f2fs.h (279d6df20c94079d35e012f1602d40c42632e8f3) f2fs.h (c473f1a9658b6c23d576136d5a49b1c731ef1767)
1/*
2 * fs/f2fs/f2fs.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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120/*
121 * For checkpoint manager
122 */
123enum {
124 NAT_BITMAP,
125 SIT_BITMAP
126};
127
1/*
2 * fs/f2fs/f2fs.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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120/*
121 * For checkpoint manager
122 */
123enum {
124 NAT_BITMAP,
125 SIT_BITMAP
126};
127
128enum {
129 CP_UMOUNT,
130 CP_FASTBOOT,
131 CP_SYNC,
132 CP_RECOVERY,
133 CP_DISCARD,
134};
128#define CP_UMOUNT 0x00000001
129#define CP_FASTBOOT 0x00000002
130#define CP_SYNC 0x00000004
131#define CP_RECOVERY 0x00000008
132#define CP_DISCARD 0x00000010
135
136#define DEF_BATCHED_TRIM_SECTIONS 2048
137#define BATCHED_TRIM_SEGMENTS(sbi) \
138 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
139#define BATCHED_TRIM_BLOCKS(sbi) \
140 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
141#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
142#define DISCARD_ISSUE_RATE 8

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1260 spin_unlock(&sbi->cp_lock);
1261}
1262
1263static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1264 struct cp_control *cpc)
1265{
1266 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1267
133
134#define DEF_BATCHED_TRIM_SECTIONS 2048
135#define BATCHED_TRIM_SEGMENTS(sbi) \
136 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
137#define BATCHED_TRIM_BLOCKS(sbi) \
138 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
139#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
140#define DISCARD_ISSUE_RATE 8

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1258 spin_unlock(&sbi->cp_lock);
1259}
1260
1261static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1262 struct cp_control *cpc)
1263{
1264 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1265
1268 return (cpc) ? (cpc->reason == CP_UMOUNT) && set : set;
1266 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1269}
1270
1271static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1272{
1273 down_read(&sbi->cp_rwsem);
1274}
1275
1276static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)

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1296 reason = CP_FASTBOOT;
1297 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1298 reason = CP_UMOUNT;
1299 return reason;
1300}
1301
1302static inline bool __remain_node_summaries(int reason)
1303{
1267}
1268
1269static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1270{
1271 down_read(&sbi->cp_rwsem);
1272}
1273
1274static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)

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1294 reason = CP_FASTBOOT;
1295 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1296 reason = CP_UMOUNT;
1297 return reason;
1298}
1299
1300static inline bool __remain_node_summaries(int reason)
1301{
1304 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1302 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1305}
1306
1307static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1308{
1309 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1310 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1311}
1312

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1304
1305static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1306{
1307 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1308 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1309}
1310

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