42 static char *pread_buf_and_check(int fd, const struct iovec *iov, int iovcnt, ssize_t *totalbytesre…  in pread_buf_and_check()  argument
48     if ((iov == NULL) || (iovcnt > IOV_MAX)) {  in pread_buf_and_check()
54         if (SSIZE_MAX - buflen < iov[i].iov_len) {  in pread_buf_and_check()
58         buflen += iov[i].iov_len;  in pread_buf_and_check()
91 ssize_t vfs_readv(int fd, const struct iovec *iov, int iovcnt, off_t *offset)  in vfs_readv()  argument
101     buf = pread_buf_and_check(fd, iov, iovcnt, &totalbytesread, offset);  in vfs_readv()
109         bytestoread = iov[i].iov_len;  in vfs_readv()
115             ret = LOS_CopyFromKernel(iov[i].iov_base, bytesleft, curbuf, bytesleft);  in vfs_readv()
120         ret = LOS_CopyFromKernel(iov[i].iov_base, bytestoread, curbuf, bytestoread);  in vfs_readv()
135     if ((i == 0) && (ret == iov[i].iov_len)) {  in vfs_readv()
144 ssize_t readv(int fd, const struct iovec *iov, int iovcnt)  in readv()  argument
146     return vfs_readv(fd, iov, iovcnt, NULL);  in readv()