diff mbox series

[2/9] xfs: encode the default bc_flags in the btree ops structure

Message ID 170404994015.1795132.7396849220541714922.stgit@frogsfrogsfrogs (mailing list archive)
State Deferred, archived
Headers show
Series [1/9] xfs: set the btree cursor bc_ops in xfs_btree_alloc_cursor | expand

Commit Message

Darrick J. Wong Dec. 31, 2023, 10:20 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Certain btree flags never change for the life of a btree cursor because
they describe the geometry of the btree itself.  Encode these in the
btree ops structure and reduce the amount of code required in each btree
type's init_cursor functions.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 libxfs/xfs_alloc_btree.c    |    8 ++------
 libxfs/xfs_bmap_btree.c     |    5 +----
 libxfs/xfs_btree.h          |    6 ++++++
 libxfs/xfs_ialloc_btree.c   |    3 ---
 libxfs/xfs_refcount_btree.c |    2 --
 libxfs/xfs_rmap_btree.c     |    6 +++---
 6 files changed, 12 insertions(+), 18 deletions(-)
diff mbox series

Patch

diff --git a/libxfs/xfs_alloc_btree.c b/libxfs/xfs_alloc_btree.c
index 16f683e1dc8..2d33e0e66d5 100644
--- a/libxfs/xfs_alloc_btree.c
+++ b/libxfs/xfs_alloc_btree.c
@@ -478,6 +478,7 @@  static const struct xfs_btree_ops xfs_bnobt_ops = {
 static const struct xfs_btree_ops xfs_cntbt_ops = {
 	.rec_len		= sizeof(xfs_alloc_rec_t),
 	.key_len		= sizeof(xfs_alloc_key_t),
+	.geom_flags		= XFS_BTREE_LASTREC_UPDATE,
 
 	.dup_cursor		= xfs_allocbt_dup_cursor,
 	.set_root		= xfs_allocbt_set_root,
@@ -514,19 +515,14 @@  xfs_allocbt_init_common(
 		cur = xfs_btree_alloc_cursor(mp, tp, btnum, &xfs_cntbt_ops,
 				mp->m_alloc_maxlevels, xfs_allocbt_cur_cache);
 		cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtc_2);
-		cur->bc_flags = XFS_BTREE_LASTREC_UPDATE;
 	} else {
 		cur = xfs_btree_alloc_cursor(mp, tp, btnum, &xfs_bnobt_ops,
 				mp->m_alloc_maxlevels, xfs_allocbt_cur_cache);
 		cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtb_2);
 	}
-	cur->bc_ag.abt.active = false;
 
 	cur->bc_ag.pag = xfs_perag_hold(pag);
-
-	if (xfs_has_crc(mp))
-		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
-
+	cur->bc_ag.abt.active = false;
 	return cur;
 }
 
diff --git a/libxfs/xfs_bmap_btree.c b/libxfs/xfs_bmap_btree.c
index cfb0684f7b2..020b8274c47 100644
--- a/libxfs/xfs_bmap_btree.c
+++ b/libxfs/xfs_bmap_btree.c
@@ -516,6 +516,7 @@  xfs_bmbt_keys_contiguous(
 static const struct xfs_btree_ops xfs_bmbt_ops = {
 	.rec_len		= sizeof(xfs_bmbt_rec_t),
 	.key_len		= sizeof(xfs_bmbt_key_t),
+	.geom_flags		= XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE,
 
 	.dup_cursor		= xfs_bmbt_dup_cursor,
 	.update_cursor		= xfs_bmbt_update_cursor,
@@ -551,10 +552,6 @@  xfs_bmbt_init_common(
 			mp->m_bm_maxlevels[whichfork], xfs_bmbt_cur_cache);
 	cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_bmbt_2);
 
-	cur->bc_flags = XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE;
-	if (xfs_has_crc(mp))
-		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
-
 	cur->bc_ino.ip = ip;
 	cur->bc_ino.allocated = 0;
 	cur->bc_ino.flags = 0;
diff --git a/libxfs/xfs_btree.h b/libxfs/xfs_btree.h
index ed138889031..2c2d5db94b1 100644
--- a/libxfs/xfs_btree.h
+++ b/libxfs/xfs_btree.h
@@ -116,6 +116,9 @@  struct xfs_btree_ops {
 	size_t	key_len;
 	size_t	rec_len;
 
