From: Ian Kent <raven@themaw.net>
To: linux-xfs <linux-xfs@vger.kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
Brian Foster <bfoster@redhat.com>,
Eric Sandeen <sandeen@sandeen.net>,
David Howells <dhowells@redhat.com>,
Dave Chinner <dchinner@redhat.com>,
Al Viro <viro@ZenIV.linux.org.uk>
Subject: [PATCH v8 10/16] xfs: refactor xfs_parseags()
Date: Fri, 01 Nov 2019 15:50:55 +0800 [thread overview]
Message-ID: <157259465551.28278.13910203222725564627.stgit@fedora-28> (raw)
In-Reply-To: <157259452909.28278.1001302742832626046.stgit@fedora-28>
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>
---
fs/xfs/xfs_super.c | 288 +++++++++++++++++++++++++++-------------------------
1 file changed, 152 insertions(+), 136 deletions(-)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 17188a9ed541..391c07ca6a32 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -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;
}
/*
next prev parent reply other threads:[~2019-11-01 7:51 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-01 7:49 [PATCH v8 00/16] xfs: mount API patch series Ian Kent
2019-11-01 7:50 ` [PATCH v8 01/16] xfs: remove unused struct xfs_mount field m_fsname_len Ian Kent
2019-11-01 7:50 ` [PATCH v8 02/16] xfs: use super s_id instead of struct xfs_mount m_fsname Ian Kent
2019-11-01 7:50 ` [PATCH v8 03/16] xfs: dont use XFS_IS_QUOTA_RUNNING() for option check Ian Kent
2019-11-01 17:01 ` Christoph Hellwig
2019-11-01 18:50 ` Darrick J. Wong
2019-11-01 7:50 ` [PATCH v8 04/16] xfs: use kmem functions for struct xfs_mount Ian Kent
2019-11-01 7:50 ` [PATCH v8 05/16] xfs: merge freeing of mp names and mp Ian Kent
2019-11-01 7:50 ` [PATCH v8 06/16] xfs: add xfs_remount_rw() helper Ian Kent
2019-11-01 19:35 ` Darrick J. Wong
2019-11-01 7:50 ` [PATCH v8 07/16] xfs: add xfs_remount_ro() helper Ian Kent
2019-11-01 19:35 ` Darrick J. Wong
2019-11-01 7:50 ` [PATCH v8 08/16] xfs: refactor suffix_kstrtoint() Ian Kent
2019-11-01 19:35 ` Darrick J. Wong
2019-11-01 7:50 ` [PATCH v8 09/16] xfs: avoid redundant checks when options is empty Ian Kent
2019-11-01 7:50 ` Ian Kent [this message]
2019-11-01 7:51 ` [PATCH v8 11/16] xfs: move xfs_parseargs() validation to a helper Ian Kent
2019-11-01 17:03 ` Christoph Hellwig
2019-11-01 7:51 ` [PATCH v8 12/16] xfs: dont set sb in xfs_mount_alloc() Ian Kent
2019-11-01 20:15 ` Darrick J. Wong
2019-11-02 4:41 ` Ian Kent
2019-11-04 21:12 ` Darrick J. Wong
2019-11-05 2:47 ` Ian Kent
2019-11-01 7:51 ` [PATCH v8 13/16] xfs: switch to use the new mount-api Ian Kent
2019-11-02 16:18 ` Christoph Hellwig
2019-11-01 7:51 ` [PATCH v8 14/16] xfs: move xfs_fc_reconfigure() above xfs_fc_free() Ian Kent
2019-11-01 20:16 ` Darrick J. Wong
2019-11-02 4:48 ` Ian Kent
2019-11-02 16:19 ` Christoph Hellwig
2019-11-01 7:51 ` [PATCH v8 15/16] xfs: move xfs_fc_get_tree() above xfs_fc_reconfigure() Ian Kent
2019-11-01 20:17 ` Darrick J. Wong
2019-11-02 16:19 ` Christoph Hellwig
2019-11-01 7:51 ` [PATCH v8 16/16] xfs: move xfs_fc_parse_param() above xfs_fc_get_tree() Ian Kent
2019-11-01 20:17 ` Darrick J. Wong
2019-11-02 16:19 ` Christoph Hellwig
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