diff options
| -rw-r--r-- | include/migration/qemu-file.h | 9 | ||||
| -rw-r--r-- | migration/qemu-file.c | 36 | ||||
| -rw-r--r-- | migration/savevm.c | 8 |
3 files changed, 8 insertions, 45 deletions
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 43eba9b86c..36af5f4236 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -28,14 +28,6 @@ #include "io/channel.h" -/* This function writes a chunk of data to a file at the given position. - * The pos argument can be ignored if the file is only being used for - * streaming. The handler must write all of the data or return a negative - * errno value. - */ -typedef ssize_t (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf, - int64_t pos, size_t size); - /* Read a chunk of data from a file at the given position. The pos argument * can be ignored if the file is only be used for streaming. The number of * bytes actually read should be returned. @@ -109,7 +101,6 @@ typedef QEMUFile *(QEMURetPathFunc)(void *opaque); typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr); typedef struct QEMUFileOps { - QEMUFilePutBufferFunc *put_buffer; QEMUFileGetBufferFunc *get_buffer; QEMUFileCloseFunc *close; QEMUFileGetFD *get_fd; diff --git a/migration/qemu-file.c b/migration/qemu-file.c index cf743d1fd5..6790040bd6 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -129,7 +129,7 @@ void qemu_file_set_error(QEMUFile *f, int ret) bool qemu_file_is_writable(QEMUFile *f) { - return f->ops->writev_buffer || f->ops->put_buffer; + return f->ops->writev_buffer; } /** @@ -148,16 +148,9 @@ void qemu_fflush(QEMUFile *f) return; } - if (f->ops->writev_buffer) { - if (f->iovcnt > 0) { - expect = iov_size(f->iov, f->iovcnt); - ret = f->ops->writev_buffer(f->opaque, f->iov, f->iovcnt, f->pos); - } - } else { - if (f->buf_index > 0) { - expect = f->buf_index; - ret = f->ops->put_buffer(f->opaque, f->buf, f->pos, f->buf_index); - } + if (f->iovcnt > 0) { + expect = iov_size(f->iov, f->iovcnt); + ret = f->ops->writev_buffer(f->opaque, f->iov, f->iovcnt, f->pos); } if (ret >= 0) { @@ -337,11 +330,6 @@ static void add_to_iovec(QEMUFile *f, const uint8_t *buf, size_t size) void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, size_t size) { - if (!f->ops->writev_buffer) { - qemu_put_buffer(f, buf, size); - return; - } - if (f->last_error) { return; } @@ -365,9 +353,7 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size) } memcpy(f->buf + f->buf_index, buf, l); f->bytes_xfer += l; - if (f->ops->writev_buffer) { - add_to_iovec(f, f->buf + f->buf_index, l); - } + add_to_iovec(f, f->buf + f->buf_index, l); f->buf_index += l; if (f->buf_index == IO_BUF_SIZE) { qemu_fflush(f); @@ -388,9 +374,7 @@ void qemu_put_byte(QEMUFile *f, int v) f->buf[f->buf_index] = v; f->bytes_xfer++; - if (f->ops->writev_buffer) { - add_to_iovec(f, f->buf + f->buf_index, 1); - } + add_to_iovec(f, f->buf + f->buf_index, 1); f->buf_index++; if (f->buf_index == IO_BUF_SIZE) { qemu_fflush(f); @@ -554,12 +538,8 @@ int64_t qemu_ftell_fast(QEMUFile *f) int64_t ret = f->pos; int i; - if (f->ops->writev_buffer) { - for (i = 0; i < f->iovcnt; i++) { - ret += f->iov[i].iov_len; - } - } else { - ret += f->buf_index; + for (i = 0; i < f->iovcnt; i++) { + ret += f->iov[i].iov_len; } return ret; diff --git a/migration/savevm.c b/migration/savevm.c index 2bd345200a..6c21231131 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -160,13 +160,6 @@ static ssize_t block_writev_buffer(void *opaque, struct iovec *iov, int iovcnt, return qiov.size; } -static ssize_t block_put_buffer(void *opaque, const uint8_t *buf, - int64_t pos, size_t size) -{ - bdrv_save_vmstate(opaque, buf, pos, size); - return size; -} - static ssize_t block_get_buffer(void *opaque, uint8_t *buf, int64_t pos, size_t size) { @@ -184,7 +177,6 @@ static const QEMUFileOps bdrv_read_ops = { }; static const QEMUFileOps bdrv_write_ops = { - .put_buffer = block_put_buffer, .writev_buffer = block_writev_buffer, .close = bdrv_fclose }; |