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authorJeff Mahoney <jeffm@suse.com>2016-06-15 10:25:38 -0400
committerDavid Sterba <dsterba@suse.com>2016-07-26 13:54:24 +0200
commit14a1e067b45614d6236e3c82b36f62caef44ac62 (patch)
tree2efadf6e036988c7b3f9d3d8e120b76db51b29e8 /fs/btrfs/extent-tree.c
parent0c83b62e2222a8872f0b65d50540fdfa53b675ff (diff)
downloadblackbird-op-linux-14a1e067b45614d6236e3c82b36f62caef44ac62.tar.gz
blackbird-op-linux-14a1e067b45614d6236e3c82b36f62caef44ac62.zip
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 <jeffm@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c4487e177234..44549d706dcd 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2779,7 +2779,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes)
u64 num_csums_per_leaf;
u64 num_csums;
- csum_size = BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item);
+ csum_size = BTRFS_MAX_ITEM_SIZE(root);
num_csums_per_leaf = div64_u64(csum_size,
(u64)btrfs_super_csum_size(root->fs_info->super_copy));
num_csums = div64_u64(csum_bytes, root->sectorsize);
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