xfs: remove xfs_perag_t

Almost unused, gets rid of another typedef.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

fs/xfs/libxfs/xfs_ag.c

@@ -108,8 +108,8 @@ xfs_initialize_perag_data(
 	xfs_agnumber_t		agcount)
 {
 	xfs_agnumber_t		index;
-	xfs_perag_t	*pag;
-	xfs_sb_t	*sbp = &mp->m_sb;
+	struct xfs_perag	*pag;
+	struct xfs_sb		*sbp = &mp->m_sb;
 	uint64_t		ifree = 0;
 	uint64_t		ialloc = 0;
 	uint64_t		bfree = 0;

fs/xfs/libxfs/xfs_ag.h

@@ -29,7 +29,7 @@ struct xfs_ag_resv {
  * Per-ag incore structure, copies of information in agf and agi, to improve the
  * performance of allocation group selection.
  */
-typedef struct xfs_perag {
+struct xfs_perag {
 	struct xfs_mount *pag_mount;	/* owner filesystem */
 	xfs_agnumber_t	pag_agno;	/* AG this structure belongs to */
 	atomic_t	pag_ref;	/* perag reference count */
@@ -102,7 +102,7 @@ typedef struct xfs_perag {
 	 * or have some other means to control concurrency.
 	 */
 	struct rhashtable	pagi_unlinked_hash;
-} xfs_perag_t;
+};
 
 int xfs_initialize_perag(struct xfs_mount *mp, xfs_agnumber_t agcount,
 			xfs_agnumber_t *maxagi);

fs/xfs/libxfs/xfs_alloc.c

@@ -2694,21 +2694,21 @@ xfs_alloc_fix_freelist(
  * Get a block from the freelist.
  * Returns with the buffer for the block gotten.
  */
-int				/* error */
+int
 xfs_alloc_get_freelist(
-	xfs_trans_t	*tp,	/* transaction pointer */
-	struct xfs_buf	*agbp,	/* buffer containing the agf structure */
-	xfs_agblock_t	*bnop,	/* block address retrieved from freelist */
-	int		btreeblk) /* destination is a AGF btree */
+	struct xfs_trans	*tp,
+	struct xfs_buf		*agbp,
+	xfs_agblock_t		*bnop,
+	int			btreeblk)
 {
 	struct xfs_agf		*agf = agbp->b_addr;
-	struct xfs_buf	*agflbp;/* buffer for a.g. freelist structure */
-	xfs_agblock_t	bno;	/* block number returned */
+	struct xfs_buf		*agflbp;
+	xfs_agblock_t		bno;
 	__be32			*agfl_bno;
 	int			error;
 	int			logflags;
-	xfs_mount_t	*mp = tp->t_mountp;
-	xfs_perag_t	*pag;	/* per allocation group data */
+	struct xfs_mount	*mp = tp->t_mountp;
+	struct xfs_perag	*pag;
 
 	/*
 	 * Freelist is empty, give up.
@@ -2818,20 +2818,20 @@ xfs_alloc_pagf_init(
 /*
  * Put the block on the freelist for the allocation group.
  */
-int					/* error */
+int
 xfs_alloc_put_freelist(
-	xfs_trans_t		*tp,	/* transaction pointer */
-	struct xfs_buf		*agbp,	/* buffer for a.g. freelist header */
-	struct xfs_buf		*agflbp,/* buffer for a.g. free block array */
-	xfs_agblock_t		bno,	/* block being freed */
-	int			btreeblk) /* block came from a AGF btree */
+	struct xfs_trans	*tp,
+	struct xfs_buf		*agbp,
+	struct xfs_buf		*agflbp,
+	xfs_agblock_t		bno,
+	int			btreeblk)
 {
 	struct xfs_mount	*mp = tp->t_mountp;
 	struct xfs_agf		*agf = agbp->b_addr;
-	__be32			*blockp;/* pointer to array entry */
+	struct xfs_perag	*pag;
+	__be32			*blockp;
 	int			error;
 	int			logflags;
-	xfs_perag_t		*pag;	/* per allocation group data */
 	__be32			*agfl_bno;
 	int			startoff;