[PATCH 03/17] xfs: reduce the size of nr_ops for refcount btree cursors
From: "Darrick J. Wong" <djwong@kernel.org>
Date: 2021-10-14 20:17:13
Subsystem:
filesystems (vfs and infrastructure), the rest, xfs filesystem · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Carlos Maiolino
From: Darrick J. Wong <djwong@kernel.org> We're never going to run more than 4 billion btree operations on a refcount cursor, so shrink the field to an unsigned int to reduce the structure size. Fix whitespace alignment too. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <redacted> --- fs/xfs/libxfs/xfs_btree.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index 49ecc496238f..1018bcc43d66 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h@@ -181,18 +181,18 @@ union xfs_btree_irec { /* Per-AG btree information. */ struct xfs_btree_cur_ag { - struct xfs_perag *pag; + struct xfs_perag *pag; union { struct xfs_buf *agbp; struct xbtree_afakeroot *afake; /* for staging cursor */ }; union { struct { - unsigned long nr_ops; /* # record updates */ - int shape_changes; /* # of extent splits */ + unsigned int nr_ops; /* # record updates */ + unsigned int shape_changes; /* # of extent splits */ } refc; struct { - bool active; /* allocation cursor state */ + bool active; /* allocation cursor state */ } abt; }; };