46 bool secdiscard_path(const std::string &path);
47 std::unique_ptr<struct fiemap> path_fiemap(const std::string &path, uint32_t extent_count);
48 bool check_fiemap(const struct fiemap &fiemap, const std::string &path);
50 std::string block_device_for_path(const std::string &path);
101 bool secdiscard_path(const std::string &path) {  in secdiscard_path()  argument
102     auto fiemap = path_fiemap(path, max_extents);  in secdiscard_path()
103     if (!fiemap || !check_fiemap(*fiemap, path)) {  in secdiscard_path()
106     auto block_device = block_device_for_path(path);  in secdiscard_path()
120             PLOG(ERROR) << "Unable to BLKSECDISCARD " << path;  in secdiscard_path()
129 std::unique_ptr<struct fiemap> path_fiemap(const std::string &path, uint32_t extent_count)  in path_fiemap()  argument
131     AutoCloseFD fd(path);  in path_fiemap()
134             PLOG(DEBUG) << "Unable to open " << path;  in path_fiemap()
136             PLOG(ERROR) << "Unable to open " << path;  in path_fiemap()
142         PLOG(ERROR) << "Unable to FIEMAP " << path;  in path_fiemap()
148             << " in " << path;  in path_fiemap()
155 bool check_fiemap(const struct fiemap &fiemap, const std::string &path) {  in check_fiemap()  argument
158         LOG(ERROR) << "Extent " << mapped -1 << " was not the last in " << path;  in check_fiemap()
164             LOG(ERROR) << "Extent " << i << " has unexpected flags " << flags << ": " << path;  in check_fiemap()
185 std::string block_device_for_path(const std::string &path)  in block_device_for_path()  argument
198             path.size() > l &&  in block_device_for_path()
199             path[l] == '/' &&  in block_device_for_path()
200             path.compare(0, l, mnt->mnt_dir) == 0) {  in block_device_for_path()
206         LOG(ERROR) <<"Didn't find a mountpoint to match path " << path;  in block_device_for_path()
209     LOG(DEBUG) << "For path " << path << " block device is " << result;  in block_device_for_path()