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xfs: refactor xfs_parseags()

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Refactor xfs_parseags(), move the entire token case block to a separate
function in an attempt to highlight the code that actually changes in
converting to use the new mount api.

Also change the break in the switch to a return in the factored out
xfs_fc_parse_param() function.

Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Ian Kent 2019-11-04 13:58:44 -08:00 committed by Darrick J. Wong
parent 846410ccd1
commit 48a06e1b57
1 changed files with 152 additions and 136 deletions
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288
fs/xfs/xfs_super.c
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@ -160,6 +160,154 @@ match_kstrtoint(
return ret;
}
static int
xfs_fc_parse_param(
int token,
char *p,
substring_t *args,
struct xfs_mount *mp)
{
int size = 0;
switch (token) {
case Opt_logbufs:
if (match_int(args, &mp->m_logbufs))
return -EINVAL;
return 0;
case Opt_logbsize:
if (match_kstrtoint(args, 10, &mp->m_logbsize))
return -EINVAL;
return 0;
case Opt_logdev:
kfree(mp->m_logname);
mp->m_logname = match_strdup(args);
if (!mp->m_logname)
return -ENOMEM;
return 0;
case Opt_rtdev:
kfree(mp->m_rtname);
mp->m_rtname = match_strdup(args);
if (!mp->m_rtname)
return -ENOMEM;
return 0;
case Opt_allocsize:
if (match_kstrtoint(args, 10, &size))
return -EINVAL;
mp->m_allocsize_log = ffs(size) - 1;
mp->m_flags |= XFS_MOUNT_ALLOCSIZE;
return 0;
case Opt_grpid:
case Opt_bsdgroups:
mp->m_flags |= XFS_MOUNT_GRPID;
return 0;
case Opt_nogrpid:
case Opt_sysvgroups:
mp->m_flags &= ~XFS_MOUNT_GRPID;
return 0;
case Opt_wsync:
mp->m_flags |= XFS_MOUNT_WSYNC;
return 0;
case Opt_norecovery:
mp->m_flags |= XFS_MOUNT_NORECOVERY;
return 0;
case Opt_noalign:
mp->m_flags |= XFS_MOUNT_NOALIGN;
return 0;
case Opt_swalloc:
mp->m_flags |= XFS_MOUNT_SWALLOC;
return 0;
case Opt_sunit:
if (match_int(args, &mp->m_dalign))
return -EINVAL;
return 0;
case Opt_swidth:
if (match_int(args, &mp->m_swidth))
return -EINVAL;
return 0;
case Opt_inode32:
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
return 0;
case Opt_inode64:
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
return 0;
case Opt_nouuid:
mp->m_flags |= XFS_MOUNT_NOUUID;
return 0;
case Opt_ikeep:
mp->m_flags |= XFS_MOUNT_IKEEP;
return 0;
case Opt_noikeep:
mp->m_flags &= ~XFS_MOUNT_IKEEP;
return 0;
case Opt_largeio:
mp->m_flags |= XFS_MOUNT_LARGEIO;
return 0;
case Opt_nolargeio:
mp->m_flags &= ~XFS_MOUNT_LARGEIO;
return 0;
case Opt_attr2:
mp->m_flags |= XFS_MOUNT_ATTR2;
return 0;
case Opt_noattr2:
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
return 0;
case Opt_filestreams:
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
return 0;
case Opt_noquota:
mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD;
mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE;
return 0;
case Opt_quota:
case Opt_uquota:
case Opt_usrquota:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
return 0;
case Opt_qnoenforce:
case Opt_uqnoenforce:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
return 0;
case Opt_pquota:
case Opt_prjquota:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_PQUOTA_ENFD);
return 0;
case Opt_pqnoenforce:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_PQUOTA_ENFD;
return 0;
case Opt_gquota:
case Opt_grpquota:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_GQUOTA_ENFD);
return 0;
case Opt_gqnoenforce:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_GQUOTA_ENFD;
return 0;
case Opt_discard:
mp->m_flags |= XFS_MOUNT_DISCARD;
