Re: [PATCH 07/16] xfs: convert mount flags to features

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On Wed, Jul 14, 2021 at 02:19:03PM +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> Replace m_flags feature checks with xfs_has_<feature>() calls and
> rework the setup code to set flags in m_features.
> 
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>

Nice and straightforward!
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

--D

> ---
>  fs/xfs/libxfs/xfs_attr.c      |   4 +-
>  fs/xfs/libxfs/xfs_attr_leaf.c |  36 +++++----
>  fs/xfs/libxfs/xfs_bmap.c      |   4 +-
>  fs/xfs/libxfs/xfs_ialloc.c    |  10 +--
>  fs/xfs/scrub/scrub.c          |   2 +-
>  fs/xfs/xfs_acl.c              |   2 +-
>  fs/xfs/xfs_bmap_util.c        |   2 +-
>  fs/xfs/xfs_discard.c          |   2 +-
>  fs/xfs/xfs_export.c           |   2 +-
>  fs/xfs/xfs_file.c             |   2 +-
>  fs/xfs/xfs_filestream.h       |   2 +-
>  fs/xfs/xfs_icache.c           |   7 +-
>  fs/xfs/xfs_inode.c            |  13 ++--
>  fs/xfs/xfs_inode.h            |   3 +-
>  fs/xfs/xfs_ioctl.c            |   5 +-
>  fs/xfs/xfs_iomap.c            |   4 +-
>  fs/xfs/xfs_iops.c             |  12 +--
>  fs/xfs/xfs_log.c              |  14 ++--
>  fs/xfs/xfs_log_cil.c          |   4 +-
>  fs/xfs/xfs_mount.c            |  24 +++---
>  fs/xfs/xfs_mount.h            |  26 +------
>  fs/xfs/xfs_super.c            | 141 ++++++++++++++++------------------
>  fs/xfs/xfs_symlink.c          |   3 +-
>  23 files changed, 148 insertions(+), 176 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index d31ea7f1a7fc..11fb9e3ccf95 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -224,7 +224,7 @@ xfs_attr_try_sf_addname(
>  	if (!error && !(args->op_flags & XFS_DA_OP_NOTIME))
>  		xfs_trans_ichgtime(args->trans, dp, XFS_ICHGTIME_CHG);
>  
> -	if (dp->i_mount->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(dp->i_mount))
>  		xfs_trans_set_sync(args->trans);
>  
>  	return error;
> @@ -790,7 +790,7 @@ xfs_attr_set(
>  	 * If this is a synchronous mount, make sure that the
>  	 * transaction goes to disk before returning to the user.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(args->trans);
>  
>  	if (!(args->op_flags & XFS_DA_OP_NOTIME))
> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
> index 37d72a344ab2..058b1342be4e 100644
> --- a/fs/xfs/libxfs/xfs_attr_leaf.c
> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c
> @@ -568,7 +568,7 @@ xfs_attr_shortform_bytesfit(
>  	 * literal area, but for the old format we are done if there is no
>  	 * space in the fixed attribute fork.
>  	 */
> -	if (!(mp->m_flags & XFS_MOUNT_ATTR2))
> +	if (!xfs_has_attr2(mp))
>  		return 0;
>  
>  	dsize = dp->i_df.if_bytes;
> @@ -621,21 +621,26 @@ xfs_attr_shortform_bytesfit(
>  }
>  
>  /*
> - * Switch on the ATTR2 superblock bit (implies also FEATURES2)
> + * Switch on the ATTR2 superblock bit (implies also FEATURES2) by default unless
> + * we've explicitly been told not to use attr2 (i.e. noattr2 mount option).
>   */
>  STATIC void
>  xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp)
>  {
> -	if ((mp->m_flags & XFS_MOUNT_ATTR2) &&
> -	    !(xfs_has_attr2(mp))) {
> -		spin_lock(&mp->m_sb_lock);
> -		if (!xfs_has_attr2(mp)) {
> -			xfs_add_attr2(mp);
> -			spin_unlock(&mp->m_sb_lock);
> -			xfs_log_sb(tp);
> -		} else
> -			spin_unlock(&mp->m_sb_lock);
> +	if (xfs_has_attr2(mp))
> +		return;
> +	if (xfs_has_noattr2(mp))
> +		return;
> +
> +	spin_lock(&mp->m_sb_lock);
> +	if (xfs_has_attr2(mp)) {
> +		spin_unlock(&mp->m_sb_lock);
> +		return;
>  	}
> +
> +	xfs_add_attr2(mp);
> +	spin_unlock(&mp->m_sb_lock);
> +	xfs_log_sb(tp);
>  }
>  
>  /*
> @@ -810,8 +815,7 @@ xfs_attr_sf_removename(
>  	 * Fix up the start offset of the attribute fork
>  	 */
>  	totsize -= size;
> -	if (totsize == sizeof(xfs_attr_sf_hdr_t) &&
> -	    (mp->m_flags & XFS_MOUNT_ATTR2) &&
> +	if (totsize == sizeof(xfs_attr_sf_hdr_t) && xfs_has_attr2(mp) &&
>  	    (dp->i_df.if_format != XFS_DINODE_FMT_BTREE) &&
>  	    !(args->op_flags & XFS_DA_OP_ADDNAME)) {
>  		xfs_attr_fork_remove(dp, args->trans);
> @@ -821,7 +825,7 @@ xfs_attr_sf_removename(
>  		ASSERT(dp->i_forkoff);
>  		ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) ||
>  				(args->op_flags & XFS_DA_OP_ADDNAME) ||
> -				!(mp->m_flags & XFS_MOUNT_ATTR2) ||
> +				!xfs_has_attr2(mp) ||
>  				dp->i_df.if_format == XFS_DINODE_FMT_BTREE);
>  		xfs_trans_log_inode(args->trans, dp,
>  					XFS_ILOG_CORE | XFS_ILOG_ADATA);
> @@ -997,7 +1001,7 @@ xfs_attr_shortform_allfit(
>  		bytes += xfs_attr_sf_entsize_byname(name_loc->namelen,
>  					be16_to_cpu(name_loc->valuelen));
>  	}
> -	if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) &&
