f2fs: replace si->sbi w/ sbi in stat_show()

For each loop add a local f2fs_sb_info pointer insted of looking it up.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/debug.c

@@ -373,16 +373,18 @@ static int stat_show(struct seq_file *s, void *v)
 
 	raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
 	list_for_each_entry(si, &f2fs_stat_list, stat_list) {
-		update_general_status(si->sbi);
+		struct f2fs_sb_info *sbi = si->sbi;
+
+		update_general_status(sbi);
 
 		seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
-			si->sbi->sb->s_bdev, i++,
-			f2fs_readonly(si->sbi->sb) ? "RO" : "RW",
-			is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
-			"Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good"));
-		if (si->sbi->s_flag) {
+			sbi->sb->s_bdev, i++,
+			f2fs_readonly(sbi->sb) ? "RO" : "RW",
+			is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ?
+			"Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good"));
+		if (sbi->s_flag) {
 			seq_puts(s, "[SBI:");
-			for_each_set_bit(j, &si->sbi->s_flag, 32)
+			for_each_set_bit(j, &sbi->s_flag, 32)
 				seq_puts(s, s_flag[j]);
 			seq_puts(s, "]\n");
 		}
@@ -394,21 +396,21 @@ static int stat_show(struct seq_file *s, void *v)
 			   si->overp_segs, si->rsvd_segs);
 		seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
 					ktime_get_boottime_seconds(),
-					SIT_I(si->sbi)->mounted_time);
+					SIT_I(sbi)->mounted_time);
 
 		seq_puts(s, "Policy:\n");
 		seq_puts(s, "  - IPU: [");
-		if (IS_F2FS_IPU_DISABLE(si->sbi)) {
+		if (IS_F2FS_IPU_DISABLE(sbi)) {
 			seq_puts(s, " DISABLE");
 		} else {
-			unsigned long policy = SM_I(si->sbi)->ipu_policy;
+			unsigned long policy = SM_I(sbi)->ipu_policy;
 
 			for_each_set_bit(j, &policy, F2FS_IPU_MAX)
 				seq_printf(s, " %s", ipu_mode_names[j]);
 		}
 		seq_puts(s, " ]\n\n");
 
-		if (test_opt(si->sbi, DISCARD))
+		if (test_opt(sbi, DISCARD))
 			seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
 				si->utilization, si->valid_count, si->discard_blks);
 		else
@@ -515,15 +517,15 @@ static int stat_show(struct seq_file *s, void *v)
 		seq_printf(s, "  - node segments : %d (%d)\n",
 				si->node_segs, si->bg_node_segs);
 		seq_puts(s, "  - Reclaimed segs :\n");
-		seq_printf(s, "    - Normal : %d\n", si->sbi->gc_reclaimed_segs[GC_NORMAL]);
-		seq_printf(s, "    - Idle CB : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_CB]);
+		seq_printf(s, "    - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]);
+		seq_printf(s, "    - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]);
 		seq_printf(s, "    - Idle Greedy : %d\n",
-				si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
-		seq_printf(s, "    - Idle AT : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_AT]);
+				sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
+		seq_printf(s, "    - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]);
 		seq_printf(s, "    - Urgent High : %d\n",
-				si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
-		seq_printf(s, "    - Urgent Mid : %d\n", si->sbi->gc_reclaimed_segs[GC_URGENT_MID]);
-		seq_printf(s, "    - Urgent Low : %d\n", si->sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
+				sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
+		seq_printf(s, "    - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]);
+		seq_printf(s, "    - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
 		seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
 				si->bg_data_blks + si->bg_node_blks);
 		seq_printf(s, "  - data blocks : %d (%d)\n", si->data_blks,
@@ -589,7 +591,7 @@ static int stat_show(struct seq_file *s, void *v)
 			   si->ndirty_imeta);
 		seq_printf(s, "  - fsync mark: %4lld\n",
 			   percpu_counter_sum_positive(
-					&si->sbi->rf_node_block_count));
+					&sbi->rf_node_block_count));
 		seq_printf(s, "  - NATs: %9d/%9d\n  - SITs: %9d/%9d\n",
 			   si->dirty_nats, si->nats, si->dirty_sits, si->sits);
 		seq_printf(s, "  - free_nids: %9d/%9d\n  - alloc_nids: %9d\n",
@@ -616,12 +618,12 @@ static int stat_show(struct seq_file *s, void *v)
 			   si->block_count[LFS], si->segment_count[LFS]);
 
 		/* segment usage info */
-		f2fs_update_sit_info(si->sbi);
+		f2fs_update_sit_info(sbi);
 		seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
 			   si->bimodal, si->avg_vblocks);
 
 		/* memory footprint */
-		update_mem_info(si->sbi);
+		update_mem_info(sbi);
 		seq_printf(s, "\nMemory: %llu KB\n",
 			(si->base_mem + si->cache_mem + si->page_mem) >> 10);
 		seq_printf(s, "  - static: %llu KB\n",