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[PATCH 1/8] mkfs: remove intermediate getstr followed by getnum

To: xfs@xxxxxxxxxxx
Subject: [PATCH 1/8] mkfs: remove intermediate getstr followed by getnum
From: Jan Tulak <jtulak@xxxxxxxxxx>
Date: Tue, 2 Aug 2016 17:42:12 +0200
Cc: Jan Tulak <jtulak@xxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1470152539-18759-1-git-send-email-jtulak@xxxxxxxxxx>
References: <1470152539-18759-1-git-send-email-jtulak@xxxxxxxxxx>
Some options loaded a number as a stringi with getstr and converted it to
number with getnum later in the code, without any reason for this approach.
(They were probably forgotten in some past cleaning.)

This patch changes them to skip the string and use getnum directly in the main
option-parsing loop, as do all the other numerical options.

Signed-off-by: Jan Tulak <jtulak@xxxxxxxxxx>
---
 mkfs/xfs_mkfs.c | 88 +++++++++++++++++++++++++--------------------------------
 1 file changed, 38 insertions(+), 50 deletions(-)

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 8007dd0..188adb4 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -1395,7 +1395,7 @@ main(
        char                    *dfile;
        int                     dirblocklog;
        int                     dirblocksize;
-       char                    *dsize;
+       __uint64_t              dbytes;
        int                     dsu;
        int                     dsw;
        int                     dsunit;
@@ -1419,7 +1419,7 @@ main(
        xfs_rfsblock_t          logblocks;
        char                    *logfile;
        int                     loginternal;
-       char                    *logsize;
+       __uint64_t              logbytes;
        xfs_fsblock_t           logstart;
        int                     lvflag;
        int                     lsflag;
@@ -1448,11 +1448,11 @@ main(
        char                    *protostring;
        int                     qflag;
        xfs_rfsblock_t          rtblocks;
+       __uint64_t              rtbytes;
        xfs_extlen_t            rtextblocks;
        xfs_rtblock_t           rtextents;
-       char                    *rtextsize;
+       __uint64_t              rtextbytes;
        char                    *rtfile;
-       char                    *rtsize;
        xfs_sb_t                *sbp;
        int                     sectorlog;
        __uint64_t              sector_mask;
@@ -1498,7 +1498,8 @@ main(
        qflag = 0;
        imaxpct = inodelog = inopblock = isize = 0;
        dfile = logfile = rtfile = NULL;
-       dsize = logsize = rtsize = rtextsize = protofile = NULL;
+       protofile = NULL;
+       rtbytes = rtextbytes = logbytes = dbytes = 0;
        dsu = dsw = dsunit = dswidth = lalign = lsu = lsunit = 0;
        nodsflag = norsflag = 0;
        force_overwrite = 0;
@@ -1564,7 +1565,7 @@ main(
                                        xi.dname = getstr(value, &dopts, 
D_NAME);
                                        break;
                                case D_SIZE:
-                                       dsize = getstr(value, &dopts, D_SIZE);
+                                       dbytes = getnum(value, &dopts, D_SIZE);
                                        break;
                                case D_SUNIT:
                                        dsunit = getnum(value, &dopts, D_SUNIT);
@@ -1711,7 +1712,7 @@ main(
                                        lvflag = 1;
                                        break;
                                case L_SIZE:
-                                       logsize = getstr(value, &lopts, L_SIZE);
+                                       logbytes = getnum(value, &lopts, 
L_SIZE);
                                        break;
                                case L_SECTLOG:
                                        lsectorlog = getnum(value, &lopts,
@@ -1835,8 +1836,7 @@ main(
                                switch (getsubopt(&p, (constpp)subopts,
                                                  &value)) {
                                case R_EXTSIZE:
-                                       rtextsize = getstr(value, &ropts,
-                                                          R_EXTSIZE);
+                                       rtextbytes = getnum(value, &ropts, 
R_EXTSIZE);
                                        break;
                                case R_FILE:
                                        xi.risfile = getnum(value, &ropts,
@@ -1848,7 +1848,7 @@ main(
                                                           R_NAME);
                                        break;
                                case R_SIZE:
-                                       rtsize = getstr(value, &ropts, R_SIZE);
+                                       rtbytes = getnum(value, &ropts, R_SIZE);
                                        break;
                                case R_NOALIGN:
                                        norsflag = getnum(value, &ropts,
@@ -1952,14 +1952,14 @@ _("Minimum block size for CRC enabled filesystems is %d 
bytes.\n"),
         * sector size mismatches between the new filesystem and the underlying
         * host filesystem.
         */
-       check_device_type(dfile, &xi.disfile, !dsize, !dfile,
+       check_device_type(dfile, &xi.disfile, !dbytes, !dfile,
                          Nflag ? NULL : &xi.dcreat, force_overwrite, "d");
        if (!loginternal)
-               check_device_type(xi.logname, &xi.lisfile, !logsize, 
!xi.logname,
+               check_device_type(xi.logname, &xi.lisfile, !logbytes, 
!xi.logname,
                                  Nflag ? NULL : &xi.lcreat,
                                  force_overwrite, "l");
        if (xi.rtname)
-               check_device_type(xi.rtname, &xi.risfile, !rtsize, !xi.rtname,
+               check_device_type(xi.rtname, &xi.risfile, !rtbytes, !xi.rtname,
                                  Nflag ? NULL : &xi.rcreat,
                                  force_overwrite, "r");
        if (xi.disfile || xi.lisfile || xi.risfile)
@@ -2119,10 +2119,7 @@ _("sparse inodes not supported without CRC support\n"));
        }
 
