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[07/17] xfs: rearrange xfs_btree_cur fields for better packing

Message ID 163424265349.756780.751665886469662355.stgit@magnolia (mailing list archive)
State Accepted, archived
Headers show
Series xfs: support dynamic btree cursor height | expand

Commit Message

Darrick J. Wong Oct. 14, 2021, 8:17 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Reduce the size of the btree cursor structure some more by rearranging
fields to eliminate unused space.  While we're at it, fix the ragged
indentation and a spelling error.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/libxfs/xfs_btree.h |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
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Patch

diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index 0181fc98bc12..eaffd8223ce6 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -234,11 +234,11 @@  struct xfs_btree_cur
 	struct xfs_trans	*bc_tp;	/* transaction we're in, if any */
 	struct xfs_mount	*bc_mp;	/* file system mount struct */
 	const struct xfs_btree_ops *bc_ops;
-	uint			bc_flags; /* btree features - below */
+	unsigned int		bc_flags; /* btree features - below */
+	xfs_btnum_t		bc_btnum; /* identifies which btree type */
 	union xfs_btree_irec	bc_rec;	/* current insert/search record value */
-	uint8_t		bc_nlevels;	/* number of levels in the tree */
-	xfs_btnum_t	bc_btnum;	/* identifies which btree type */
-	int		bc_statoff;	/* offset of btre stats array */
+	uint8_t			bc_nlevels; /* number of levels in the tree */
+	int			bc_statoff; /* offset of btree stats array */
 
 	/*
 	 * Short btree pointers need an agno to be able to turn the pointers