diff options
Diffstat (limited to 'fs/btrfs/messages.h')
| -rw-r--r-- | fs/btrfs/messages.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/messages.h b/fs/btrfs/messages.h index 3772358f8d30..5ac410e313e4 100644 --- a/fs/btrfs/messages.h +++ b/fs/btrfs/messages.h @@ -229,4 +229,17 @@ do { \ BUG(); \ } while (0) +#if BITS_PER_LONG == 32 +#define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT) +/* + * The warning threshold is 5/8th of the MAX_LFS_FILESIZE that limits the logical + * addresses of extents. + * + * For 4K page size it's about 10T, for 64K it's 160T. + */ +#define BTRFS_32BIT_EARLY_WARN_THRESHOLD (BTRFS_32BIT_MAX_FILE_SIZE * 5 / 8) +void btrfs_warn_32bit_limit(struct btrfs_fs_info *fs_info); +void btrfs_err_32bit_limit(struct btrfs_fs_info *fs_info); +#endif + #endif |