46 int 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);
98 int secdiscard_path(const std::string &path) {  in secdiscard_path()  argument
99     auto fiemap = path_fiemap(path, max_extents);  in secdiscard_path()
100     if (!fiemap || !check_fiemap(*fiemap, path)) {  in secdiscard_path()
103     auto block_device = block_device_for_path(path);  in secdiscard_path()
117             PLOG(ERROR) << "Unable to BLKSECDISCARD " << path;  in secdiscard_path()
125 std::unique_ptr<struct fiemap> path_fiemap(const std::string &path, uint32_t extent_count)  in path_fiemap()  argument
127     AutoCloseFD fd(path);  in path_fiemap()
130             PLOG(DEBUG) << "Unable to open " << path;  in path_fiemap()
132             PLOG(ERROR) << "Unable to open " << path;  in path_fiemap()
138         PLOG(ERROR) << "Unable to FIEMAP " << path;  in path_fiemap()
144             << " in " << path;  in path_fiemap()
151 bool check_fiemap(const struct fiemap &fiemap, const std::string &path) {  in check_fiemap()  argument
154         LOG(ERROR) << "Extent " << mapped -1 << " was not the last in " << path;  in check_fiemap()
160             LOG(ERROR) << "Extent " << i << " has unexpected flags " << flags << ": " << path;  in check_fiemap()
181 std::string block_device_for_path(const std::string &path)  in block_device_for_path()  argument
194             path.size() > l &&  in block_device_for_path()
195             path[l] == '/' &&  in block_device_for_path()
196             path.compare(0, l, mnt->mnt_dir) == 0) {  in block_device_for_path()
202         LOG(ERROR) <<"Didn't find a mountpoint to match path " << path;  in block_device_for_path()
205     LOG(DEBUG) << "For path " << path << " block device is " << result;  in block_device_for_path()