_DADDR] = { - .allowed = M(BBOFF), + .allowed = M(BBOFF) | + M(RSUMLOG), .names = daddr_names, }, [CT_RTBLOCK] = { .allowed = M(BBOFF) | - M(BLKOFF), + M(BLKOFF) | + M(RSUMLOG), .names = rtblock_names, }, [CT_RTX] = { .allowed = M(BBOFF) | - M(BLKOFF), + M(BLKOFF) | + M(RSUMLOG), .names = rtx_names, }, [CT_RBMBLOCK] = { - .allowed = M(RBMWORD), + .allowed = M(RBMWORD) | + M(RSUMLOG), .names = rbmblock_names, }, [CT_RBMWORD] = { - .allowed = M(RBMBLOCK), + .allowed = M(RBMBLOCK) | + M(RSUMLOG), .names = rbmword_names, }, + /* must be specified in order rsumlog -> rsuminfo -> rsumblock */ + [CT_RSUMBLOCK] = { + .allowed = 0, + .names = rsumblock_names, + }, + [CT_RSUMLOG] = { + .allowed = M(RSUMINFO) | + M(RSUMBLOCK), + .names = rsumlog_names, + }, + [CT_RSUMINFO] = { + .allowed = M(RSUMBLOCK), + .names = rsumword_names, + }, }; static const cmdinfo_t convert_cmd = @@ -224,6 +255,39 @@ static const cmdinfo_t rtconvert_cmd = { "rtconvert", NULL, rtconvert_f, 3, 9, 0, "type num [type num]... type", "convert from one realtime address form to another", NULL }; +static inline uint64_t +rsumblock_to_bytes( + xfs_fileoff_t rsumblock) +{ + /* + * We compute the rt summary file block with this formula: + * sumoffs = (log2len * sb_rbmblocks) + rbmblock; + * sumblock = sumoffs / blockwsize; + * + * Hence the return value is the inverse of this: + * sumoffs = (rsumblock * blockwsize) + rsuminfo; + * rbmblock = sumoffs % (log2len * sb_rbmblocks); + */ + xfs_rtsumoff_t sumoff; + xfs_fileoff_t rbmblock; + + if (rsumlog < 0) { + dbprintf(_("need to set rsumlog\n")); + return 0; + } + if (rsuminfo < 0) { + dbprintf(_("need to set rsuminfo\n")); + return 0; + } + + sumoff = rsuminfo + (rsumblock * mp->m_blockwsize); + if (rsumlog) + rbmblock = sumoff % (rsumlog * mp->m_sb.sb_rbmblocks); + else + rbmblock = sumoff; + return rbmblock_to_bytes(rbmblock); +} + static uint64_t bytevalue(ctype_t ctype, cval_t *val) { @@ -258,6 +322,16 @@ bytevalue(ctype_t ctype, cval_t *val) return rbmblock_to_bytes(val->rbmblock); case CT_RBMWORD: return rbmword_to_bytes(val->rbmword); + case CT_RSUMBLOCK: + return rsumblock_to_bytes(val->rbmblock); + case CT_RSUMLOG: + case CT_RSUMINFO: + /* + * These have to specified before rsumblock, and are stored in + * global variables. Hence they do not adjust the disk address + * value. + */ + return 0; case CT_NONE: case NCTS: break; @@ -361,6 +435,9 @@ convert_f(int argc, char **argv) case CT_RTX: case CT_RBMBLOCK: case CT_RBMWORD: + case CT_RSUMBLOCK: + case CT_RSUMLOG: + case CT_RSUMINFO: /* shouldn't get here */ ASSERT(0); break; @@ -373,6 +450,52 @@ convert_f(int argc, char **argv) return 0; } +static inline uint64_t +rt_daddr_to_rsumblock( + struct xfs_mount *mp, + uint64_t input) +{ + xfs_rtblock_t rtbno; + xfs_rtxnum_t rtx; + xfs_fileoff_t rbmblock; + xfs_rtsumoff_t rsumoff; + + if (rsumlog < 0) { + dbprintf(_("need to set rsumlog\n")); + return 