Merge "libfiemap_writer: test pinned file bit" (73bb3429) · Commits · e / os / android_system_core

fs_mgr/libfiemap_writer/fiemap_writer.cpp

+17 −1

Original line number	Diff line number	Diff line
		@@ -407,9 +407,25 @@ static bool IsFilePinned(int file_fd, const std::string& file_path, uint32_t fs_
		#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
		#endif

		// f2fs: export FS_NOCOW_FL flag to user
		uint32_t flags;
		int error = ioctl(file_fd, FS_IOC_GETFLAGS, &flags);
		if (error < 0) {
		if ((errno == ENOTTY) \|\| (errno == ENOTSUP)) {
		PLOG(ERROR) << "Failed to get flags, not supported by kernel: " << file_path;
		} else {
		PLOG(ERROR) << "Failed to get flags: " << file_path;
		}
		return false;
		}
		if (!(flags & FS_NOCOW_FL)) {
		LOG(ERROR) << "It is not pinned: " << file_path;
		return false;
		}

		// F2FS_IOC_GET_PIN_FILE returns the number of blocks moved.
		uint32_t moved_blocks_nr;
		int error = ioctl(file_fd, F2FS_IOC_GET_PIN_FILE, &moved_blocks_nr);
		error = ioctl(file_fd, F2FS_IOC_GET_PIN_FILE, &moved_blocks_nr);
		if (error < 0) {
		if ((errno == ENOTTY) \|\| (errno == ENOTSUP)) {
		PLOG(ERROR) << "Failed to get file pin status, not supported by kernel: " << file_path;