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Adds tracking of hardlinks when reading a directory.

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This commit is contained in:
Bahadir Balban
2008-02-16 12:36:50 +00:00
parent 09bd001e1a
commit 08b1e0e42c
4 changed files with 17 additions and 14 deletions
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19
tasks/fs0/src/memfs/vnode.c
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@@ -334,15 +334,26 @@ int memfs_vnode_readdir(struct vnode *v)
list_add(&newd->child, &parent->children);
/*
* Read the vnode for dentry by its vnode number.
* Lookup the vnode for dentry by its vnode number. We call
* vnode_lookup_byvnum instead of directly reading it because
* this dentry might just be a link to a vnode that's already
* in the vnode cache. If it's not there, the lookup function
* allocates and reads it for us as well.
*/
newv = newd->vnode = vfs_alloc_vnode();
newv->vnum = memfsd[i].inum;
BUG_ON(newv->sb->ops->read_vnode(newv->sb, newv) < 0);
newv = newd->vnode = vfs_lookup_byvnum(v->sb, memfsd[i].inum);
if (!newv) {
printf("Filesystem seems to be broken. Directory has"
"inode number: %d, but no such inode found.\n",
memfsd[i].inum);
BUG();
}
/* Assing this dentry as a name of its vnode */
list_add(&newd->vref, &newd->vnode->dentries);
/* Increase link count */
newv->links++;
/* Copy fields into generic dentry */
memcpy(newd->name, memfsd[i].name, MEMFS_DNAME_MAX);