Hello ppl,
How can i create a subdirectory using the parent directory's dentry
object ?
I followed this approach, which did not work.
struct qstr name;
char *tmp;
struct dentry *dentry;
tmp = (char *) kmalloc(6,GFP_KERNEL);
strcpy(tmp,"HELLO");
name.name = tmp;
name.len=5;
dentry = d_alloc(parent_dentry,&name);
vfs_mkdir(parent_dentry->d_inode,dentry,493);
This code does not cause any OOPS. but, the new directory simply fails
to show up. What is wrong in my approach here ?
One more thing. I noticed that there is a field called hash in struct
qstr. I guessed that the d_hash method of the dentry_operations need to
be used. But when i tried using it, it gave me segfault, as the d_op
field of the dentry was NULL. Won't VFS provide a default hash function in
case the file system does not proivde one ?
Thank you.
--
regards,
balaji rao
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