22 	__acquires(pcb->lock)  in erofs_get_pcpubuf()
24 	struct erofs_pcpubuf *pcb = &get_cpu_var(erofs_pcb);  in erofs_get_pcpubuf()  local
26 	raw_spin_lock(&pcb->lock);  in erofs_get_pcpubuf()
28 	if (requiredpages > pcb->nrpages) {  in erofs_get_pcpubuf()
29 		raw_spin_unlock(&pcb->lock);  in erofs_get_pcpubuf()
31 		/* (for sparse checker) pretend pcb->lock is still taken */  in erofs_get_pcpubuf()
32 		__acquire(pcb->lock);  in erofs_get_pcpubuf()
35 	return pcb->ptr;  in erofs_get_pcpubuf()
38 void erofs_put_pcpubuf(void *ptr) __releases(pcb->lock)  in erofs_put_pcpubuf()
40 	struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, smp_processor_id());  in erofs_put_pcpubuf()  local
42 	DBG_BUGON(pcb->ptr != ptr);  in erofs_put_pcpubuf()
43 	raw_spin_unlock(&pcb->lock);  in erofs_put_pcpubuf()
63 		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);  in erofs_pcpubuf_growsize()  local
87 		raw_spin_lock(&pcb->lock);  in erofs_pcpubuf_growsize()
88 		old_ptr = pcb->ptr;  in erofs_pcpubuf_growsize()
89 		pcb->ptr = ptr;  in erofs_pcpubuf_growsize()
90 		oldpages = pcb->pages;  in erofs_pcpubuf_growsize()
91 		pcb->pages = pages;  in erofs_pcpubuf_growsize()
92 		i = pcb->nrpages;  in erofs_pcpubuf_growsize()
93 		pcb->nrpages = nrpages;  in erofs_pcpubuf_growsize()
94 		raw_spin_unlock(&pcb->lock);  in erofs_pcpubuf_growsize()
122 		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);  in erofs_pcpubuf_init()  local
124 		raw_spin_lock_init(&pcb->lock);  in erofs_pcpubuf_init()
133 		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);  in erofs_pcpubuf_exit()  local
135 		if (pcb->ptr) {  in erofs_pcpubuf_exit()
136 			vunmap(pcb->ptr);  in erofs_pcpubuf_exit()
137 			pcb->ptr = NULL;  in erofs_pcpubuf_exit()
139 		if (!pcb->pages)  in erofs_pcpubuf_exit()
142 		for (i = 0; i < pcb->nrpages; ++i)  in erofs_pcpubuf_exit()
143 			if (pcb->pages[i])  in erofs_pcpubuf_exit()
144 				put_page(pcb->pages[i]);  in erofs_pcpubuf_exit()
145 		kfree(pcb->pages);  in erofs_pcpubuf_exit()
146 		pcb->pages = NULL;  in erofs_pcpubuf_exit()