1 files changed, 41 insertions, 5 deletions

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 5877bd729689..b3d399623290 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -54,7 +54,7 @@ static int gc_thread_func(void *data)
 		}
 
 		if (time_to_inject(sbi, FAULT_CHECKPOINT)) {
-			f2fs_show_injection_info(FAULT_CHECKPOINT);
+			f2fs_show_injection_info(sbi, FAULT_CHECKPOINT);
 			f2fs_stop_checkpoint(sbi, false);
 		}
 
@@ -1012,8 +1012,14 @@ next_step:
 		block_t start_bidx;
 		nid_t nid = le32_to_cpu(entry->nid);
 
-		/* stop BG_GC if there is not enough free sections. */
-		if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0))
+		/*
+		 * stop BG_GC if there is not enough free sections.
+		 * Or, stop GC if the segment becomes fully valid caused by
+		 * race condition along with SSR block allocation.
+		 */
+		if ((gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0)) ||
+				get_valid_blocks(sbi, segno, false) ==
+							sbi->blocks_per_seg)
 			return submitted;
 
 		if (check_valid_map(sbi, segno, off) == 0)
@@ -1437,11 +1443,20 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
 	raw_sb->segment_count_main = cpu_to_le32(segment_count_main + segs);
 	raw_sb->block_count = cpu_to_le64(block_count +
 					(long long)segs * sbi->blocks_per_seg);
+	if (f2fs_is_multi_device(sbi)) {
+		int last_dev = sbi->s_ndevs - 1;
+		int dev_segs =
+			le32_to_cpu(raw_sb->devs[last_dev].total_segments);
+
+		raw_sb->devs[last_dev].total_segments =
+						cpu_to_le32(dev_segs + segs);
+	}
 }
 
 static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
 {
 	int segs = secs * sbi->segs_per_sec;
+	long long blks = (long long)segs * sbi->blocks_per_seg;
 	long long user_block_count =
 				le64_to_cpu(F2FS_CKPT(sbi)->user_block_count);
 
@@ -1449,8 +1464,20 @@ static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
 	MAIN_SEGS(sbi) = (int)MAIN_SEGS(sbi) + segs;
 	FREE_I(sbi)->free_sections = (int)FREE_I(sbi)->free_sections + secs;
 	FREE_I(sbi)->free_segments = (int)FREE_I(sbi)->free_segments + segs;
-	F2FS_CKPT(sbi)->user_block_count = cpu_to_le64(user_block_count +
-					(long long)segs * sbi->blocks_per_seg);
+	F2FS_CKPT(sbi)->user_block_count = cpu_to_le64(user_block_count + blks);
+
+	if (f2fs_is_multi_device(sbi)) {
+		int last_dev = sbi->s_ndevs - 1;
+
+		FDEV(last_dev).total_segments =
+				(int)FDEV(last_dev).total_segments + segs;
+		FDEV(last_dev).end_blk =
+				(long long)FDEV(last_dev).end_blk + blks;
+#ifdef CONFIG_BLK_DEV_ZONED
+		FDEV(last_dev).nr_blkz = (int)FDEV(last_dev).nr_blkz +
+					(int)(blks >> sbi->log_blocks_per_blkz);
+#endif
+	}
 }
 
 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
@@ -1465,6 +1492,15 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 	if (block_count > old_block_count)
 		return -EINVAL;
 
+	if (f2fs_is_multi_device(sbi)) {
+		int last_dev = sbi->s_ndevs - 1;
+		__u64 last_segs = FDEV(last_dev).total_segments;
+
+		if (block_count + last_segs * sbi->blocks_per_seg <=
+								old_block_count)
+			return -EINVAL;
+	}
+
 	/* new fs size should align to section size */
 	div_u64_rem(block_count, BLKS_PER_SEC(sbi), &rem);
 	if (rem)