xfs: constify feature checks

They will eventually be needed to be const for zoned growfs, but even
now having such simpler helpers as const as possible is a good thing.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Darrick J. Wong <[email protected]>
Reviewed-by: Carlos Maiolino <[email protected]>
Signed-off-by: Carlos Maiolino <[email protected]>

Author: Christoph Hellwig

fs/xfs/libxfs/xfs_rtgroup.c

@@ -338,7 +338,7 @@ struct xfs_rtginode_ops {
 	unsigned int		fmt_mask; /* all valid data fork formats */
 
 	/* Does the fs have this feature? */
-	bool			(*enabled)(struct xfs_mount *mp);
+	bool			(*enabled)(const struct xfs_mount *mp);
 
 	/* Create this rtgroup metadata inode and initialize it. */
 	int			(*create)(struct xfs_rtgroup *rtg,

fs/xfs/scrub/scrub.h

@@ -96,7 +96,7 @@ struct xchk_meta_ops {
 	int		(*repair_eval)(struct xfs_scrub *sc);
 
 	/* Decide if we even have this piece of metadata. */
-	bool		(*has)(struct xfs_mount *);
+	bool		(*has)(const struct xfs_mount *);
 
 	/* type describing required/allowed inputs */
 	enum xchk_type	type;

fs/xfs/xfs_mount.h

@@ -357,7 +357,7 @@ typedef struct xfs_mount {
 #define XFS_FEAT_NOUUID		(1ULL << 63)	/* ignore uuid during mount */
 
 #define __XFS_HAS_FEAT(name, NAME) \
-static inline bool xfs_has_ ## name (struct xfs_mount *mp) \
+static inline bool xfs_has_ ## name (const struct xfs_mount *mp) \
 { \
 	return mp->m_features & XFS_FEAT_ ## NAME; \
 }
@@ -393,25 +393,25 @@ __XFS_HAS_FEAT(large_extent_counts, NREXT64)
 __XFS_HAS_FEAT(exchange_range, EXCHANGE_RANGE)
 __XFS_HAS_FEAT(metadir, METADIR)
 
-static inline bool xfs_has_rtgroups(struct xfs_mount *mp)
+static inline bool xfs_has_rtgroups(const struct xfs_mount *mp)
 {
 	/* all metadir file systems also allow rtgroups */
 	return xfs_has_metadir(mp);
 }
 
-static inline bool xfs_has_rtsb(struct xfs_mount *mp)
+static inline bool xfs_has_rtsb(const struct xfs_mount *mp)
 {
 	/* all rtgroups filesystems with an rt section have an rtsb */
 	return xfs_has_rtgroups(mp) && xfs_has_realtime(mp);
 }
 
-static inline bool xfs_has_rtrmapbt(struct xfs_mount *mp)
+static inline bool xfs_has_rtrmapbt(const struct xfs_mount *mp)
 {
 	return xfs_has_rtgroups(mp) && xfs_has_realtime(mp) &&
 	       xfs_has_rmapbt(mp);
 }
 
-static inline bool xfs_has_rtreflink(struct xfs_mount *mp)
+static inline bool xfs_has_rtreflink(const struct xfs_mount *mp)
 {
 	return xfs_has_metadir(mp) && xfs_has_realtime(mp) &&
 	       xfs_has_reflink(mp);