gc.c (274bd9ba39425610fdb9a6827602197a5cd27cd8) gc.c (4354994f097d068a894aa1a0860da54571df3582)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * fs/f2fs/gc.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
7 */
8#include <linux/fs.h>

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365 } else {
366 nsearched++;
367 }
368
369 secno = GET_SEC_FROM_SEG(sbi, segno);
370
371 if (sec_usage_check(sbi, secno))
372 goto next;
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * fs/f2fs/gc.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
7 */
8#include <linux/fs.h>

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365 } else {
366 nsearched++;
367 }
368
369 secno = GET_SEC_FROM_SEG(sbi, segno);
370
371 if (sec_usage_check(sbi, secno))
372 goto next;
373 /* Don't touch checkpointed data */
374 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
375 get_ckpt_valid_blocks(sbi, segno)))
376 goto next;
373 if (gc_type == BG_GC && test_bit(secno, dirty_i->victim_secmap))
374 goto next;
375
376 cost = get_gc_cost(sbi, segno, &p);
377
378 if (p.min_cost > cost) {
379 p.min_segno = segno;
380 p.min_cost = cost;

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1184 }
1185
1186 if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0)) {
1187 /*
1188 * For example, if there are many prefree_segments below given
1189 * threshold, we can make them free by checkpoint. Then, we
1190 * secure free segments which doesn't need fggc any more.
1191 */
377 if (gc_type == BG_GC && test_bit(secno, dirty_i->victim_secmap))
378 goto next;
379
380 cost = get_gc_cost(sbi, segno, &p);
381
382 if (p.min_cost > cost) {
383 p.min_segno = segno;
384 p.min_cost = cost;

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1188 }
1189
1190 if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0)) {
1191 /*
1192 * For example, if there are many prefree_segments below given
1193 * threshold, we can make them free by checkpoint. Then, we
1194 * secure free segments which doesn't need fggc any more.
1195 */
1192 if (prefree_segments(sbi)) {
1196 if (prefree_segments(sbi) &&
1197 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
1193 ret = f2fs_write_checkpoint(sbi, &cpc);
1194 if (ret)
1195 goto stop;
1196 }
1197 if (has_not_enough_free_secs(sbi, 0, 0))
1198 gc_type = FG_GC;
1199 }
1200

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1236
1237 if (first_skipped < last_skipped &&
1238 (last_skipped - first_skipped) >
1239 sbi->skipped_gc_rwsem) {
1240 f2fs_drop_inmem_pages_all(sbi, true);
1241 segno = NULL_SEGNO;
1242 goto gc_more;
1243 }
1198 ret = f2fs_write_checkpoint(sbi, &cpc);
1199 if (ret)
1200 goto stop;
1201 }
1202 if (has_not_enough_free_secs(sbi, 0, 0))
1203 gc_type = FG_GC;
1204 }
1205

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1241
1242 if (first_skipped < last_skipped &&
1243 (last_skipped - first_skipped) >
1244 sbi->skipped_gc_rwsem) {
1245 f2fs_drop_inmem_pages_all(sbi, true);
1246 segno = NULL_SEGNO;
1247 goto gc_more;
1248 }
1244 if (gc_type == FG_GC)
1249 if (gc_type == FG_GC && !is_sbi_flag_set(sbi, SBI_CP_DISABLED))
1245 ret = f2fs_write_checkpoint(sbi, &cpc);
1246 }
1247stop:
1248 SIT_I(sbi)->last_victim[ALLOC_NEXT] = 0;
1249 SIT_I(sbi)->last_victim[FLUSH_DEVICE] = init_segno;
1250
1251 trace_f2fs_gc_end(sbi->sb, ret, total_freed, sec_freed,
1252 get_pages(sbi, F2FS_DIRTY_NODES),

--- 27 unchanged lines hidden --- 		1250 ret = f2fs_write_checkpoint(sbi, &cpc);
1251 }
1252stop:
1253 SIT_I(sbi)->last_victim[ALLOC_NEXT] = 0;
1254 SIT_I(sbi)->last_victim[FLUSH_DEVICE] = init_segno;
1255
1256 trace_f2fs_gc_end(sbi->sb, ret, total_freed, sec_freed,
1257 get_pages(sbi, F2FS_DIRTY_NODES),

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