> +	if (xfs_has_attr2(dp->i_mount) &&
>  	    (dp->i_df.if_format != XFS_DINODE_FMT_BTREE) &&
>  	    (bytes == sizeof(struct xfs_attr_sf_hdr)))
>  		return -1;
> @@ -1122,7 +1126,7 @@ xfs_attr3_leaf_to_shortform(
>  		goto out;
>  
>  	if (forkoff == -1) {
> -		ASSERT(dp->i_mount->m_flags & XFS_MOUNT_ATTR2);
> +		ASSERT(xfs_has_attr2(dp->i_mount));
>  		ASSERT(dp->i_df.if_format != XFS_DINODE_FMT_BTREE);
>  		xfs_attr_fork_remove(dp, args->trans);
>  		goto out;
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index e806f8517012..51f091108a20 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -1047,7 +1047,7 @@ xfs_bmap_set_attrforkoff(
>  		ip->i_forkoff = xfs_attr_shortform_bytesfit(ip, size);
>  		if (!ip->i_forkoff)
>  			ip->i_forkoff = default_size;
> -		else if ((ip->i_mount->m_flags & XFS_MOUNT_ATTR2) && version)
> +		else if (xfs_has_attr2(ip->i_mount) && version)
>  			*version = 2;
>  		break;
>  	default:
> @@ -3422,7 +3422,7 @@ xfs_bmap_compute_alignments(
>  	int			stripe_align = 0;
>  
>  	/* stripe alignment for allocation is determined by mount parameters */
> -	if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC))
> +	if (mp->m_swidth && xfs_has_swalloc(mp))
>  		stripe_align = mp->m_swidth;
>  	else if (mp->m_dalign)
>  		stripe_align = mp->m_dalign;
> diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
> index 4bb6a936670f..a9fc71a96666 100644
> --- a/fs/xfs/libxfs/xfs_ialloc.c
> +++ b/fs/xfs/libxfs/xfs_ialloc.c
> @@ -712,7 +712,7 @@ xfs_ialloc_ag_alloc(
>  		 */
>  		isaligned = 0;
>  		if (igeo->ialloc_align) {
> -			ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
> +			ASSERT(!xfs_has_noalign(args.mp));
>  			args.alignment = args.mp->m_dalign;
>  			isaligned = 1;
>  		} else
> @@ -1953,8 +1953,7 @@ xfs_difree_inobt(
>  	 * remove the chunk if the block size is large enough for multiple inode
>  	 * chunks (that might not be free).
>  	 */
> -	if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&
> -	    rec.ir_free == XFS_INOBT_ALL_FREE &&
> +	if (!xfs_has_ikeep(mp) && rec.ir_free == XFS_INOBT_ALL_FREE &&
>  	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {
>  		struct xfs_perag	*pag = agbp->b_pag;
>  
> @@ -2098,9 +2097,8 @@ xfs_difree_finobt(
>  	 * enough for multiple chunks. Leave the finobt record to remain in sync
>  	 * with the inobt.
>  	 */
> -	if (rec.ir_free == XFS_INOBT_ALL_FREE &&
> -	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK &&
> -	    !(mp->m_flags & XFS_MOUNT_IKEEP)) {
> +	if (!xfs_has_ikeep(mp) && rec.ir_free == XFS_INOBT_ALL_FREE &&
> +	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {
>  		error = xfs_btree_delete(cur, &i);
>  		if (error)
>  			goto error;
> diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c
> index 2bed6bc573da..d9534fe0c69b 100644
> --- a/fs/xfs/scrub/scrub.c
> +++ b/fs/xfs/scrub/scrub.c
> @@ -483,7 +483,7 @@ xfs_scrub_metadata(
>  	if (XFS_FORCED_SHUTDOWN(mp))
>  		goto out;
>  	error = -ENOTRECOVERABLE;
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
> +	if (xfs_has_norecovery(mp))
>  		goto out;
>  
>  	error = xchk_validate_inputs(mp, sm);
> diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
> index d02bef24b32b..f7fc1d25b058 100644
> --- a/fs/xfs/xfs_acl.c
> +++ b/fs/xfs/xfs_acl.c
> @@ -232,7 +232,7 @@ xfs_acl_set_mode(
>  	inode->i_ctime = current_time(inode);
>  	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
>  
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  	return xfs_trans_commit(tp);
>  }
> diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
> index af0a61134d1f..a43220dba739 100644
> --- a/fs/xfs/xfs_bmap_util.c
> +++ b/fs/xfs/xfs_bmap_util.c
> @@ -1822,7 +1822,7 @@ xfs_swap_extents(
>  	 * If this is a synchronous mount, make sure that the
>  	 * transaction goes to disk before returning to the user.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	error = xfs_trans_commit(tp);
> diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
> index 736df5660f1f..0191de8ce9ce 100644
> --- a/fs/xfs/xfs_discard.c
> +++ b/fs/xfs/xfs_discard.c
> @@ -169,7 +169,7 @@ xfs_ioc_trim(
>  	 * We haven't recovered the log, so we cannot use our bnobt-guided
>  	 * storage zapping commands.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
> +	if (xfs_has_norecovery(mp))
>  		return -EROFS;
>  
>  	if (copy_from_user(&range, urange, sizeof(range)))
> diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
> index 1da59bdff245..cb359ec3389b 100644
> --- a/fs/xfs/xfs_export.c
> +++ b/fs/xfs/xfs_export.c
> @@ -63,7 +63,7 @@ xfs_fs_encode_fh(
>  	 * large enough filesystem may contain them, thus the slightly
>  	 * confusing looking conditional below.
