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authorStefan Behrens <sbehrens@giantdisaster.de>2013-06-26 17:17:59 +0200
committerDavid Sterba <dsterba@suse.cz>2013-08-09 14:32:32 +0200
commit6634da9c9aecced7e799be79abf07fc3ac5170c8 (patch)
treeecd83bcce7c79b5427d3d7b909d0ba9602999e9a /btrfs-debug-tree.c
parent1ff26009b310cd26df3667b58b8fed27f7891669 (diff)
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Btrfs-progs: add option to btrfs-debug-tree to print uuid tree only
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'btrfs-debug-tree.c')
-rw-r--r--btrfs-debug-tree.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/btrfs-debug-tree.c b/btrfs-debug-tree.c
index 74d4d66..bdd4022 100644
--- a/btrfs-debug-tree.c
+++ b/btrfs-debug-tree.c
@@ -30,13 +30,14 @@
static int print_usage(void)
{
- fprintf(stderr, "usage: btrfs-debug-tree [ -e ] [ -d ] [ -r ] [ -R ]\n");
+ fprintf(stderr, "usage: btrfs-debug-tree [-e] [-d] [-r] [-R] [-u]\n");
fprintf(stderr, " [-b block_num ] device\n");
fprintf(stderr, "\t-e : print detailed extents info\n");
fprintf(stderr, "\t-d : print info of btrfs device and root tree dirs"
" only\n");
fprintf(stderr, "\t-r : print info of roots only\n");
fprintf(stderr, "\t-R : print info of roots and root backups\n");
+ fprintf(stderr, "\t-u : print info of uuid tree only\n");
fprintf(stderr, "\t-b block_num : print info of the specified block"
" only\n");
fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
@@ -129,6 +130,7 @@ int main(int ac, char **av)
int slot;
int extent_only = 0;
int device_only = 0;
+ int uuid_tree_only = 0;
int roots_only = 0;
int root_backups = 0;
u64 block_only = 0;
@@ -138,7 +140,7 @@ int main(int ac, char **av)
while(1) {
int c;
- c = getopt(ac, av, "deb:rR");
+ c = getopt(ac, av, "deb:rRu");
if (c < 0)
break;
switch(c) {
@@ -151,6 +153,9 @@ int main(int ac, char **av)
case 'r':
roots_only = 1;
break;
+ case 'u':
+ uuid_tree_only = 1;
+ break;
case 'R':
roots_only = 1;
root_backups = 1;
@@ -201,7 +206,7 @@ int main(int ac, char **av)
goto close_root;
}
- if (!extent_only) {
+ if (!(extent_only || uuid_tree_only)) {
if (roots_only) {
printf("root tree: %llu level %d\n",
(unsigned long long)info->tree_root->node->start,
@@ -250,7 +255,7 @@ again:
if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
unsigned long offset;
struct extent_buffer *buf;
- int skip = extent_only | device_only;
+ int skip = extent_only | device_only | uuid_tree_only;
offset = btrfs_item_ptr_offset(leaf, slot);
read_extent_buffer(leaf, &ri, offset, sizeof(ri));
@@ -268,9 +273,9 @@ again:
printf("root");
break;
case BTRFS_EXTENT_TREE_OBJECTID:
- if (!device_only)
+ if (!device_only && !uuid_tree_only)
skip = 0;
- if (!extent_only && !device_only)
+ if (!skip)
printf("extent");
break;
case BTRFS_CHUNK_TREE_OBJECTID:
@@ -279,8 +284,10 @@ again:
}
break;
case BTRFS_DEV_TREE_OBJECTID:
- skip = 0;
- printf("device");
+ if (!uuid_tree_only)
+ skip = 0;
+ if (!skip)
+ printf("device");
break;
case BTRFS_FS_TREE_OBJECTID:
if (!skip) {
@@ -331,6 +338,12 @@ again:
printf("quota");
}
break;
+ case BTRFS_UUID_TREE_OBJECTID:
+ if (!extent_only && !device_only)
+ skip = 0;
+ if (!skip)
+ printf("uuid");
+ break;
case BTRFS_MULTIPLE_OBJECTIDS:
if (!skip) {
printf("multiple");
@@ -369,7 +382,7 @@ no_node:
goto again;
}
- if (extent_only || device_only)
+ if (extent_only || device_only || uuid_tree_only)
goto close_root;
if (root_backups)