+	/* XFS_BTREE_* flags that determine the geometry of the btree */
+	unsigned int	geom_flags;
+
 	/* cursor operations */
 	struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *);
 	void	(*update_cursor)(struct xfs_btree_cur *src,
@@ -750,6 +753,9 @@  xfs_btree_alloc_cursor(
 	cur->bc_btnum = btnum;
 	cur->bc_maxlevels = maxlevels;
 	cur->bc_cache = cache;
+	cur->bc_flags = ops->geom_flags;
+	if (xfs_has_crc(mp))
+		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
 
 	return cur;
 }
diff --git a/libxfs/xfs_ialloc_btree.c b/libxfs/xfs_ialloc_btree.c
index 5ea08cca25b..dea661afc4d 100644
--- a/libxfs/xfs_ialloc_btree.c
+++ b/libxfs/xfs_ialloc_btree.c
@@ -465,9 +465,6 @@  xfs_inobt_init_common(
 		cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_fibt_2);
 	}
 
-	if (xfs_has_crc(mp))
-		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
-
 	cur->bc_ag.pag = xfs_perag_hold(pag);
 	return cur;
 }
diff --git a/libxfs/xfs_refcount_btree.c b/libxfs/xfs_refcount_btree.c
index 561b732b474..1ecd670a9eb 100644
--- a/libxfs/xfs_refcount_btree.c
+++ b/libxfs/xfs_refcount_btree.c
@@ -356,8 +356,6 @@  xfs_refcountbt_init_common(
 			xfs_refcountbt_cur_cache);
 	cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_refcbt_2);
 
-	cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
-
 	cur->bc_ag.pag = xfs_perag_hold(pag);
 	cur->bc_ag.refc.nr_ops = 0;
 	cur->bc_ag.refc.shape_changes = 0;
diff --git a/libxfs/xfs_rmap_btree.c b/libxfs/xfs_rmap_btree.c
index c4085a1befb..bedadb8b5bc 100644
--- a/libxfs/xfs_rmap_btree.c
+++ b/libxfs/xfs_rmap_btree.c
@@ -487,6 +487,7 @@  xfs_rmapbt_keys_contiguous(
 static const struct xfs_btree_ops xfs_rmapbt_ops = {
 	.rec_len		= sizeof(struct xfs_rmap_rec),
 	.key_len		= 2 * sizeof(struct xfs_rmap_key),
+	.geom_flags		= XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING,
 
 	.dup_cursor		= xfs_rmapbt_dup_cursor,
 	.set_root		= xfs_rmapbt_set_root,
@@ -517,7 +518,6 @@  xfs_rmapbt_init_common(
 	/* Overlapping btree; 2 keys per pointer. */
 	cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP, &xfs_rmapbt_ops,
 			mp->m_rmap_maxlevels, xfs_rmapbt_cur_cache);
-	cur->bc_flags = XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING;
 	cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2);
 
 	cur->bc_ag.pag = xfs_perag_hold(pag);
@@ -611,6 +611,8 @@  static const struct xfs_buf_ops xfs_rmapbt_mem_buf_ops = {
 static const struct xfs_btree_ops xfs_rmapbt_mem_ops = {
 	.rec_len		= sizeof(struct xfs_rmap_rec),
 	.key_len		= 2 * sizeof(struct xfs_rmap_key),
+	.geom_flags		= XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING |
+				  XFS_BTREE_IN_XFILE,
 
 	.dup_cursor		= xfbtree_dup_cursor,
 	.set_root		= xfbtree_set_root,
@@ -645,8 +647,6 @@  xfs_rmapbt_mem_cursor(
 	cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP,
 			&xfs_rmapbt_mem_ops, mp->m_rmap_maxlevels,
 			xfs_rmapbt_cur_cache);
-	cur->bc_flags = XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING |
-			XFS_BTREE_IN_XFILE;
 	cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2);
 	cur->bc_mem.xfbtree = xfbtree;
 	cur->bc_mem.head_bp = head_bp;