>  	 */
> -	if (!(XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_SMALL_INUMS) ||
> +	if (!xfs_has_small_inums(XFS_M(inode->i_sb)) ||
>  	    (XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_32BITINODES))
>  		fileid_type |= XFS_FILEID_TYPE_64FLAG;
>  
> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> index fe31b53274ce..0fa02ea21ade 100644
> --- a/fs/xfs/xfs_file.c
> +++ b/fs/xfs/xfs_file.c
> @@ -1122,7 +1122,7 @@ static inline bool xfs_file_sync_writes(struct file *filp)
>  {
>  	struct xfs_inode	*ip = XFS_I(file_inode(filp));
>  
> -	if (ip->i_mount->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(ip->i_mount))
>  		return true;
>  	if (filp->f_flags & (__O_SYNC | O_DSYNC))
>  		return true;
> diff --git a/fs/xfs/xfs_filestream.h b/fs/xfs/xfs_filestream.h
> index 3af963743e4d..403226ebb80b 100644
> --- a/fs/xfs/xfs_filestream.h
> +++ b/fs/xfs/xfs_filestream.h
> @@ -21,7 +21,7 @@ static inline int
>  xfs_inode_is_filestream(
>  	struct xfs_inode	*ip)
>  {
> -	return (ip->i_mount->m_flags & XFS_MOUNT_FILESTREAMS) ||
> +	return xfs_has_filestreams(ip->i_mount) ||
>  		(ip->i_diflags & XFS_DIFLAG_FILESTREAM);
>  }
>  
> diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
> index 764fb33b5c88..81da0a59a106 100644
> --- a/fs/xfs/xfs_icache.c
> +++ b/fs/xfs/xfs_icache.c
> @@ -597,7 +597,7 @@ xfs_iget_cache_miss(
>  
>  	/*
>  	 * For version 5 superblocks, if we are initialising a new inode and we
> -	 * are not utilising the XFS_MOUNT_IKEEP inode cluster mode, we can
> +	 * are not utilising the XFS_FEAT_IKEEP inode cluster mode, we can
>  	 * simply build the new inode core with a random generation number.
>  	 *
>  	 * For version 4 (and older) superblocks, log recovery is dependent on
> @@ -606,7 +606,7 @@ xfs_iget_cache_miss(
>  	 * initializing new inodes.
>  	 */
>  	if (xfs_has_v3inodes(mp) &&
> -	    (flags & XFS_IGET_CREATE) && !(mp->m_flags & XFS_MOUNT_IKEEP)) {
> +	    (flags & XFS_IGET_CREATE) && !xfs_has_ikeep(mp)) {
>  		VFS_I(ip)->i_generation = prandom_u32();
>  	} else {
>  		struct xfs_buf		*bp;
> @@ -1052,8 +1052,7 @@ static inline bool
>  xfs_want_reclaim_sick(
>  	struct xfs_mount	*mp)
>  {
> -	return (mp->m_flags & XFS_MOUNT_UNMOUNTING) ||
> -	       (mp->m_flags & XFS_MOUNT_NORECOVERY) ||
> +	return (mp->m_flags & XFS_MOUNT_UNMOUNTING) || xfs_has_norecovery(mp) ||
>  	       XFS_FORCED_SHUTDOWN(mp);
>  }
>  
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index 67e3d8dd723f..59cea74df9a7 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -826,8 +826,7 @@ xfs_init_new_inode(
>  	inode->i_rdev = rdev;
>  	ip->i_projid = prid;
>  
> -	if (dir && !(dir->i_mode & S_ISGID) &&
> -	    (mp->m_flags & XFS_MOUNT_GRPID)) {
> +	if (dir && !(dir->i_mode & S_ISGID) && xfs_has_grpid(mp)) {
>  		inode_fsuid_set(inode, mnt_userns);
>  		inode->i_gid = dir->i_gid;
>  		inode->i_mode = mode;
> @@ -1068,7 +1067,7 @@ xfs_create(
>  	 * create transaction goes to disk before returning to
>  	 * the user.
>  	 */
> -	if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
> +	if (xfs_has_wsync(mp) || xfs_has_dirsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	/*
> @@ -1160,7 +1159,7 @@ xfs_create_tmpfile(
>  	if (error)
>  		goto out_trans_cancel;
>  
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	/*
> @@ -1294,7 +1293,7 @@ xfs_link(
>  	 * link transaction goes to disk before returning to
>  	 * the user.
>  	 */
> -	if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
> +	if (xfs_has_wsync(mp) || xfs_has_dirsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	return xfs_trans_commit(tp);
> @@ -2789,7 +2788,7 @@ xfs_remove(
>  	 * remove transaction goes to disk before returning to
>  	 * the user.
>  	 */
> -	if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
> +	if (xfs_has_wsync(mp) || xfs_has_dirsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	error = xfs_trans_commit(tp);
> @@ -2866,7 +2865,7 @@ xfs_finish_rename(
>  	 * If this is a synchronous mount, make sure that the rename transaction
>  	 * goes to disk before returning to the user.
>  	 */
> -	if (tp->t_mountp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
> +	if (xfs_has_wsync(tp->t_mountp) || xfs_has_dirsync(tp->t_mountp))
>  		xfs_trans_set_sync(tp);
>  
>  	return xfs_trans_commit(tp);
> diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
> index 4b6703dbffb8..b33790167113 100644
> --- a/fs/xfs/xfs_inode.h
> +++ b/fs/xfs/xfs_inode.h
> @@ -382,8 +382,7 @@ enum layout_break_reason {
>   * new subdirectory gets S_ISGID bit from parent.
>   */
>  #define XFS_INHERIT_GID(pip)	\
> -	(((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
> -	 (VFS_I(pip)->i_mode & S_ISGID))
> +	(xfs_has_grpid((pip)->i_mount) || (VFS_I(pip)->i_mode & S_ISGID))
>  
>  int		xfs_release(struct xfs_inode *ip);
>  void		xfs_inactive(struct xfs_inode *ip);
> diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
> index 8851e3c65ef1..1c7f01cdba71 100644
> --- a/fs/xfs/xfs_ioctl.c
> +++ b/fs/xfs/xfs_ioctl.c
> @@ -1220,8 +1220,7 @@ xfs_ioctl_setattr_prepare_dax(
>  	if (S_ISDIR(inode->i_mode))
>  		return;
>  
> -	if ((mp->m_flags & XFS_MOUNT_DAX_ALWAYS) ||
> -	    (mp->m_flags & XFS_MOUNT_DAX_NEVER))
> +	if (xfs_has_dax_always(mp) || xfs_has_dax_never(mp))
>  		return;
>  
>  	if (((fa->fsx_xflags & FS_XFLAG_DAX) &&
> @@ -1257,7 +1256,7 @@ xfs_ioctl_setattr_get_trans(
>  	if (error)
>  		goto out_error;
>  
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	return tp;
> diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
> index d8cd2583dedb..3e46ad99dd63 100644
> --- a/fs/xfs/xfs_iomap.c
> +++ b/fs/xfs/xfs_iomap.c
> @@ -132,7 +132,7 @@ xfs_eof_alignment(
>  		 * If mounted with the "-o swalloc" option the alignment is
>  		 * increased from the strip unit size to the stripe width.
