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| author | Jeff Mahoney <jeffm@suse.com> | 2016-06-15 10:25:38 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-07-26 13:54:24 +0200 |
| commit | 14a1e067b45614d6236e3c82b36f62caef44ac62 (patch) | |
| tree | 2efadf6e036988c7b3f9d3d8e120b76db51b29e8 /fs/btrfs/file-item.c | |
| parent | 0c83b62e2222a8872f0b65d50540fdfa53b675ff (diff) | |
| download | linux-14a1e067b45614d6236e3c82b36f62caef44ac62.tar.gz | |
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/file-item.c')
| -rw-r--r-- | fs/btrfs/file-item.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 6b58d0620e2f..cdbbf85a269b 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -27,9 +27,8 @@ #include "print-tree.h" #include "compression.h" -#define __MAX_CSUM_ITEMS(r, size) ((unsigned long)(((BTRFS_LEAF_DATA_SIZE(r) - \ - sizeof(struct btrfs_item) * 2) / \ - size) - 1)) +#define __MAX_CSUM_ITEMS(r, size) \ + ((unsigned long)(((BTRFS_MAX_ITEM_SIZE(r) * 2) / size) - 1)) #define MAX_CSUM_ITEMS(r, size) (min_t(u32, __MAX_CSUM_ITEMS(r, size), \ PAGE_SIZE)) |