Function report |
Source Code:kernel\rcu\tree_exp.h |
Create Date:2022-07-28 10:28:24 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Funnel-lock acquisition for expedited grace periods
Proto:static bool exp_funnel_lock(unsigned long s)
Type:bool
Parameter:
Type | Parameter | Name |
---|---|---|
unsigned long | s |
277 | rdp = per_cpu_ptr( & rcu_data, These macros fold the SMP functionality into a single CPU system()) |
296 | If Common code for work-done checking. Then Return true |
301 | If ULONG_CMP_GE(exp_seq_rq, s) Then |
304 | spin_unlock( & exp_lock) |
310 | Return true |
312 | exp_seq_rq = s |
313 | spin_unlock( & exp_lock) |
317 | mutex_lock( & Serialize expedited GP. ) |
318 | fastpath : |
319 | If Common code for work-done checking. Then |
325 | Return false |
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