Lines Matching refs:cow_start
1982 u64 cow_start = (u64)-1;
2121 if (cow_start == (u64)-1)
2122 cow_start = cur_offset;
2133 * COW range from cow_start to found_key.offset - 1. As the key
2137 if (cow_start != (u64)-1) {
2139 cow_start, found_key.offset - 1);
2140 cow_start = (u64)-1;
2214 if (cur_offset <= end && cow_start == (u64)-1)
2215 cow_start = cur_offset;
2217 if (cow_start != (u64)-1) {
2219 ret = fallback_to_cow(inode, locked_page, cow_start, end);
2220 cow_start = (u64)-1;
2231 * needs to be reset to cow_start to ensure the COW region is unlocked
2234 if (cow_start != (u64)-1)
2235 cur_offset = cow_start;