 
-       if (dsize) {
-               __uint64_t dbytes;
-
-               dbytes = getnum(dsize, &dopts, D_SIZE);
+       if (dbytes) {
                if (dbytes % XFS_MIN_BLOCKSIZE) {
                        fprintf(stderr,
                        _("illegal data length %lld, not a multiple of %d\n"),
@@ -2151,10 +2148,7 @@ _("sparse inodes not supported without CRC support\n"));
                usage();
        }
 
-       if (logsize) {
-               __uint64_t logbytes;
-
-               logbytes = getnum(logsize, &lopts, L_SIZE);
+       if (logbytes) {
                if (logbytes % XFS_MIN_BLOCKSIZE) {
                        fprintf(stderr,
                        _("illegal log length %lld, not a multiple of %d\n"),
@@ -2168,10 +2162,7 @@ _("sparse inodes not supported without CRC support\n"));
                                (long long)logbytes, blocksize,
                                (long long)(logblocks << blocklog));
        }
-       if (rtsize) {
-               __uint64_t rtbytes;
-
-               rtbytes = getnum(rtsize, &ropts, R_SIZE);
+       if (rtbytes) {
                if (rtbytes % XFS_MIN_BLOCKSIZE) {
                        fprintf(stderr,
                        _("illegal rt length %lld, not a multiple of %d\n"),
@@ -2188,10 +2179,7 @@ _("sparse inodes not supported without CRC support\n"));
        /*
         * If specified, check rt extent size against its constraints.
         */
-       if (rtextsize) {
-               __uint64_t rtextbytes;
-
-               rtextbytes = getnum(rtextsize, &ropts, R_EXTSIZE);
+       if (rtextbytes) {
                if (rtextbytes % blocksize) {
                        fprintf(stderr,
                _("illegal rt extent size %lld, not a multiple of %d\n"),
@@ -2208,7 +2196,7 @@ _("sparse inodes not supported without CRC support\n"));
                __uint64_t      rswidth;
                __uint64_t      rtextbytes;
 
-               if (!norsflag && !xi.risfile && !(!rtsize && xi.disfile))
+               if (!norsflag && !xi.risfile && !(!rtbytes && xi.disfile))
                        rswidth = ft.rtswidth;
                else
                        rswidth = 0;
@@ -2319,15 +2307,15 @@ _("sparse inodes not supported without CRC support\n"));
                rtfile = _("volume rt");
        else if (!xi.rtdev)
                rtfile = _("none");
-       if (dsize && xi.dsize > 0 && dblocks > DTOBT(xi.dsize)) {
+       if (dbytes && xi.dsize > 0 && dblocks > DTOBT(xi.dsize)) {
                fprintf(stderr,
-                       _("size %s specified for data subvolume is too large, "
+                       _("size %lld specified for data subvolume is too large, 
"
                        "maximum is %lld blocks\n"),
-                       dsize, (long long)DTOBT(xi.dsize));
+                       (long long)dbytes, (long long)DTOBT(xi.dsize));
                usage();
-       } else if (!dsize && xi.dsize > 0)
+       } else if (!dbytes && xi.dsize > 0)
                dblocks = DTOBT(xi.dsize);
-       else if (!dsize) {
+       else if (!dbytes) {
                fprintf(stderr, _("can't get size of data subvolume\n"));
                usage();
        }
@@ -2360,22 +2348,22 @@ reported by the device (%u).\n"),
 reported by the device (%u).\n"),
                        lsectorsize, xi.lbsize);
        }
-       if (rtsize && xi.rtsize > 0 && xi.rtbsize > sectorsize) {
+       if (rtbytes && xi.rtsize > 0 && xi.rtbsize > sectorsize) {
                fprintf(stderr, _(
 "Warning: the realtime subvolume sector size %u is less than the sector size\n\
 reported by the device (%u).\n"),
                        sectorsize, xi.rtbsize);
        }
 
