[PATCH 07/36] xfs: pass perag to xfs_read_agf

[Dave Chinner <david@xxxxxxxxxxxxx>]

From: Dave Chinner <dchinner@xxxxxxxxxx>

We have the perag in most places we call xfs_read_agf, so pass the
perag instead of a mount/agno pair.

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_alloc.c | 26 ++++++++++++--------------
 fs/xfs/libxfs/xfs_alloc.h |  4 ++--
 fs/xfs/xfs_log_recover.c  |  2 +-
 3 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index a8f032e49fcd..d1a76b7f33b7 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -3033,27 +3033,25 @@ const struct xfs_buf_ops xfs_agf_buf_ops = {
 /*
  * Read in the allocation group header (free/alloc section).
  */
-int					/* error */
+int
 xfs_read_agf(
-	struct xfs_mount	*mp,	/* mount point structure */
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_agnumber_t		agno,	/* allocation group number */
-	int			flags,	/* XFS_BUF_ */
-	struct xfs_buf		**bpp)	/* buffer for the ag freelist header */
+	struct xfs_perag	*pag,
+	struct xfs_trans	*tp,
+	int			flags,
+	struct xfs_buf		**agfbpp)
 {
-	int		error;
+	struct xfs_mount	*mp = pag->pag_mount;
+	int			error;
 
-	trace_xfs_read_agf(mp, agno);
+	trace_xfs_read_agf(pag->pag_mount, pag->pag_agno);
 
-	ASSERT(agno != NULLAGNUMBER);
 	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
-			XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
-			XFS_FSS_TO_BB(mp, 1), flags, bpp, &xfs_agf_buf_ops);
+			XFS_AG_DADDR(mp, pag->pag_agno, XFS_AGF_DADDR(mp)),
+			XFS_FSS_TO_BB(mp, 1), flags, agfbpp, &xfs_agf_buf_ops);
 	if (error)
 		return error;
 
-	ASSERT(!(*bpp)->b_error);
-	xfs_buf_set_ref(*bpp, XFS_AGF_REF);
+	xfs_buf_set_ref(*agfbpp, XFS_AGF_REF);
 	return 0;
 }
 
@@ -3079,7 +3077,7 @@ xfs_alloc_read_agf(
 	/* We don't support trylock when freeing. */
 	ASSERT((flags & (XFS_ALLOC_FLAG_FREEING | XFS_ALLOC_FLAG_TRYLOCK)) !=
 			(XFS_ALLOC_FLAG_FREEING | XFS_ALLOC_FLAG_TRYLOCK));
-	error = xfs_read_agf(pag->pag_mount, tp, pag->pag_agno,
+	error = xfs_read_agf(pag, tp,
 			(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XBF_TRYLOCK : 0,
 			&agfbp);
 	if (error)
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index bdf7c1a75057..5efd52b3dd59 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -186,8 +186,8 @@ xfs_alloc_get_rec(
 	xfs_extlen_t		*len,	/* output: length of extent */
 	int			*stat);	/* output: success/failure */
 
-int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp,
-			xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
+int xfs_read_agf(struct xfs_perag *pag, struct xfs_trans *tp, int flags,
+		struct xfs_buf **agfbpp);
 int xfs_alloc_read_agf(struct xfs_perag *pag, struct xfs_trans *tp, int flags,
 		struct xfs_buf **agfbpp);
 int xfs_alloc_read_agfl(struct xfs_mount *mp, struct xfs_trans *tp,
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 08ea47ad3d9d..74f399ceddd9 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3534,7 +3534,7 @@ xlog_recover_check_summary(
 	itotal = 0LL;
 	ifree = 0LL;
 	for_each_perag(mp, agno, pag) {
-		error = xfs_read_agf(mp, NULL, pag->pag_agno, 0, &agfbp);
+		error = xfs_read_agf(pag, NULL, 0, &agfbp);
 		if (error) {
 			xfs_alert(mp, "%s agf read failed agno %d error %d",
 						__func__, pag->pag_agno, error);
-- 
2.33.0