From 14a1e067b45614d6236e3c82b36f62caef44ac62 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 15 Jun 2016 10:25:38 -0400 Subject: btrfs: introduce BTRFS_MAX_ITEM_SIZE We use BTRFS_LEAF_DATA_SIZE - sizeof(struct btrfs_item) in several places. This introduces a BTRFS_MAX_ITEM_SIZE macro to do the same. Signed-off-by: Jeff Mahoney Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs/btrfs/ctree.h') diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 950e4ee6b66e..1d46ceec1fc0 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -150,13 +150,13 @@ struct btrfs_header { sizeof(struct btrfs_key_ptr)) #define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header)) #define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->nodesize)) +#define BTRFS_MAX_ITEM_SIZE(r) \ + (BTRFS_LEAF_DATA_SIZE(r) - sizeof(struct btrfs_item)) #define BTRFS_FILE_EXTENT_INLINE_DATA_START \ (offsetof(struct btrfs_file_extent_item, disk_bytenr)) -#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ - sizeof(struct btrfs_item) - \ +#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_MAX_ITEM_SIZE(r) - \ BTRFS_FILE_EXTENT_INLINE_DATA_START) -#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ - sizeof(struct btrfs_item) -\ +#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_MAX_ITEM_SIZE(r) - \ sizeof(struct btrfs_dir_item)) -- cgit