>  		 */
> -		if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC))
> +		if (mp->m_swidth && xfs_has_swalloc(mp))
>  			align = mp->m_swidth;
>  		else if (mp->m_dalign)
>  			align = mp->m_dalign;
> @@ -994,7 +994,7 @@ xfs_buffered_write_iomap_begin(
>  		 * Determine the initial size of the preallocation.
>  		 * We clean up any extra preallocation when the file is closed.
>  		 */
> -		if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
> +		if (xfs_has_allocsize(mp))
>  			prealloc_blocks = mp->m_allocsize_blocks;
>  		else
>  			prealloc_blocks = xfs_iomap_prealloc_size(ip, allocfork,
> diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
> index 9c525a8b6d90..2208345546c1 100644
> --- a/fs/xfs/xfs_iops.c
> +++ b/fs/xfs/xfs_iops.c
> @@ -558,10 +558,10 @@ xfs_stat_blksize(
>  	 * default buffered I/O size, return that, otherwise return the compat
>  	 * default.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_LARGEIO) {
> +	if (xfs_has_large_iosize(mp)) {
>  		if (mp->m_swidth)
>  			return XFS_FSB_TO_B(mp, mp->m_swidth);
> -		if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
> +		if (xfs_has_allocsize(mp))
>  			return 1U << mp->m_allocsize_log;
>  	}
>  
> @@ -808,7 +808,7 @@ xfs_setattr_nonsize(
>  
>  	XFS_STATS_INC(mp, xs_ig_attrchg);
>  
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  	error = xfs_trans_commit(tp);
>  
> @@ -1037,7 +1037,7 @@ xfs_setattr_size(
>  
>  	XFS_STATS_INC(mp, xs_ig_attrchg);
>  
> -	if (mp->m_flags & XFS_MOUNT_WSYNC)
> +	if (xfs_has_wsync(mp))
>  		xfs_trans_set_sync(tp);
>  
>  	error = xfs_trans_commit(tp);
> @@ -1287,11 +1287,11 @@ xfs_inode_should_enable_dax(
>  {
>  	if (!IS_ENABLED(CONFIG_FS_DAX))
>  		return false;
> -	if (ip->i_mount->m_flags & XFS_MOUNT_DAX_NEVER)
> +	if (xfs_has_dax_never(ip->i_mount))
>  		return false;
>  	if (!xfs_inode_supports_dax(ip))
>  		return false;
> -	if (ip->i_mount->m_flags & XFS_MOUNT_DAX_ALWAYS)
> +	if (xfs_has_dax_always(ip->i_mount))
>  		return true;
>  	if (ip->i_diflags2 & XFS_DIFLAG2_DAX)
>  		return true;
> diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
> index d4247914a2c5..ac18fe03a630 100644
> --- a/fs/xfs/xfs_log.c
> +++ b/fs/xfs/xfs_log.c
> @@ -362,7 +362,7 @@ xfs_log_writable(
>  	 * mounts allow internal writes for log recovery and unmount purposes,
>  	 * so don't restrict that case.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
> +	if (xfs_has_norecovery(mp))
>  		return false;
>  	if (xfs_readonly_buftarg(mp->m_ddev_targp))
>  		return false;
> @@ -614,7 +614,7 @@ xfs_log_mount(
>  	int		error = 0;
>  	int		min_logfsbs;
>  
> -	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY)) {
> +	if (!xfs_has_norecovery(mp)) {
>  		xfs_notice(mp, "Mounting V%d Filesystem",
>  			   XFS_SB_VERSION_NUM(&mp->m_sb));
>  	} else {
> @@ -700,8 +700,8 @@ xfs_log_mount(
>  	 * skip log recovery on a norecovery mount.  pretend it all
>  	 * just worked.
>  	 */
> -	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY)) {
> -		int	readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
> +	if (!xfs_has_norecovery(mp)) {
> +		bool	readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
>  
>  		if (readonly)
>  			mp->m_flags &= ~XFS_MOUNT_RDONLY;
> @@ -761,8 +761,8 @@ xfs_log_mount_finish(
>  	bool			readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
>  	int			error = 0;
>  
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
> -		ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
> +	if (xfs_has_norecovery(mp)) {
> +		ASSERT(readonly);
>  		return 0;
>  	} else if (readonly) {
>  		/* Allow unlinked processing to proceed */
> @@ -3820,7 +3820,7 @@ xfs_log_check_lsn(
>  	 * resets the in-core LSN. We can't validate in this mode, but
>  	 * modifications are not allowed anyways so just return true.
