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xfs: remove the dsunit and dswidth variables in

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There is no real need for the local variables here - either they
are applied to the mount structure, or if the noalign mount option
is set the mount will fail entirely if either is set.  Removing
them helps cleaning up the mount API conversion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@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:
Christoph Hellwig 2019-10-28 08:41:43 -07:00 committed by Darrick J. Wong
parent 8da57c5c00
commit 69e8575dee
1 changed files with 8 additions and 19 deletions
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27
fs/xfs/xfs_super.c
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@ -159,8 +159,6 @@ xfs_parseargs(
const struct super_block *sb = mp->m_super;
char *p;
substring_t args[MAX_OPT_ARGS];
int dsunit = 0;
int dswidth = 0;
int iosize = 0;
uint8_t iosizelog = 0;
@ -252,11 +250,11 @@ xfs_parseargs(
mp->m_flags |= XFS_MOUNT_SWALLOC;
break;
case Opt_sunit:
if (match_int(args, &dsunit))
if (match_int(args, &mp->m_dalign))
return -EINVAL;
break;
case Opt_swidth:
if (match_int(args, &dswidth))
if (match_int(args, &mp->m_swidth))
return -EINVAL;
break;
case Opt_inode32:
@ -350,7 +348,8 @@ xfs_parseargs(
return -EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) {
if ((mp->m_flags & XFS_MOUNT_NOALIGN) &&
(mp->m_dalign || mp->m_swidth)) {
xfs_warn(mp,
"sunit and swidth options incompatible with the noalign option");
return -EINVAL;
@ -363,30 +362,20 @@ xfs_parseargs(
}
#endif
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
if ((mp->m_dalign && !mp->m_swidth) ||
(!mp->m_dalign && mp->m_swidth)) {
xfs_warn(mp, "sunit and swidth must be specified together");
return -EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
if (mp->m_dalign && (mp->m_swidth % mp->m_dalign != 0)) {
xfs_warn(mp,
"stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
mp->m_swidth, mp->m_dalign);
return -EINVAL;
}
done:
if (dsunit && !(mp->m_flags & XFS_MOUNT_NOALIGN)) {
/*
* At this point the superblock has not been read
* in, therefore we do not know the block size.
* Before the mount call ends we will convert
* these to FSBs.
*/
mp->m_dalign = dsunit;
mp->m_swidth = dswidth;
}
if (mp->m_logbufs != -1 &&
mp->m_logbufs != 0 &&
(mp->m_logbufs < XLOG_MIN_ICLOGS ||