0; + } + + rtbno = xfs_daddr_to_rtb(mp, input >> BBSHIFT); + rtx = xfs_rtb_to_rtx(mp, rtbno); + rbmblock = xfs_rtx_to_rbmblock(mp, rtx); + rsumoff = xfs_rtsumoffs(mp, rsumlog, rbmblock); + + return xfs_rtsumoffs_to_block(mp, rsumoff); +} + +static inline uint64_t +rt_daddr_to_rsuminfo( + struct xfs_mount *mp, + uint64_t input) +{ + xfs_rtblock_t rtbno; + xfs_rtxnum_t rtx; + xfs_fileoff_t rbmblock; + xfs_rtsumoff_t rsumoff; + + if (rsumlog < 0) { + dbprintf(_("need to set rsumlog\n")); + return 0; + } + + rtbno = xfs_daddr_to_rtb(mp, input >> BBSHIFT); + rtx = xfs_rtb_to_rtx(mp, rtbno); + rbmblock = xfs_rtx_to_rbmblock(mp, rtx); + rsumoff = xfs_rtsumoffs(mp, rsumlog, rbmblock); + + return xfs_rtsumoffs_to_infoword(mp, rsumoff); +} + static int rtconvert_f(int argc, char **argv) { @@ -384,6 +507,9 @@ rtconvert_f(int argc, char **argv) uint64_t v; ctype_t wtype; + rsumlog = -1; + rsuminfo = -1; + /* move past the "rtconvert" command */ argc--; argv++; @@ -452,6 +578,16 @@ rtconvert_f(int argc, char **argv) xfs_rtb_to_rtx(mp, xfs_daddr_to_rtb(mp, v >> BBSHIFT))); break; + case CT_RSUMBLOCK: + v = rt_daddr_to_rsumblock(mp, v); + break; + case CT_RSUMLOG: + dbprintf(_("cannot convert to rsumlog\n")); + return 0; + break; + case CT_RSUMINFO: + v = rt_daddr_to_rsuminfo(mp, v); + break; case CT_AGBLOCK: case CT_AGINO: case CT_AGNUMBER: @@ -535,6 +671,15 @@ getvalue(char *s, ctype_t ctype, cval_t *val) case CT_RBMWORD: val->rbmword = (unsigned int)v; break; + case CT_RSUMBLOCK: + val->rsumblock = (xfs_fileoff_t)v; + break; + case CT_RSUMLOG: + rsumlog = (unsigned int)v; + break; + case CT_RSUMINFO: + rsuminfo = (unsigned int)v; + break; case CT_NONE: case NCTS: /* NOTREACHED */ diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8 index 12fc4f3b51016b..ffa04879ce76c8 100644 --- a/man/man8/xfs_db.8 +++ b/man/man8/xfs_db.8 @@ -1183,10 +1183,39 @@ .SH COMMANDS or .B rbmw (32-bit word within a realtime bitmap block) +.HP +.B rsumblock +or +.B rsmb +(realtime summary file block) +.HP +.B rsuminfo +or +.B rsmi +(32-bit counter within a realtime summary block) +.HP +.B rsumlog +or +.B rsml +(log2len parameter used for summary file offset computations) .PD .RE .IP Only conversions that "make sense" are allowed. + +Realtime summary file location conversions have the following rules: +Each info word in the rt summary file counts the number of free extents of a +given log2(length) that start in a given rt bitmap block. + +To compute summary file location information for a given rt bitmap block, a +log2(extent length) must be specified as the last type/number pair before the +conversion type, and the type must be +.BR rsumlog . + +To compute the rt bitmap block from summary file location, the type/number pairs +must be specified exactly in the order +.BR rsumlog ", " rsuminfo ", " rsumblock . + .TP .BI "sb [" agno ] Set current address to SB header in allocation group