>  	 */
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
> +	if (xfs_has_norecovery(mp))
>  		return true;
>  
>  	/*
> diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
> index 5ef47aed10f9..7739ff2419e1 100644
> --- a/fs/xfs/xfs_log_cil.c
> +++ b/fs/xfs/xfs_log_cil.c
> @@ -535,7 +535,7 @@ xlog_discard_busy_extents(
>  	struct blk_plug		plug;
>  	int			error = 0;
>  
> -	ASSERT(mp->m_flags & XFS_MOUNT_DISCARD);
> +	ASSERT(xfs_has_discard(mp));
>  
>  	blk_start_plug(&plug);
>  	list_for_each_entry(busyp, list, list) {
> @@ -597,7 +597,7 @@ xlog_cil_committed(
>  
>  	xfs_extent_busy_sort(&ctx->busy_extents);
>  	xfs_extent_busy_clear(mp, &ctx->busy_extents,
> -			     (mp->m_flags & XFS_MOUNT_DISCARD) && !abort);
> +			      xfs_has_discard(mp) && !abort);
>  
>  	spin_lock(&ctx->cil->xc_push_lock);
>  	list_del(&ctx->committing);
> diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
> index 2ef58db9f0f0..0750b2a0a6c5 100644
> --- a/fs/xfs/xfs_mount.c
> +++ b/fs/xfs/xfs_mount.c
> @@ -62,7 +62,7 @@ xfs_uuid_mount(
>  	/* Publish UUID in struct super_block */
>  	uuid_copy(&mp->m_super->s_uuid, uuid);
>  
> -	if (mp->m_flags & XFS_MOUNT_NOUUID)
> +	if (xfs_has_nouuid(mp))
>  		return 0;
>  
>  	if (uuid_is_null(uuid)) {
> @@ -104,7 +104,7 @@ xfs_uuid_unmount(
>  	uuid_t			*uuid = &mp->m_sb.sb_uuid;
>  	int			i;
>  
> -	if (mp->m_flags & XFS_MOUNT_NOUUID)
> +	if (xfs_has_nouuid(mp))
>  		return;
>  
>  	mutex_lock(&xfs_uuid_table_mutex);
> @@ -350,8 +350,7 @@ xfs_update_alignment(
>  		sbp->sb_unit = mp->m_dalign;
>  		sbp->sb_width = mp->m_swidth;
>  		mp->m_update_sb = true;
> -	} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
> -		    xfs_has_dalign(mp)) {
> +	} else if (!xfs_has_noalign(mp) && xfs_has_dalign(mp)) {
>  		mp->m_dalign = sbp->sb_unit;
>  		mp->m_swidth = sbp->sb_width;
>  	}
> @@ -770,12 +769,15 @@ xfs_mountfs(
>  	/*
>  	 * Now that we've recovered any pending superblock feature bit
>  	 * additions, we can finish setting up the attr2 behaviour for the
> -	 * mount. If no attr2 mount options were specified, the we use the
> -	 * behaviour specified by the superblock feature bit.
> +	 * mount. The noattr2 option overrides the superblock flag, so only
> +	 * check the superblock feature flag if the mount option is not set.
>  	 */
> -	if (!(mp->m_flags & (XFS_MOUNT_ATTR2|XFS_MOUNT_NOATTR2)) &&
> -	    xfs_has_attr2(mp))
> -		mp->m_flags |= XFS_MOUNT_ATTR2;
> +	if (xfs_has_noattr2(mp)) {
> +		mp->m_features &= ~XFS_FEAT_ATTR2;
> +	} else if (!xfs_has_attr2(mp) &&
> +		   (mp->m_sb.sb_features2 & XFS_SB_VERSION2_ATTR2BIT)) {
> +		mp->m_features |= XFS_FEAT_ATTR2;
> +	}
>  
>  	/*
>  	 * Get and sanity-check the root inode.
> @@ -879,10 +881,8 @@ xfs_mountfs(
>  	 * We use the same quiesce mechanism as the rw->ro remount, as they are
>  	 * semantically identical operations.
>  	 */
> -	if ((mp->m_flags & (XFS_MOUNT_RDONLY|XFS_MOUNT_NORECOVERY)) ==
> -							XFS_MOUNT_RDONLY) {
> +	if ((mp->m_flags & XFS_MOUNT_RDONLY) && !xfs_has_norecovery(mp))
>  		xfs_log_clean(mp);
> -	}
>  
>  	/*
>  	 * Complete the quota initialisation, post-log-replay component.
> diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
> index b0e8c3825ce8..387be1bfb431 100644
> --- a/fs/xfs/xfs_mount.h
> +++ b/fs/xfs/xfs_mount.h
> @@ -351,32 +351,12 @@ __XFS_HAS_FEAT(nouuid, NOUUID)
>  						   must be synchronous except
>  						   for space allocations */
>  #define XFS_MOUNT_UNMOUNTING	(1ULL << 1)	/* filesystem is unmounting */
> -#define XFS_MOUNT_WAS_CLEAN	(1ULL << 3)
> -#define XFS_MOUNT_FS_SHUTDOWN	(1ULL << 4)	/* atomic stop of all filesystem
> +#define XFS_MOUNT_WAS_CLEAN	(1ULL << 2)
> +#define XFS_MOUNT_FS_SHUTDOWN	(1ULL << 3)	/* atomic stop of all filesystem
>  						   operations, typically for
>  						   disk errors in metadata */
> -#define XFS_MOUNT_DISCARD	(1ULL << 5)	/* discard unused blocks */
> -#define XFS_MOUNT_NOALIGN	(1ULL << 7)	/* turn off stripe alignment
> -						   allocations */
> -#define XFS_MOUNT_ATTR2		(1ULL << 8)	/* allow use of attr2 format */
> -#define XFS_MOUNT_GRPID		(1ULL << 9)	/* group-ID assigned from directory */
> -#define XFS_MOUNT_NORECOVERY	(1ULL << 10)	/* no recovery - dirty fs */
> -#define XFS_MOUNT_ALLOCSIZE	(1ULL << 12)	/* specified allocation size */
> -#define XFS_MOUNT_SMALL_INUMS	(1ULL << 14)	/* user wants 32bit inodes */
>  #define XFS_MOUNT_32BITINODES	(1ULL << 15)	/* inode32 allocator active */
> -#define XFS_MOUNT_NOUUID	(1ULL << 16)	/* ignore uuid during mount */
> -#define XFS_MOUNT_IKEEP		(1ULL << 18)	/* keep empty inode clusters*/
