btrfs-progs: lowmem check: Output more detailed information about file extent interrupt

[platform/upstream/btrfs-progs.git] / print-tree.c

diff --git a/print-tree.c b/print-tree.c
index e53b9aa..3c585e3 100644 (file)
--- a/print-tree.c
+++ b/print-tree.c
@@ -198,9 +198,17 @@ void print_chunk_item(struct extent_buffer *eb, struct btrfs_chunk *chunk)
 {
        u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
        int i;
-       u32 chunk_item_size = btrfs_chunk_item_size(num_stripes);
+       u32 chunk_item_size;
        char chunk_flags_str[32] = {0};
 
+       /* The chunk must contain at least one stripe */
+       if (num_stripes < 1) {
+               printf("invalid num_stripes: %u\n", num_stripes);
+               return;
+       }
+
+       chunk_item_size = btrfs_chunk_item_size(num_stripes);
+
        if ((unsigned long)chunk + chunk_item_size > eb->len) {
                printf("\t\tchunk item invalid\n");
                return;
@@ -315,6 +323,9 @@ static void compress_type_to_str(u8 compress_type, char *ret)
        case BTRFS_COMPRESS_LZO:
                strcpy(ret, "lzo");
                break;
+       case BTRFS_COMPRESS_ZSTD:
+               strcpy(ret, "zstd");
+               break;
        default:
                sprintf(ret, "UNKNOWN.%d", compress_type);
        }
@@ -1102,6 +1113,18 @@ static void print_temporary_item(struct extent_buffer *eb, void *ptr,
        }
 }
 
+static void print_extent_csum(struct extent_buffer *eb,
+               struct btrfs_fs_info *fs_info, u32 item_size, u64 start)
+{
+       u32 size;
+
+       size = (item_size / btrfs_super_csum_size(fs_info->super_copy)) *
+                       fs_info->sectorsize;
+       printf("\t\trange start %llu end %llu length %u\n",
+                       (unsigned long long)start,
+                       (unsigned long long)start + size, size);
+}
+
 /* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */
 static void header_flags_to_str(u64 flags, char *ret)
 {
@@ -1233,16 +1256,10 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb)
                case BTRFS_CSUM_ITEM_KEY:
                        printf("\t\tcsum item\n");
                        break;
-               case BTRFS_EXTENT_CSUM_KEY: {
-                       u16 csum_size =
-                               btrfs_super_csum_size(root->fs_info->super_copy);
-                       u32 size = (item_size / csum_size) *
-                               root->fs_info->sectorsize;
-                       printf("\t\textent csum item range %llu-%llu\n",
-                              (unsigned long long)disk_key.offset,
-                              (unsigned long long)disk_key.offset + size);
+               case BTRFS_EXTENT_CSUM_KEY:
+                       print_extent_csum(eb, root->fs_info, item_size,
+                                       offset);
                        break;
-                       }
                case BTRFS_EXTENT_DATA_KEY:
                        print_file_extent_item(eb, item, i, ptr);
                        break;