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fs: return device filesystem is mounted on

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Matheus
2024-06-16 12:32:32 -03:00
parent a524d9b48b
commit 5b6d15a06c
5 changed files with 23 additions and 4 deletions
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kernel-src/fs/ext2.c
+13 -1
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@@ -142,6 +142,8 @@ typedef struct {
vfs_t vfs;
ext2superblock_t superblock;
vnode_t *backing;
int backingmajor;
int backingminor;
size_t blocksize;
size_t bgcount;
ext2node_t *root;
@@ -1043,6 +1045,8 @@ static int ext2_getattr(vnode_t *vnode, vattr_t *attr, cred_t *cred) {
attr->rdevmajor = 0;
attr->rdevminor = 0;
attr->devmajor = ((ext2fs_t *)vnode->vfs)->backingmajor;
attr->devminor = ((ext2fs_t *)vnode->vfs)->backingminor;
attr->uid = node->inode.uid;
attr->gid = node->inode.gid;
attr->inode = node->id;
@@ -1748,10 +1752,18 @@ static int ext2_mount(vfs_t **vfs, vnode_t *mountpoint, vnode_t *backing, void *
MUTEX_INIT(&fs->inodewritelock);
MUTEX_INIT(&fs->descriptorlock);
vattr_t vattr;
int err = VOP_GETATTR(backing, &vattr, NULL);
if (err)
goto cleanup;
fs->backingmajor = vattr.rdevmajor;
fs->backingminor = vattr.rdevminor;
// read superblock
size_t readcount;
int err = vfs_read(backing, &fs->superblock, sizeof(ext2superblock_t), SUPERBLOCK_OFFSET, &readcount, 0);
err = vfs_read(backing, &fs->superblock, sizeof(ext2superblock_t), SUPERBLOCK_OFFSET, &readcount, 0);
if (err)
goto cleanup;