exit_robust

Name:Walk curr->robust_list (very carefully, it's a userspace list!)* and mark any locks found there dead, and notify any waiters.* We silently return on any sign of list-walking problem.

Proto:static void exit_robust_list(struct task_struct *curr)

Type:void

Parameter:

Type	Parameter	Name
struct task_struct *	curr

3680

__user * head = robust_list

3681

__user * entry

3682

limit = This limit protects against a deliberately circular list.* (Not worth introducing an rlimit for it)

3683

next_pi = next_pi

3687

If Not futex_cmpxchg_enabled Then Return

3694

If Fetch a robust-list pointer. Bit 0 signals PI futexes: Then Return

3699

If Get a simple variable from user space(futex_offset, & This relative offset is set by user-space, it gives the kernel* the relative position of the futex field to examine. This way* we keep userspace flexible, to freely shape its data-structure,* without hardcoding any particular offset into the kernel:) Then Return

3705

If Fetch a robust-list pointer. Bit 0 signals PI futexes: Then Return

3708

next_entry = NULL

3709

When entry != The head of the list. Points back to itself if empty: cycle

3714

rc = Fetch a robust-list pointer. Bit 0 signals PI futexes:

3719

If entry != pending Then

3720

If Process a futex-list entry, check whether it's owned by the* dying task, and do notification if so: Then Return

3724

If rc Then Return

3726

entry = next_entry

3727

pi = next_pi

3731

If Not --limit Then Break

3734

cond_resched()

3737

If pending Then

3738

Process a futex-list entry, check whether it's owned by the* dying task, and do notification if so:

**Caller**
Name	Describe
futex_cleanup

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