> -#define XFS_MOUNT_SWALLOC	(1ULL << 19)	/* turn on stripe width
> -						 * allocation */
> -#define XFS_MOUNT_RDONLY	(1ULL << 20)	/* read-only fs */
> -#define XFS_MOUNT_DIRSYNC	(1ULL << 21)	/* synchronous directory ops */
> -#define XFS_MOUNT_LARGEIO	(1ULL << 22)	/* report large preferred
> -						 * I/O size in stat() */
> -#define XFS_MOUNT_FILESTREAMS	(1ULL << 24)	/* enable the filestreams
> -						   allocator */
> -#define XFS_MOUNT_NOATTR2	(1ULL << 25)	/* disable use of attr2 format */
> -#define XFS_MOUNT_DAX_ALWAYS	(1ULL << 26)
> -#define XFS_MOUNT_DAX_NEVER	(1ULL << 27)
> +#define XFS_MOUNT_RDONLY	(1ULL << 4)	/* read-only fs */
>  
>  /*
>   * Max and min values for mount-option defined I/O
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index 5aaf34572c06..9c3fc7f5e5ab 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -62,15 +62,15 @@ xfs_mount_set_dax_mode(
>  {
>  	switch (mode) {
>  	case XFS_DAX_INODE:
> -		mp->m_flags &= ~(XFS_MOUNT_DAX_ALWAYS | XFS_MOUNT_DAX_NEVER);
> +		mp->m_features &= ~(XFS_FEAT_DAX_ALWAYS | XFS_FEAT_DAX_NEVER);
>  		break;
>  	case XFS_DAX_ALWAYS:
> -		mp->m_flags |= XFS_MOUNT_DAX_ALWAYS;
> -		mp->m_flags &= ~XFS_MOUNT_DAX_NEVER;
> +		mp->m_features |= XFS_FEAT_DAX_ALWAYS;
> +		mp->m_features &= ~XFS_FEAT_DAX_NEVER;
>  		break;
>  	case XFS_DAX_NEVER:
> -		mp->m_flags |= XFS_MOUNT_DAX_NEVER;
> -		mp->m_flags &= ~XFS_MOUNT_DAX_ALWAYS;
> +		mp->m_features |= XFS_FEAT_DAX_NEVER;
> +		mp->m_features &= ~XFS_FEAT_DAX_ALWAYS;
>  		break;
>  	}
>  }
> @@ -154,33 +154,32 @@ xfs_fs_show_options(
>  {
>  	static struct proc_xfs_info xfs_info_set[] = {
>  		/* the few simple ones we can get from the mount struct */
> -		{ XFS_MOUNT_IKEEP,		",ikeep" },
> -		{ XFS_MOUNT_WSYNC,		",wsync" },
> -		{ XFS_MOUNT_NOALIGN,		",noalign" },
> -		{ XFS_MOUNT_SWALLOC,		",swalloc" },
> -		{ XFS_MOUNT_NOUUID,		",nouuid" },
> -		{ XFS_MOUNT_NORECOVERY,		",norecovery" },
> -		{ XFS_MOUNT_ATTR2,		",attr2" },
> -		{ XFS_MOUNT_FILESTREAMS,	",filestreams" },
> -		{ XFS_MOUNT_GRPID,		",grpid" },
> -		{ XFS_MOUNT_DISCARD,		",discard" },
> -		{ XFS_MOUNT_LARGEIO,		",largeio" },
> -		{ XFS_MOUNT_DAX_ALWAYS,		",dax=always" },
> -		{ XFS_MOUNT_DAX_NEVER,		",dax=never" },
> +		{ XFS_FEAT_IKEEP,		",ikeep" },
> +		{ XFS_FEAT_WSYNC,		",wsync" },
> +		{ XFS_FEAT_NOALIGN,		",noalign" },
> +		{ XFS_FEAT_SWALLOC,		",swalloc" },
> +		{ XFS_FEAT_NOUUID,		",nouuid" },
> +		{ XFS_FEAT_NORECOVERY,		",norecovery" },
> +		{ XFS_FEAT_ATTR2,		",attr2" },
> +		{ XFS_FEAT_FILESTREAMS,		",filestreams" },
> +		{ XFS_FEAT_GRPID,		",grpid" },
> +		{ XFS_FEAT_DISCARD,		",discard" },
> +		{ XFS_FEAT_LARGE_IOSIZE,	",largeio" },
> +		{ XFS_FEAT_DAX_ALWAYS,		",dax=always" },
> +		{ XFS_FEAT_DAX_NEVER,		",dax=never" },
>  		{ 0, NULL }
>  	};
>  	struct xfs_mount	*mp = XFS_M(root->d_sb);
>  	struct proc_xfs_info	*xfs_infop;
>  
>  	for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) {
> -		if (mp->m_flags & xfs_infop->flag)
> +		if (mp->m_features & xfs_infop->flag)
>  			seq_puts(m, xfs_infop->str);
>  	}
>  
> -	seq_printf(m, ",inode%d",
> -		(mp->m_flags & XFS_MOUNT_SMALL_INUMS) ? 32 : 64);
> +	seq_printf(m, ",inode%d", xfs_has_small_inums(mp) ? 32 : 64);
>  
> -	if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
> +	if (xfs_has_allocsize(mp))
>  		seq_printf(m, ",allocsize=%dk",
>  			   (1 << mp->m_allocsize_log) >> 10);
>  
> @@ -230,10 +229,10 @@ xfs_fs_show_options(
>  /*
>   * Set parameters for inode allocation heuristics, taking into account
>   * filesystem size and inode32/inode64 mount options; i.e. specifically
> - * whether or not XFS_MOUNT_SMALL_INUMS is set.
> + * whether or not XFS_FEAT_SMALL_INUMS is set.
>   *
>   * Inode allocation patterns are altered only if inode32 is requested
> - * (XFS_MOUNT_SMALL_INUMS), and the filesystem is sufficiently large.
> + * (XFS_FEAT_SMALL_INUMS), and the filesystem is sufficiently large.
>   * If altered, XFS_MOUNT_32BITINODES is set as well.
>   *
>   * An agcount independent of that in the mount structure is provided
> @@ -279,7 +278,7 @@ xfs_set_inode_alloc(
>  	 * sufficiently large, set XFS_MOUNT_32BITINODES if we must alter
>  	 * the allocator to accommodate the request.
>  	 */
> -	if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > XFS_MAXINUMBER_32)
> +	if (xfs_has_small_inums(mp) && ino > XFS_MAXINUMBER_32)
>  		mp->m_flags |= XFS_MOUNT_32BITINODES;
>  	else
>  		mp->m_flags &= ~XFS_MOUNT_32BITINODES;
> @@ -938,8 +937,7 @@ xfs_finish_flags(
>  	/*
>  	 * V5 filesystems always use attr2 format for attributes.
