update_file_ctx

Name:update_file_ctx

Proto:static void update_file_ctx(struct aa_file_ctx *fctx, struct aa_label *label, unsigned int request)

Type:void

Parameter:

Type	Parameter	Name
struct aa_file_ctx *	fctx
struct aa_label *	label
unsigned int	request

501

spin_lock( & lock)

502

old = cu_dereference_protected() - fetch RCU pointer when updates prevented*@p: The pointer to read, prior to dereferencing*@c: The conditions under which the dereference will take place* Return the value of the specified RCU-protected pointer, but omit(label, lockdep_is_held( & lock))

504

l = aa_label_merge - attempt to insert new merged label of @a and @b*@ls: set of labels to insert label into (NOT NULL)*@a: label to merge with @b (NOT NULL)*@b: label to merge with @a (NOT NULL)*@gfp: memory allocation type* Requires: caller to hold valid

505

If l Then

506

If l != old Then

507

cu_assign_pointer() - assign to RCU-protected pointer*@p: pointer to assign to*@v: value to assign (publish)* Assigns the specified value to the specified RCU-protected* pointer, ensuring that any concurrent RCU readers will see* any prior initialization(label, l)

508

aa_put_label(old)

509

Else aa_put_label(l)

511

allow |= request

513

spin_unlock( & lock)

**Caller**
Name	Describe
__file_path_perm
__file_sock_perm

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