xfs: move RT bitmap and summary information to the rtgroup

Move the pointers to the RT bitmap and summary inodes as well as the
summary cache to the rtgroups structure to prepare for having a
separate bitmap and summary inodes for each rtgroup.

Code using the inodes now needs to operate on a rtgroup.  Where easily
possible such code is converted to iterate over all rtgroups, else
rtgroup 0 (the only one that can currently exist) is hardcoded.

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

1 files changed, 23 insertions, 41 deletions

diff --git a/fs/xfs/libxfs/xfs_rtbitmap.h b/fs/xfs/libxfs/xfs_rtbitmap.h
index 140513d1d6bc..b3cbc56aa255 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.h
+++ b/fs/xfs/libxfs/xfs_rtbitmap.h
@@ -6,7 +6,10 @@
 #ifndef __XFS_RTBITMAP_H__
 #define	__XFS_RTBITMAP_H__
 
+#include "xfs_rtgroup.h"
+
 struct xfs_rtalloc_args {
+	struct xfs_rtgroup	*rtg;
 	struct xfs_mount	*mp;
 	struct xfs_trans	*tp;
 
@@ -268,7 +271,7 @@ struct xfs_rtalloc_rec {
 };
 
 typedef int (*xfs_rtalloc_query_range_fn)(
-	struct xfs_mount		*mp,
+	struct xfs_rtgroup		*rtg,
 	struct xfs_trans		*tp,
 	const struct xfs_rtalloc_rec	*rec,
 	void				*priv);
@@ -291,53 +294,37 @@ int xfs_rtmodify_summary(struct xfs_rtalloc_args *args, int log,
 		xfs_fileoff_t bbno, int delta);
 int xfs_rtfree_range(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
 		xfs_rtxlen_t len);
-int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp,
+int xfs_rtalloc_query_range(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
 		xfs_rtxnum_t start, xfs_rtxnum_t end,
 		xfs_rtalloc_query_range_fn fn, void *priv);
-int xfs_rtalloc_query_all(struct xfs_mount *mp, struct xfs_trans *tp,
-			  xfs_rtalloc_query_range_fn fn,
-			  void *priv);
-int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
-			       xfs_rtxnum_t start, xfs_rtxlen_t len,
-			       bool *is_free);
-/*
- * Free an extent in the realtime subvolume.  Length is expressed in
- * realtime extents, as is the block number.
- */
-int					/* error */
-xfs_rtfree_extent(
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_rtxnum_t		start,	/* starting rtext number to free */
-	xfs_rtxlen_t		len);	/* length of extent freed */
-
+int xfs_rtalloc_query_all(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
+		xfs_rtalloc_query_range_fn fn, void *priv);
+int xfs_rtalloc_extent_is_free(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
+		xfs_rtxnum_t start, xfs_rtxlen_t len, bool *is_free);
+int xfs_rtfree_extent(struct xfs_trans *tp, struct xfs_rtgroup *rtg,
+		xfs_rtxnum_t start, xfs_rtxlen_t len);
 /* Same as above, but in units of rt blocks. */
-int xfs_rtfree_blocks(struct xfs_trans *tp, xfs_fsblock_t rtbno,
-		xfs_filblks_t rtlen);
+int xfs_rtfree_blocks(struct xfs_trans *tp, struct xfs_rtgroup *rtg,
+		xfs_fsblock_t rtbno, xfs_filblks_t rtlen);
 
 xfs_filblks_t xfs_rtbitmap_blockcount(struct xfs_mount *mp, xfs_rtbxlen_t
 		rtextents);
 xfs_filblks_t xfs_rtsummary_blockcount(struct xfs_mount *mp,
 		unsigned int rsumlevels, xfs_extlen_t rbmblocks);
 
-int xfs_rtfile_initialize_blocks(struct xfs_inode *ip,
-		xfs_fileoff_t offset_fsb, xfs_fileoff_t end_fsb, void *data);
+int xfs_rtfile_initialize_blocks(struct xfs_rtgroup *rtg,
+		enum xfs_rtg_inodes type, xfs_fileoff_t offset_fsb,
+		xfs_fileoff_t end_fsb, void *data);
 
-void xfs_rtbitmap_lock(struct xfs_mount *mp);
-void xfs_rtbitmap_unlock(struct xfs_mount *mp);
-void xfs_rtbitmap_trans_join(struct xfs_trans *tp);
-
-/* Lock the rt bitmap inode in shared mode */
-#define XFS_RBMLOCK_BITMAP	(1U << 0)
-/* Lock the rt summary inode in shared mode */
-#define XFS_RBMLOCK_SUMMARY	(1U << 1)
-
-void xfs_rtbitmap_lock_shared(struct xfs_mount *mp,
-		unsigned int rbmlock_flags);
-void xfs_rtbitmap_unlock_shared(struct xfs_mount *mp,
-		unsigned int rbmlock_flags);
 #else /* CONFIG_XFS_RT */
 # define xfs_rtfree_extent(t,b,l)			(-ENOSYS)
-# define xfs_rtfree_blocks(t,rb,rl)			(-ENOSYS)
+
+static inline int xfs_rtfree_blocks(struct xfs_trans *tp,
+		struct xfs_rtgroup *rtg, xfs_fsblock_t rtbno,
+		xfs_filblks_t rtlen)
+{
+	return -ENOSYS;
+}
 # define xfs_rtalloc_query_range(m,t,l,h,f,p)		(-ENOSYS)
 # define xfs_rtalloc_query_all(m,t,f,p)			(-ENOSYS)
 # define xfs_rtbitmap_read_buf(a,b)			(-ENOSYS)
@@ -351,11 +338,6 @@ xfs_rtbitmap_blockcount(struct xfs_mount *mp, xfs_rtbxlen_t rtextents)
 	return 0;
 }
 # define xfs_rtsummary_blockcount(mp, l, b)		(0)
-# define xfs_rtbitmap_lock(mp)			do { } while (0)
-# define xfs_rtbitmap_trans_join(tp)		do { } while (0)
-# define xfs_rtbitmap_unlock(mp)		do { } while (0)
-# define xfs_rtbitmap_lock_shared(mp, lf)	do { } while (0)
-# define xfs_rtbitmap_unlock_shared(mp, lf)	do { } while (0)
 #endif /* CONFIG_XFS_RT */
 
 #endif /* __XFS_RTBITMAP_H__ */