diff options
Diffstat (limited to 'convert/source-fs.c')
| -rw-r--r-- | convert/source-fs.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/convert/source-fs.c b/convert/source-fs.c index 4755efb2..d6dfc077 100644 --- a/convert/source-fs.c +++ b/convert/source-fs.c @@ -28,6 +28,23 @@ const struct simple_range btrfs_reserved_ranges[3] = { { BTRFS_SB_MIRROR_OFFSET(2), SZ_64K } }; +int ext2_acl_count(size_t size) +{ + ssize_t s; + + size -= sizeof(ext2_acl_header); + s = size - 4 * sizeof(ext2_acl_entry_short); + if (s < 0) { + if (size % sizeof(ext2_acl_entry_short)) + return -1; + return size / sizeof(ext2_acl_entry_short); + } else { + if (s % sizeof(ext2_acl_entry)) + return -1; + return s / sizeof(ext2_acl_entry) + 4; + } +} + static u64 intersect_with_reserved(u64 bytenr, u64 num_bytes) { int i; |