buckets.h (1f2f92ec3f2e5802c2870d0d34ccfa66ae9216ad) buckets.h (3858aa4268b2f71827097f548879e4405b4cc995)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Code for manipulating bucket marks for garbage collection.
4 *
5 * Copyright 2014 Datera, Inc.
6 */
7
8#ifndef _BUCKETS_H

--- 156 unchanged lines hidden (view full) ---

165
166static inline int gen_after(u8 a, u8 b)
167{
168 int r = gen_cmp(a, b);
169
170 return r > 0 ? r : 0;
171}
172
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Code for manipulating bucket marks for garbage collection.
4 *
5 * Copyright 2014 Datera, Inc.
6 */
7
8#ifndef _BUCKETS_H

--- 156 unchanged lines hidden (view full) ---

165
166static inline int gen_after(u8 a, u8 b)
167{
168 int r = gen_cmp(a, b);
169
170 return r > 0 ? r : 0;
171}
172
173static inline u8 dev_ptr_stale_rcu(struct bch_dev *ca, const struct bch_extent_ptr *ptr)
174{
175 return gen_after(*bucket_gen(ca, PTR_BUCKET_NR(ca, ptr)), ptr->gen);
176}
177
173/**
178/**
174 * ptr_stale() - check if a pointer points into a bucket that has been
179 * dev_ptr_stale() - check if a pointer points into a bucket that has been
175 * invalidated.
176 */
180 * invalidated.
181 */
177static inline u8 ptr_stale(struct bch_dev *ca,
178 const struct bch_extent_ptr *ptr)
182static inline u8 dev_ptr_stale(struct bch_dev *ca, const struct bch_extent_ptr *ptr)
179{
183{
180 u8 ret;
181
182 rcu_read_lock();
184 rcu_read_lock();
183 ret = gen_after(*bucket_gen(ca, PTR_BUCKET_NR(ca, ptr)), ptr->gen);
185 u8 ret = dev_ptr_stale_rcu(ca, ptr);
184 rcu_read_unlock();
185
186 return ret;
187}
188
189/* Device usage: */
190
191void bch2_dev_usage_read_fast(struct bch_dev *, struct bch_dev_usage *);

--- 282 unchanged lines hidden --- 		186 rcu_read_unlock();
187
188 return ret;
189}
190
191/* Device usage: */
192
193void bch2_dev_usage_read_fast(struct bch_dev *, struct bch_dev_usage *);

--- 282 unchanged lines hidden ---