f2fs: use kfree() instead of kvfree() to free some memory

options in f2fs_fill_super is alloc by kstrdup:
	options = kstrdup((const char *)data, GFP_KERNEL)
sit_bitmap[_mir], nat_bitmap[_mir] are alloc by kmemdup:
	sit_i->sit_bitmap = kmemdup(src_bitmap, sit_bitmap_size, GFP_KERNEL);
	sit_i->sit_bitmap_mir = kmemdup(src_bitmap,
					sit_bitmap_size, GFP_KERNEL);
	nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size,
					GFP_KERNEL);
	nm_i->nat_bitmap_mir = kmemdup(version_bitmap, nm_i->bitmap_size,
					GFP_KERNEL);
write_io is alloc by f2fs_kmalloc:
	sbi->write_io[i] = f2fs_kmalloc(sbi,
			array_size(n, sizeof(struct f2fs_bio_info))

Use kfree is more efficient.

Signed-off-by: Jiazi Li <[email protected]>
Signed-off-by: peixuan.qiu <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>

Author: Jiazi Li

fs/f2fs/node.c

@@ -3408,10 +3408,10 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
 	}
 	kvfree(nm_i->free_nid_count);
 
-	kvfree(nm_i->nat_bitmap);
+	kfree(nm_i->nat_bitmap);
 	kvfree(nm_i->nat_bits);
 #ifdef CONFIG_F2FS_CHECK_FS
-	kvfree(nm_i->nat_bitmap_mir);
+	kfree(nm_i->nat_bitmap_mir);
 #endif
 	sbi->nm_info = NULL;
 	kfree(nm_i);

fs/f2fs/segment.c

@@ -5813,9 +5813,9 @@ static void destroy_sit_info(struct f2fs_sb_info *sbi)
 	kvfree(sit_i->dirty_sentries_bitmap);
 
 	SM_I(sbi)->sit_info = NULL;
-	kvfree(sit_i->sit_bitmap);
+	kfree(sit_i->sit_bitmap);
 #ifdef CONFIG_F2FS_CHECK_FS
-	kvfree(sit_i->sit_bitmap_mir);
+	kfree(sit_i->sit_bitmap_mir);
 	kvfree(sit_i->invalid_segmap);
 #endif
 	kfree(sit_i);

fs/f2fs/super.c

@@ -1718,7 +1718,7 @@ static void f2fs_put_super(struct super_block *sb)
 	destroy_percpu_info(sbi);
 	f2fs_destroy_iostat(sbi);
 	for (i = 0; i < NR_PAGE_TYPE; i++)
-		kvfree(sbi->write_io[i]);
+		kfree(sbi->write_io[i]);
 #if IS_ENABLED(CONFIG_UNICODE)
 	utf8_unload(sb->s_encoding);
 #endif
@@ -4935,7 +4935,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		if (err)
 			goto sync_free_meta;
 	}
-	kvfree(options);
+	kfree(options);
 
 	/* recover broken superblock */
 	if (recovery) {
@@ -5018,7 +5018,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	f2fs_destroy_iostat(sbi);
 free_bio_info:
 	for (i = 0; i < NR_PAGE_TYPE; i++)
-		kvfree(sbi->write_io[i]);
+		kfree(sbi->write_io[i]);
 
 #if IS_ENABLED(CONFIG_UNICODE)
 	utf8_unload(sb->s_encoding);
@@ -5030,7 +5030,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		kfree(F2FS_OPTION(sbi).s_qf_names[i]);
 #endif
 	fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
-	kvfree(options);
+	kfree(options);
 free_sb_buf:
 	kfree(raw_super);
 free_sbi: