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Btrfs-progs: add option to btrfs-debug-tree to print uuid tree only

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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>
This commit is contained in:
Stefan Behrens 2013-06-26 17:17:59 +02:00 committed by David Sterba
parent 1ff26009b3
commit 6634da9c9a
1 changed files with 22 additions and 9 deletions
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27
btrfs-debug-tree.c
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@ -30,13 +30,14 @@
static int print_usage(void) 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, " [-b block_num ] device\n");
fprintf(stderr, "\t-e : print detailed extents info\n"); fprintf(stderr, "\t-e : print detailed extents info\n");
fprintf(stderr, "\t-d : print info of btrfs device and root tree dirs" fprintf(stderr, "\t-d : print info of btrfs device and root tree dirs"
" only\n"); " only\n");
fprintf(stderr, "\t-r : print info of roots 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-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" fprintf(stderr, "\t-b block_num : print info of the specified block"
" only\n"); " only\n");
fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION); fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
@ -129,6 +130,7 @@ int main(int ac, char **av)
int slot; int slot;
int extent_only = 0; int extent_only = 0;
int device_only = 0; int device_only = 0;
int uuid_tree_only = 0;
int roots_only = 0; int roots_only = 0;
int root_backups = 0; int root_backups = 0;
u64 block_only = 0; u64 block_only = 0;
@ -138,7 +140,7 @@ int main(int ac, char **av)
while(1) { while(1) {
int c; int c;
c = getopt(ac, av, "deb:rR"); c = getopt(ac, av, "deb:rRu");
if (c < 0) if (c < 0)
break; break;
switch(c) { switch(c) {
@ -151,6 +153,9 @@ int main(int ac, char **av)
case 'r': case 'r':
roots_only = 1; roots_only = 1;
break; break;
case 'u':
uuid_tree_only = 1;
break;
case 'R': case 'R':
roots_only = 1; roots_only = 1;
root_backups = 1; root_backups = 1;
@ -201,7 +206,7 @@ int main(int ac, char **av)
goto close_root; goto close_root;
} }
if (!extent_only) { if (!(extent_only || uuid_tree_only)) {
if (roots_only) { if (roots_only) {
printf("root tree: %llu level %d\n", printf("root tree: %llu level %d\n",
(unsigned long long)info->tree_root->node->start, (unsigned long long)info->tree_root->node->start,
@ -250,7 +255,7 @@ again:
if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) { if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
unsigned long offset; unsigned long offset;
struct extent_buffer *buf; 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); offset = btrfs_item_ptr_offset(leaf, slot);
read_extent_buffer(leaf, &ri, offset, sizeof(ri)); read_extent_buffer(leaf, &ri, offset, sizeof(ri));
@ -268,9 +273,9 @@ again:
printf("root"); printf("root");
break; break;
case BTRFS_EXTENT_TREE_OBJECTID: case BTRFS_EXTENT_TREE_OBJECTID:
if (!device_only) if (!device_only && !uuid_tree_only)
skip = 0; skip = 0;
if (!extent_only && !device_only) if (!skip)
printf("extent"); printf("extent");
break; break;
case BTRFS_CHUNK_TREE_OBJECTID: case BTRFS_CHUNK_TREE_OBJECTID:
@ -279,7 +284,9 @@ again:
} }
break; break;
case BTRFS_DEV_TREE_OBJECTID: case BTRFS_DEV_TREE_OBJECTID:
if (!uuid_tree_only)
skip = 0; skip = 0;
if (!skip)
printf("device"); printf("device");
break; break;
case BTRFS_FS_TREE_OBJECTID: case BTRFS_FS_TREE_OBJECTID:
@ -331,6 +338,12 @@ again:
printf("quota"); printf("quota");
} }
break; break;
case BTRFS_UUID_TREE_OBJECTID:
if (!extent_only && !device_only)
skip = 0;
if (!skip)
printf("uuid");
break;
case BTRFS_MULTIPLE_OBJECTIDS: case BTRFS_MULTIPLE_OBJECTIDS:
if (!skip) { if (!skip) {
printf("multiple"); printf("multiple");
@ -369,7 +382,7 @@ no_node:
goto again; goto again;
} }
if (extent_only || device_only) if (extent_only || device_only || uuid_tree_only)
goto close_root; goto close_root;
if (root_backups) if (root_backups)