return 0;
case Opt_nodiscard:
mp->m_flags &= ~XFS_MOUNT_DISCARD;
return 0;
#ifdef CONFIG_FS_DAX
case Opt_dax:
mp->m_flags |= XFS_MOUNT_DAX;
return 0;
#endif
default:
xfs_warn(mp, "unknown mount option [%s].", p);
return -EINVAL;
}
return 0;
}
/*
* This function fills in xfs_mount_t fields based on mount args.
* Note: the superblock has _not_ yet been read in.
@ -179,7 +327,6 @@ xfs_parseargs(
const struct super_block *sb = mp->m_super;
char *p;
substring_t args[MAX_OPT_ARGS];
int size = 0;
/*
* Copy binary VFS mount flags we are interested in.
@ -203,146 +350,15 @@ xfs_parseargs(
while ((p = strsep(&options, ",")) != NULL) {
int token;
int ret;
if (!*p)
continue;
token = match_token(p, tokens, args);
switch (token) {
case Opt_logbufs:
if (match_int(args, &mp->m_logbufs))
return -EINVAL;
break;
case Opt_logbsize:
if (match_kstrtoint(args, 10, &mp->m_logbsize))
return -EINVAL;
break;
case Opt_logdev:
kfree(mp->m_logname);
mp->m_logname = match_strdup(args);
if (!mp->m_logname)
return -ENOMEM;
break;
case Opt_rtdev:
kfree(mp->m_rtname);
mp->m_rtname = match_strdup(args);
if (!mp->m_rtname)
return -ENOMEM;
break;
case Opt_allocsize:
if (match_kstrtoint(args, 10, &size))
return -EINVAL;
mp->m_allocsize_log = ffs(size) - 1;
mp->m_flags |= XFS_MOUNT_ALLOCSIZE;
break;
case Opt_grpid:
case Opt_bsdgroups:
mp->m_flags |= XFS_MOUNT_GRPID;
break;
case Opt_nogrpid:
case Opt_sysvgroups:
mp->m_flags &= ~XFS_MOUNT_GRPID;
break;
case Opt_wsync:
mp->m_flags |= XFS_MOUNT_WSYNC;
break;
case Opt_norecovery:
mp->m_flags |= XFS_MOUNT_NORECOVERY;
break;
case Opt_noalign:
mp->m_flags |= XFS_MOUNT_NOALIGN;
break;
case Opt_swalloc:
mp->m_flags |= XFS_MOUNT_SWALLOC;
break;
case Opt_sunit:
if (match_int(args, &mp->m_dalign))
return -EINVAL;
break;
case Opt_swidth:
if (match_int(args, &mp->m_swidth))
return -EINVAL;
break;
case Opt_inode32:
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
break;
case Opt_inode64:
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
break;
case Opt_nouuid:
mp->m_flags |= XFS_MOUNT_NOUUID;
break;
case Opt_ikeep:
mp->m_flags |= XFS_MOUNT_IKEEP;
break;
case Opt_noikeep:
mp->m_flags &= ~XFS_MOUNT_IKEEP;
break;
case Opt_largeio:
mp->m_flags |= XFS_MOUNT_LARGEIO;
break;
case Opt_nolargeio:
mp->m_flags &= ~XFS_MOUNT_LARGEIO;
break;
case Opt_attr2:
mp->m_flags |= XFS_MOUNT_ATTR2;
break;
case Opt_noattr2:
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
break;
case Opt_filestreams:
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
break;
case Opt_noquota:
mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD;
mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE;
break;
case Opt_quota:
case Opt_uquota:
case Opt_usrquota:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
break;
case Opt_qnoenforce:
case Opt_uqnoenforce:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
break;
case Opt_pquota:
case Opt_prjquota:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_PQUOTA_ENFD);
break;
case Opt_pqnoenforce:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_PQUOTA_ENFD;
break;
case Opt_gquota:
case Opt_grpquota:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_GQUOTA_ENFD);
break;
case Opt_gqnoenforce:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_GQUOTA_ENFD;
break;
case Opt_discard:
mp->m_flags |= XFS_MOUNT_DISCARD;
break;
case Opt_nodiscard:
mp->m_flags &= ~XFS_MOUNT_DISCARD;
break;
#ifdef CONFIG_FS_DAX
case Opt_dax:
mp->m_flags |= XFS_MOUNT_DAX;
break;
#endif
default:
xfs_warn(mp, "unknown mount option [%s].", p);
return -EINVAL;
}
ret = xfs_fc_parse_param(token, p, args, mp);
if (ret)
return ret;
}
/*