[PATCH 5/6] mkfs: replace variables with opts table: -n options

Jan Tulak
2017-08-11T12:31:04Z

Remove variables that can be replaced with a direct access to the opts
table, so we have it all in a single place, accessible from anywhere.

In future, we can remove some instances where we are passing values as
arguments to helper functions, when we have the values in the opts
struct and could pass only the struct. But for now, limit the changes
to simple replacement without any change in the logic.

Signed-off-by: Jan Tulak <jtulak@redhat.com>
---
mkfs/xfs_mkfs.c | 34 ++++++++++++++++------------------
1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 4e85694f..51c1a794 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -1685,8 +1685,6 @@ main(
int dasize;
xfs_rfsblock_t dblocks;
char *dfile;
- int dirblocklog;
- int dirblocksize;
int dsflag;
bool force_overwrite;
struct fsxattr fsx;
@@ -1767,7 +1765,6 @@ main(
liflag = laflag = lsflag = lsuflag = lsunitflag = ldflag = lvflag = false;
logblocks = rtblocks = rtextblocks = 0;
Nflag = nlflag = nsflag = nvflag = false;
- dirblocklog = dirblocksize = 0;
qflag = false;
dfile = logfile = rtfile = NULL;
protofile = NULL;
@@ -2082,18 +2079,15 @@ main(

switch (getsubopt(&p, subopts, &value)) {
case N_LOG:
- dirblocklog = parse_conf_val(OPT_N,
+ parse_conf_val(OPT_N,
N_LOG,
value);
- dirblocksize = 1 << dirblocklog;
nlflag = 1;
break;
case N_SIZE:
- dirblocksize = parse_conf_val(OPT_N,
+ parse_conf_val(OPT_N,
N_SIZE,
value);
- dirblocklog =
- libxfs_highbit32(dirblocksize);
nsflag = 1;
break;
case N_VERSION:
@@ -2458,18 +2452,19 @@ _("rmapbt not supported with realtime devices\n"));
}

if (nsflag || nlflag) {
- if (dirblocksize < get_conf_val(OPT_B, B_SIZE) ||
- dirblocksize > XFS_MAX_BLOCKSIZE) {
- fprintf(stderr, _("illegal directory block size %d\n"),
- dirblocksize);
+ if (get_conf_val(OPT_N, N_SIZE) <
+ get_conf_val(OPT_B, B_SIZE) ||
+ get_conf_val(OPT_N, N_SIZE) > XFS_MAX_BLOCKSIZE) {
+ fprintf(stderr, _("illegal directory block size %lld\n"),
+ get_conf_val(OPT_N, N_SIZE));
usage();
}
} else {
if (get_conf_val(OPT_B, B_SIZE) < (1 << XFS_MIN_REC_DIRSIZE))
- dirblocklog = XFS_MIN_REC_DIRSIZE;
+ set_conf_val(OPT_N, N_LOG, XFS_MIN_REC_DIRSIZE);
else
- dirblocklog = get_conf_val(OPT_B, B_LOG);
- dirblocksize = 1 << dirblocklog;
+ set_conf_val(OPT_N, N_LOG, get_conf_val(OPT_B, B_LOG));
+ set_conf_val(OPT_N, N_SIZE, 1 << get_conf_val(OPT_N, N_LOG));
}

@@ -3053,7 +3048,8 @@ an AG size that is one stripe unit smaller, for example %llu.\n"),
sb_feat.crcs_enabled, sb_feat.dir_version,
get_conf_val(OPT_D, D_SECTLOG),
get_conf_val(OPT_B, B_LOG),
- get_conf_val(OPT_I, I_LOG), dirblocklog,
+ get_conf_val(OPT_I, I_LOG),
+ get_conf_val(OPT_N, N_LOG),
sb_feat.log_version,
get_conf_val(OPT_L, L_SUNIT),
sb_feat.finobt,
@@ -3244,7 +3240,8 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"),
get_conf_val(OPT_I, I_MAXPCT),
"", get_conf_val(OPT_D, D_SUNIT),
get_conf_val(OPT_D, D_SWIDTH),
- sb_feat.dir_version, (long long)dirblocksize, sb_feat.nci,
+ sb_feat.dir_version,
+ get_conf_val(OPT_N, N_SIZE), sb_feat.nci,
sb_feat.dirftype,
logfile, 1 << get_conf_val(OPT_B, B_LOG), (long long)logblocks,
sb_feat.log_version, "",
@@ -3296,7 +3293,8 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"),
sbp->sb_qflags = 0;
sbp->sb_unit = get_conf_val(OPT_D, D_SUNIT);
sbp->sb_width = get_conf_val(OPT_D, D_SWIDTH);
- sbp->sb_dirblklog = dirblocklog - get_conf_val(OPT_B, B_LOG);
+ sbp->sb_dirblklog = get_conf_val(OPT_N, N_LOG) -
+ get_conf_val(OPT_B, B_LOG);
if (sb_feat.log_version == 2) { /* This is stored in bytes */
set_conf_val(OPT_L, L_SUNIT,
(get_conf_val(OPT_L, L_SUNIT) == 0) ?
--
2.13.3