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[062/111] xfs: make staging file forks explicit

Message ID 171634532628.2478931.17124610217916498335.stgit@frogsfrogsfrogs (mailing list archive)
State Superseded, archived
Headers show
Series [001/111] xfs: convert kmem_zalloc() to kzalloc() | expand

Commit Message

Darrick J. Wong May 22, 2024, 3:04 a.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Source kernel commit: 42e357c806c8c0ffb9c5c2faa4ad034bfe950d77

Don't open-code "-1" for whichfork when we're creating a staging btree
for a repair; let's define an actual symbol to make grepping and
understanding easier.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 libxfs/xfs_bmap_btree.c |    2 +-
 libxfs/xfs_types.h      |    8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)
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Patch

diff --git a/libxfs/xfs_bmap_btree.c b/libxfs/xfs_bmap_btree.c
index dedc33dc5..6b377d129 100644
--- a/libxfs/xfs_bmap_btree.c
+++ b/libxfs/xfs_bmap_btree.c
@@ -613,7 +613,7 @@  xfs_bmbt_stage_cursor(
 	cur = xfs_bmbt_init_common(mp, NULL, ip, XFS_DATA_FORK);
 
 	/* Don't let anyone think we're attached to the real fork yet. */
-	cur->bc_ino.whichfork = -1;
+	cur->bc_ino.whichfork = XFS_STAGING_FORK;
 	xfs_btree_stage_ifakeroot(cur, ifake);
 	return cur;
 }
diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
index 62e02d538..a1004fb3c 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -80,11 +80,13 @@  typedef void *		xfs_failaddr_t;
 /*
  * Inode fork identifiers.
  */
-#define	XFS_DATA_FORK	0
-#define	XFS_ATTR_FORK	1
-#define	XFS_COW_FORK	2
+#define XFS_STAGING_FORK	(-1)	/* fake fork for staging a btree */
+#define	XFS_DATA_FORK		(0)
+#define	XFS_ATTR_FORK		(1)
+#define	XFS_COW_FORK		(2)
 
 #define XFS_WHICHFORK_STRINGS \
+	{ XFS_STAGING_FORK, 	"staging" }, \
 	{ XFS_DATA_FORK, 	"data" }, \
 	{ XFS_ATTR_FORK,	"attr" }, \
 	{ XFS_COW_FORK,		"cow" }