kern_path_locked

Name:does lookup, returns the object with parent locked

Proto:struct dentry *kern_path_locked(const char *name, struct path *path)

Type:struct dentry

Parameter:

Type	Parameter	Name
const char *	name
struct path *	path

2400

filename = filename_parentat(Special value used to indicateopenat should use the currentworking directory. , getname_kernel(name), 0, path, & last, & type)

2402

If IS_ERR(filename) Then Return ERR_CAST - Explicitly cast an error-valued pointer to another pointer type*@ptr: The pointer to cast.* Explicitly cast an error-valued pointer to another pointer type in such a* way as to make it clear that's what's going on.

2404

If Value for the false possibility is greater at compile time(type != LAST_NORM) Then

2405

path_put - put a reference to a path*@path: path to put the reference to* Given a path decrement the reference count to the dentry and the vfsmount.

2406

putname(filename)

2407

Return ERR_PTR( - EINVAL)

2409

inode_lock_nested( Where the name belongs to - NULL is * negative , I_MUTEX_PARENT)

2410

d = Parent directory has inode locked exclusive. This is one* and only case when ->lookup() gets called on non in-lookup* dentries - as the matter of fact, this only gets called* when directory is guaranteed to have no in-lookup children* at all.

2411

If IS_ERR(d) Then

2412

inode_unlock( Where the name belongs to - NULL is * negative )

2413

path_put - put a reference to a path*@path: path to put the reference to* Given a path decrement the reference count to the dentry and the vfsmount.

2415

putname(filename)

2416

Return d

**Caller**
Name	Describe
audit_alloc_mark

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