fixup_owner (9) Linux Manual Page
fixup_owner – Post lock pi_state and corner case management
Synopsis
int fixup_owner(u32 __user *uaddr, struct futex_q *q, int locked);Arguments
uaddr
-
- user address of the futex
q
- futex_q (contains pi_state and access to the rt_mutex)
locked
- if the attempt to take the rt_mutex succeeded (1) or not (0)
Description
After attempting to lock an rt_mutex, this function is called to cleanup the pi_state owner as well as handle race conditions that may allow us to acquire the lock. Must be called with the hb lock held.
Return
1 – success, lock taken; 0 – success, lock not taken; <0 – on error (-EFAULT)
Author
Rusty Russell <rusty [at] rustcorp.com.au>
- Author.