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XDRV_READ reading in sectors

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This commit is contained in:
Kamil Kowalczyk
2026-02-22 18:58:28 +01:00
parent 9ddde68449
commit 8fc5418915
4 changed files with 35 additions and 27 deletions
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17
kernel/fs/tarfs.c
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@@ -66,7 +66,7 @@ int tarfs_mount (struct vfs_mountpoint* mountpoint, struct proc* proc,
mountpoint->udata = tarfs;
struct device* back_device = mountpoint->back_device;
size_t total_size;
size_t total_size, sector_size;
int ret;
spin_lock (&back_device->lock);
@@ -78,6 +78,14 @@ int tarfs_mount (struct vfs_mountpoint* mountpoint, struct proc* proc,
return ret;
}
ret = back_device->ops[XDRV_GET_SECTOR_SIZE](back_device, proc, rctx, &sector_size, NULL, NULL,
NULL);
if (ret < 0) {
spin_unlock (&back_device->lock);
free (mountpoint->udata);
return ret;
}
uint8_t* buffer = malloc (total_size);
if (buffer == NULL) {
@@ -86,8 +94,11 @@ int tarfs_mount (struct vfs_mountpoint* mountpoint, struct proc* proc,
return ret;
}
size_t pos = 0;
ret = back_device->ops[XDRV_READ](back_device, proc, rctx, &pos, &total_size, buffer, NULL);
size_t off = 0;
for (size_t sector = 0; sector < total_size / sector_size; sector++) {
uint8_t* dest = (uint8_t*)((uintptr_t)buffer + (sector * sector_size));
ret = back_device->ops[XDRV_READ](back_device, proc, rctx, &sector, &off, &sector_size, dest);
}
spin_unlock (&back_device->lock);