/*
* raw image and blk dev are similar, so reuse raw image ops.
*/
-static struct disk_image_operations raw_image_ro_mmap_ops = {
- .read_sector = raw_image__read_sector_ro_mmap,
- .write_sector = raw_image__write_sector_ro_mmap,
- .close = raw_image__close_ro_mmap,
+static struct disk_image_operations raw_image_ops = {
+ .read_sector = raw_image__read_sector,
+ .write_sector = raw_image__write_sector,
+ .close = raw_image__close,
};
struct disk_image *blkdev__probe(const char *filename, struct stat *st)
return NULL;
}
- return disk_image__new(fd, size, &raw_image_ro_mmap_ops, DISK_IMAGE_MMAP);
+ return disk_image__new(fd, size, &raw_image_ops, DISK_IMAGE_MMAP);
}
return pwritev_in_full(disk->fd, iov, iovcount, offset);
}
-ssize_t raw_image__read_sector_ro_mmap(struct disk_image *disk, u64 sector, void *dst, u32 dst_len)
+ssize_t raw_image__read_sector(struct disk_image *disk, u64 sector, void *dst, u32 dst_len)
{
u64 offset = sector << SECTOR_SHIFT;
return dst_len;
}
-ssize_t raw_image__write_sector_ro_mmap(struct disk_image *disk, u64 sector, void *src, u32 src_len)
+ssize_t raw_image__write_sector(struct disk_image *disk, u64 sector, void *src, u32 src_len)
{
u64 offset = sector << SECTOR_SHIFT;
return src_len;
}
-int raw_image__close_ro_mmap(struct disk_image *disk)
+int raw_image__close(struct disk_image *disk)
{
int ret = 0;
return ret;
}
-static struct disk_image_operations raw_image_ops = {
+/*
+ * multiple buffer based disk image operations
+ */
+static struct disk_image_operations raw_image_iov_ops = {
.read_sector_iov = raw_image__read_sector_iov,
.write_sector_iov = raw_image__write_sector_iov,
};
-static struct disk_image_operations raw_image_ro_mmap_ops = {
- .read_sector = raw_image__read_sector_ro_mmap,
- .write_sector = raw_image__write_sector_ro_mmap,
- .close = raw_image__close_ro_mmap,
+/*
+ * single buffer based disk image operations
+ */
+static struct disk_image_operations raw_image_ops = {
+ .read_sector = raw_image__read_sector,
+ .write_sector = raw_image__write_sector,
+ .close = raw_image__close,
};
struct disk_image *raw_image__probe(int fd, struct stat *st, bool readonly)
* Use mmap's MAP_PRIVATE to implement non-persistent write
* FIXME: This does not work on 32-bit host.
*/
- return disk_image__new(fd, st->st_size, &raw_image_ro_mmap_ops, DISK_IMAGE_MMAP);
+ return disk_image__new(fd, st->st_size, &raw_image_ops, DISK_IMAGE_MMAP);
else
/*
* Use read/write instead of mmap
*/
- return disk_image__new(fd, st->st_size, &raw_image_ops, DISK_IMAGE_NOMMAP);
+ return disk_image__new(fd, st->st_size, &raw_image_iov_ops, DISK_IMAGE_NOMMAP);
}
ssize_t raw_image__read_sector_iov(struct disk_image *disk, u64 sector, const struct iovec *iov, int iovcount);
ssize_t raw_image__write_sector_iov(struct disk_image *disk, u64 sector, const struct iovec *iov, int iovcount);
-ssize_t raw_image__read_sector_ro_mmap(struct disk_image *disk, u64 sector, void *dst, u32 dst_len);
-ssize_t raw_image__write_sector_ro_mmap(struct disk_image *disk, u64 sector, void *src, u32 src_len);
-int raw_image__close_ro_mmap(struct disk_image *disk);
+ssize_t raw_image__read_sector(struct disk_image *disk, u64 sector, void *dst, u32 dst_len);
+ssize_t raw_image__write_sector(struct disk_image *disk, u64 sector, void *src, u32 src_len);
+int raw_image__close(struct disk_image *disk);
#endif /* KVM__DISK_IMAGE_H */