-       if (rtsize && xi.rtsize > 0 && rtblocks > DTOBT(xi.rtsize)) {
+       if (rtbytes && xi.rtsize > 0 && rtblocks > DTOBT(xi.rtsize)) {
                fprintf(stderr,
-                       _("size %s specified for rt subvolume is too large, "
+                       _("size %lld specified for rt subvolume is too large, "
                        "maximum is %lld blocks\n"),
-                       rtsize, (long long)DTOBT(xi.rtsize));
+                       (long long)rtbytes, (long long)DTOBT(xi.rtsize));
                usage();
-       } else if (!rtsize && xi.rtsize > 0)
+       } else if (!rtbytes && xi.rtsize > 0)
                rtblocks = DTOBT(xi.rtsize);
-       else if (rtsize && !xi.rtdev) {
+       else if (rtbytes && !xi.rtdev) {
                fprintf(stderr,
                        _("size specified for non-existent rt subvolume\n"));
                usage();
@@ -2578,26 +2566,26 @@ an AG size that is one stripe unit smaller, for example 
%llu.\n"),
                                   sb_feat.log_version, lsunit, sb_feat.finobt);
        ASSERT(min_logblocks);
        min_logblocks = MAX(XFS_MIN_LOG_BLOCKS, min_logblocks);
-       if (!logsize && dblocks >= (1024*1024*1024) >> blocklog)
+       if (!logbytes && dblocks >= (1024*1024*1024) >> blocklog)
                min_logblocks = MAX(min_logblocks, XFS_MIN_LOG_BYTES>>blocklog);
-       if (logsize && xi.logBBsize > 0 && logblocks > DTOBT(xi.logBBsize)) {
+       if (logbytes && xi.logBBsize > 0 && logblocks > DTOBT(xi.logBBsize)) {
                fprintf(stderr,
-_("size %s specified for log subvolume is too large, maximum is %lld 
blocks\n"),
-                       logsize, (long long)DTOBT(xi.logBBsize));
+_("size %lld specified for log subvolume is too large, maximum is %lld 
blocks\n"),
+                       (long long)logbytes, (long long)DTOBT(xi.logBBsize));
                usage();
-       } else if (!logsize && xi.logBBsize > 0) {
+       } else if (!logbytes && xi.logBBsize > 0) {
                logblocks = DTOBT(xi.logBBsize);
-       } else if (logsize && !xi.logdev && !loginternal) {
+       } else if (logbytes && !xi.logdev && !loginternal) {
                fprintf(stderr,
                        _("size specified for non-existent log subvolume\n"));
                usage();
-       } else if (loginternal && logsize && logblocks >= dblocks) {
+       } else if (loginternal && logbytes && logblocks >= dblocks) {
                fprintf(stderr, _("size %lld too large for internal log\n"),
                        (long long)logblocks);
                usage();
        } else if (!loginternal && !xi.logdev) {
                logblocks = 0;
-       } else if (loginternal && !logsize) {
+       } else if (loginternal && !logbytes) {
 
                if (dblocks < GIGABYTES(1, blocklog)) {
                        /* tiny filesystems get minimum sized logs. */
@@ -2661,7 +2649,7 @@ _("size %s specified for log subvolume is too large, 
maximum is %lld blocks\n"),
                 * Readjust the log size to fit within an AG if it was sized
                 * automatically.
                 */
-               if (!logsize) {
+               if (!logbytes) {
                        logblocks = MIN(logblocks,
                                        XFS_ALLOC_AG_MAX_USABLE(mp));
 
-- 
2.5.5

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