Hello,
This patch changes the dir_item structure to handle xattrs, as well as make
print-tree spit out info about xattrs it finds. Thank you,
Josef
diff -r f4810b8d5822 ctree.h
--- a/ctree.h Wed Aug 29 15:56:44 2007 -0400
+++ b/ctree.h Fri Oct 12 22:33:06 2007 -0500
@@ -52,6 +52,7 @@ struct btrfs_trans_handle;
#define BTRFS_FT_SOCK 6
#define BTRFS_FT_SYMLINK 7
#define BTRFS_FT_MAX 8
+#define BTRFS_FT_XATTR 9
/*
* the key defines the order in the tree, and so it also defines (optimal)
@@ -211,7 +212,7 @@ struct btrfs_inline_data_item {
struct btrfs_dir_item {
struct btrfs_disk_key location;
- __le16 flags;
+ __le16 data_len;
__le16 name_len;
u8 type;
} __attribute__ ((__packed__));
@@ -322,8 +323,9 @@ struct btrfs_root {
* the FS
*/
#define BTRFS_INODE_ITEM_KEY 1
-
-/* reserve 2-15 close to the inode for later flexibility */
+#define BTRFS_XATTR_ITEM_KEY 2
+
+/* reserve 3-15 close to the inode for later flexibility */
/*
* dir items are the name -> inode pointers in a directory. There is one
@@ -570,16 +572,6 @@ static inline void btrfs_set_item_size(s
item->size = cpu_to_le16(val);
}
-static inline u16 btrfs_dir_flags(struct btrfs_dir_item *d)
-{
- return le16_to_cpu(d->flags);
-}
-
-static inline void btrfs_set_dir_flags(struct btrfs_dir_item *d, u16 val)
-{
- d->flags = cpu_to_le16(val);
-}
-
static inline u8 btrfs_dir_type(struct btrfs_dir_item *d)
{
return d->type;
@@ -598,6 +590,16 @@ static inline void btrfs_set_dir_name_le
static inline void btrfs_set_dir_name_len(struct btrfs_dir_item *d, u16 val)
{
d->name_len = cpu_to_le16(val);
+}
+
+static inline u16 btrfs_dir_data_len(struct btrfs_dir_item *d)
+{
+ return le16_to_cpu(d->data_len);
+}
+
+static inline void btrfs_set_dir_data_len(struct btrfs_dir_item *d, u16 val)
+{
+ d->data_len = cpu_to_le16(val);
}
static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
diff -r f4810b8d5822 dir-item.c
--- a/dir-item.c Wed Aug 29 15:56:44 2007 -0400
+++ b/dir-item.c Thu Nov 08 04:01:38 2007 -0500
@@ -83,8 +83,8 @@ int btrfs_insert_dir_item(struct btrfs_t
}
btrfs_cpu_key_to_disk(&dir_item->location, location);
btrfs_set_dir_type(dir_item, type);
- btrfs_set_dir_flags(dir_item, 0);
btrfs_set_dir_name_len(dir_item, name_len);
+ btrfs_set_dir_data_len(dir_item, 0);
name_ptr = (char *)(dir_item + 1);
memcpy(name_ptr, name, name_len);
@@ -102,8 +102,8 @@ int btrfs_insert_dir_item(struct btrfs_t
}
btrfs_cpu_key_to_disk(&dir_item->location, location);
btrfs_set_dir_type(dir_item, type);
- btrfs_set_dir_flags(dir_item, 0);
btrfs_set_dir_name_len(dir_item, name_len);
+ btrfs_set_dir_data_len(dir_item, 0);
name_ptr = (char *)(dir_item + 1);
memcpy(name_ptr, name, name_len);
out:
diff -r f4810b8d5822 print-tree.c
--- a/print-tree.c Wed Aug 29 15:56:44 2007 -0400
+++ b/print-tree.c Fri Oct 12 22:53:51 2007 -0500
@@ -31,13 +31,12 @@ static int print_dir_item(struct btrfs_i
u32 len;
total = btrfs_item_size(item);
while(cur < total) {
- printf("\t\tdir index %llu flags %u type %u\n",
+ printf("\t\tdir index %llu type %u\n",
(unsigned long long)btrfs_disk_key_objectid(&di->location),
- btrfs_dir_flags(di),
btrfs_dir_type(di));
- printf("\t\tname %.*s\n",
+ printf("\t\tname: %.*s\n",
btrfs_dir_name_len(di),(char *)(di + 1));
- len = sizeof(*di) + btrfs_dir_name_len(di);
+ len = sizeof(*di) + btrfs_dir_name_len(di) +
btrfs_dir_data_len(di);
di = (struct btrfs_dir_item *)((char *)di + len);
cur += len;
}
@@ -87,6 +86,10 @@ void btrfs_print_leaf(struct btrfs_root
print_dir_item(l->items + i, di);
break;
case BTRFS_DIR_INDEX_KEY:
+ di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
+ print_dir_item(l->items + i, di);
+ break;
+ case BTRFS_XATTR_ITEM_KEY:
di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
print_dir_item(l->items + i, di);
break;
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