>  	 */
> -	if (xfs_has_crc(mp) &&
> -	    (mp->m_flags & XFS_MOUNT_NOATTR2)) {
> +	if (xfs_has_crc(mp) && xfs_has_noattr2(mp)) {
>  		xfs_warn(mp, "Cannot mount a V5 filesystem as noattr2. "
>  			     "attr2 is always enabled for V5 filesystems.");
>  		return -EINVAL;
> @@ -1123,7 +1121,7 @@ xfs_fs_warn_deprecated(
>  	 * already had the flag set
>  	 */
>  	if ((fc->purpose & FS_CONTEXT_FOR_RECONFIGURE) &&
> -			!!(XFS_M(fc->root->d_sb)->m_flags & flag) == value)
> +            !!(XFS_M(fc->root->d_sb)->m_features & flag) == value)
>  		return;
>  	xfs_warn(fc->s_fs_info, "%s mount option is deprecated.", param->key);
>  }
> @@ -1171,27 +1169,27 @@ xfs_fs_parse_param(
>  		if (suffix_kstrtoint(param->string, 10, &size))
>  			return -EINVAL;
>  		parsing_mp->m_allocsize_log = ffs(size) - 1;
> -		parsing_mp->m_flags |= XFS_MOUNT_ALLOCSIZE;
> +		parsing_mp->m_features |= XFS_FEAT_ALLOCSIZE;
>  		return 0;
>  	case Opt_grpid:
>  	case Opt_bsdgroups:
> -		parsing_mp->m_flags |= XFS_MOUNT_GRPID;
> +		parsing_mp->m_features |= XFS_FEAT_GRPID;
>  		return 0;
>  	case Opt_nogrpid:
>  	case Opt_sysvgroups:
> -		parsing_mp->m_flags &= ~XFS_MOUNT_GRPID;
> +		parsing_mp->m_features &= ~XFS_FEAT_GRPID;
>  		return 0;
>  	case Opt_wsync:
> -		parsing_mp->m_flags |= XFS_MOUNT_WSYNC;
> +		parsing_mp->m_features |= XFS_FEAT_WSYNC;
>  		return 0;
>  	case Opt_norecovery:
> -		parsing_mp->m_flags |= XFS_MOUNT_NORECOVERY;
> +		parsing_mp->m_features |= XFS_FEAT_NORECOVERY;
>  		return 0;
>  	case Opt_noalign:
> -		parsing_mp->m_flags |= XFS_MOUNT_NOALIGN;
> +		parsing_mp->m_features |= XFS_FEAT_NOALIGN;
>  		return 0;
>  	case Opt_swalloc:
> -		parsing_mp->m_flags |= XFS_MOUNT_SWALLOC;
> +		parsing_mp->m_features |= XFS_FEAT_SWALLOC;
>  		return 0;
>  	case Opt_sunit:
>  		parsing_mp->m_dalign = result.uint_32;
> @@ -1200,22 +1198,22 @@ xfs_fs_parse_param(
>  		parsing_mp->m_swidth = result.uint_32;
>  		return 0;
>  	case Opt_inode32:
> -		parsing_mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
> +		parsing_mp->m_features |= XFS_FEAT_SMALL_INUMS;
>  		return 0;
>  	case Opt_inode64:
> -		parsing_mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
> +		parsing_mp->m_features &= ~XFS_FEAT_SMALL_INUMS;
>  		return 0;
>  	case Opt_nouuid:
> -		parsing_mp->m_flags |= XFS_MOUNT_NOUUID;
> +		parsing_mp->m_features |= XFS_FEAT_NOUUID;
>  		return 0;
>  	case Opt_largeio:
> -		parsing_mp->m_flags |= XFS_MOUNT_LARGEIO;
> +		parsing_mp->m_features |= XFS_FEAT_LARGE_IOSIZE;
>  		return 0;
>  	case Opt_nolargeio:
> -		parsing_mp->m_flags &= ~XFS_MOUNT_LARGEIO;
> +		parsing_mp->m_features &= ~XFS_FEAT_LARGE_IOSIZE;
>  		return 0;
>  	case Opt_filestreams:
> -		parsing_mp->m_flags |= XFS_MOUNT_FILESTREAMS;
> +		parsing_mp->m_features |= XFS_FEAT_FILESTREAMS;
>  		return 0;
>  	case Opt_noquota:
>  		parsing_mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
> @@ -1252,10 +1250,10 @@ xfs_fs_parse_param(
>  		parsing_mp->m_qflags &= ~XFS_GQUOTA_ENFD;
>  		return 0;
>  	case Opt_discard:
> -		parsing_mp->m_flags |= XFS_MOUNT_DISCARD;
> +		parsing_mp->m_features |= XFS_FEAT_DISCARD;
>  		return 0;
>  	case Opt_nodiscard:
> -		parsing_mp->m_flags &= ~XFS_MOUNT_DISCARD;
> +		parsing_mp->m_features &= ~XFS_FEAT_DISCARD;
>  		return 0;
>  #ifdef CONFIG_FS_DAX
>  	case Opt_dax:
> @@ -1267,20 +1265,20 @@ xfs_fs_parse_param(
>  #endif
>  	/* Following mount options will be removed in September 2025 */
>  	case Opt_ikeep:
> -		xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_IKEEP, true);
> -		parsing_mp->m_flags |= XFS_MOUNT_IKEEP;
> +		xfs_fs_warn_deprecated(fc, param, XFS_FEAT_IKEEP, true);
> +		parsing_mp->m_features |= XFS_FEAT_IKEEP;
>  		return 0;
>  	case Opt_noikeep:
> -		xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_IKEEP, false);
> -		parsing_mp->m_flags &= ~XFS_MOUNT_IKEEP;
> +		xfs_fs_warn_deprecated(fc, param, XFS_FEAT_IKEEP, false);
> +		parsing_mp->m_features &= ~XFS_FEAT_IKEEP;
>  		return 0;
>  	case Opt_attr2:
> -		xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_ATTR2, true);
> -		parsing_mp->m_flags |= XFS_MOUNT_ATTR2;
> +		xfs_fs_warn_deprecated(fc, param, XFS_FEAT_ATTR2, true);
> +		parsing_mp->m_features |= XFS_FEAT_ATTR2;
>  		return 0;
>  	case Opt_noattr2:
> -		xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_NOATTR2, true);
> -		parsing_mp->m_flags |= XFS_MOUNT_NOATTR2;
> +		xfs_fs_warn_deprecated(fc, param, XFS_FEAT_NOATTR2, true);
> +		parsing_mp->m_features |= XFS_FEAT_NOATTR2;
>  		return 0;
>  	default:
>  		xfs_warn(parsing_mp, "unknown mount option [%s].", param->key);
> @@ -1294,24 +1292,23 @@ static int
>  xfs_fs_validate_params(
>  	struct xfs_mount	*mp)
>  {
> -	/*
> -	 * no recovery flag requires a read-only mount
> -	 */
> -	if ((mp->m_flags & XFS_MOUNT_NORECOVERY) &&
> -	    !(mp->m_flags & XFS_MOUNT_RDONLY)) {
> +	/* No recovery flag requires a read-only mount */
> +	if (xfs_has_norecovery(mp) && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
>  		xfs_warn(mp, "no-recovery mounts must be read-only.");
>  		return -EINVAL;
>  	}
>  
> -	if ((mp->m_flags & (XFS_MOUNT_ATTR2|XFS_MOUNT_NOATTR2)) ==
> -			  (XFS_MOUNT_ATTR2|XFS_MOUNT_NOATTR2)) {
> +	/*
> +	 * We have not read the superblock at this point, so only the attr2
> +	 * mount option can set the attr2 feature by this stage.
> +	 */
> +	if (xfs_has_attr2(mp) && xfs_has_noattr2(mp)) {
>  		xfs_warn(mp, "attr2 and noattr2 cannot both be specified.");
>  		return -EINVAL;
>  	}
>  
>  
> -	if ((mp->m_flags & XFS_MOUNT_NOALIGN) &&
> -	    (mp->m_dalign || mp->m_swidth)) {
> +	if (xfs_has_noalign(mp) && (mp->m_dalign || mp->m_swidth)) {
>  		xfs_warn(mp,
>  	"sunit and swidth options incompatible with the noalign option");
>  		return -EINVAL;
> @@ -1355,7 +1352,7 @@ xfs_fs_validate_params(
>  		return -EINVAL;
>  	}
>  
> -	if ((mp->m_flags & XFS_MOUNT_ALLOCSIZE) &&
> +	if (xfs_has_allocsize(mp) &&
>  	    (mp->m_allocsize_log > XFS_MAX_IO_LOG ||
>  	     mp->m_allocsize_log < XFS_MIN_IO_LOG)) {
>  		xfs_warn(mp, "invalid log iosize: %d [not %d-%d]",
> @@ -1541,7 +1538,7 @@ xfs_fs_fill_super(
>  		xfs_warn(mp,
>   "EXPERIMENTAL big timestamp feature in use. Use at your own risk!");
>  
> -	if (mp->m_flags & XFS_MOUNT_DAX_ALWAYS) {
> +	if (xfs_has_dax_always(mp)) {
>  		bool rtdev_is_dax = false, datadev_is_dax;
>  
>  		xfs_warn(mp,
> @@ -1565,13 +1562,13 @@ xfs_fs_fill_super(
>  		}
>  	}
>  
> -	if (mp->m_flags & XFS_MOUNT_DISCARD) {
> +	if (xfs_has_discard(mp)) {
>  		struct request_queue *q = bdev_get_queue(sb->s_bdev);
>  
>  		if (!blk_queue_discard(q)) {
>  			xfs_warn(mp, "mounting with \"discard\" option, but "
>  					"the device does not support discard");
> -			mp->m_flags &= ~XFS_MOUNT_DISCARD;
> +			mp->m_features &= ~XFS_FEAT_DISCARD;
>  		}
>  	}
>  
> @@ -1654,7 +1651,7 @@ xfs_remount_rw(
>  	struct xfs_sb		*sbp = &mp->m_sb;
>  	int error;
>  
> -	if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
> +	if (xfs_has_norecovery(mp)) {
>  		xfs_warn(mp,
>  			"ro->rw transition prohibited on norecovery mount");
>  		return -EINVAL;
> @@ -1783,16 +1780,14 @@ xfs_fs_reconfigure(
>  	sync_filesystem(mp->m_super);
>  
>  	/* inode32 -> inode64 */
> -	if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) &&
> -	    !(new_mp->m_flags & XFS_MOUNT_SMALL_INUMS)) {
> -		mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
> +	if (xfs_has_small_inums(mp) && !xfs_has_small_inums(new_mp)) {
> +		mp->m_features &= ~XFS_FEAT_SMALL_INUMS;
>  		mp->m_maxagi = xfs_set_inode_alloc(mp, sbp->sb_agcount);
>  	}
>  
>  	/* inode64 -> inode32 */
> -	if (!(mp->m_flags & XFS_MOUNT_SMALL_INUMS) &&
> -	    (new_mp->m_flags & XFS_MOUNT_SMALL_INUMS)) {
> -		mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
> +	if (!xfs_has_small_inums(mp) && xfs_has_small_inums(new_mp)) {
> +		mp->m_features |= XFS_FEAT_SMALL_INUMS;
>  		mp->m_maxagi = xfs_set_inode_alloc(mp, sbp->sb_agcount);
>  	}
>  
> @@ -1873,9 +1868,9 @@ static int xfs_init_fs_context(
>  	if (fc->sb_flags & SB_RDONLY)
>  		mp->m_flags |= XFS_MOUNT_RDONLY;
>  	if (fc->sb_flags & SB_DIRSYNC)
> -		mp->m_flags |= XFS_MOUNT_DIRSYNC;
> +		mp->m_features |= XFS_FEAT_DIRSYNC;
>  	if (fc->sb_flags & SB_SYNCHRONOUS)
> -		mp->m_flags |= XFS_MOUNT_WSYNC;
> +		mp->m_features |= XFS_FEAT_WSYNC;
>  
>  	fc->s_fs_info = mp;
>  	fc->ops = &xfs_context_ops;
> diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
> index 707d36556bc5..701a78fbf7a9 100644
> --- a/fs/xfs/xfs_symlink.c
> +++ b/fs/xfs/xfs_symlink.c
> @@ -321,9 +321,8 @@ xfs_symlink(
>  	 * symlink transaction goes to disk before returning to
>  	 * the user.
>  	 */
> -	if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC)) {
> +	if (xfs_has_wsync(mp) || xfs_has_dirsync(mp))
>  		xfs_trans_set_sync(tp);
> -	}
>  
>  	error = xfs_trans_commit(tp);
>  	if (error)
> -- 
> 2.31.1
> 



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