The number of distinct key types is not that big that we could waste one
for something new we want to store in the tree.
Similar to the temporary items, we'll introduce a new name for an
existing key value and use the objectid for further extension. The
victim is the BTRFS_DEV_STATS_KEY (248).
The device stats are an example of a permanent item.
[ kernel patch 50c2d5abe64c1726b48d292a2ab04f60e8238933 ]
Signed-off-by: David Sterba <dsterba@suse.com>
The number of distinct key types is not that big that we could waste one
for something new we want to store in the tree. We'll introduce a new
name for an existing key value and use the objectid for further
extension. The victim is the BTRFS_BALANCE_ITEM_KEY (248).
The nature of the balance status item is a good example of the temporary
item. It exists from beginning of the balance, keeps the status until it
finishes.
[ kernel patch 0bbbccb17fea86818e1a058faf5903aefd20b31a ]
Signed-off-by: David Sterba <dsterba@suse.com>
Print a few more missing items of root_item (there are still some
remaining). Drop key is printend unconditionally.
Signed-off-by: David Sterba <dsterba@suse.com>
The toplevel subvolume is special and the other listing code leaves it
out so we have to add several special cases to handle it. There's no
backreference so the path is built artificially. New helper
btrfs_get_toplevel_subvol is a reduced version of btrfs_get_subvol.
There's some information usually missing for the toplevel subvolume, eg.
the uuid or creation info. This has to be fixed on the mkfs side, the
other subvolumes are created by kernel.
Example:
/mnt
Name: <FS_TREE>
UUID: -
Parent UUID: -
Received UUID: -
Creation time: -
Subvolume ID: 5
Generation: 233
Gen at creation: 0
Parent ID: 0
Top level ID: 0
Flags: -
Snapshot(s):
subv1
Signed-off-by: David Sterba <dsterba@suse.com>
The utils helper is not verbose in case of an error, for now the helper
used for subvolume listing will print the error message but not
duplicate the ioctl anymore.
Signed-off-by: David Sterba <dsterba@suse.com>
If btrfs_get_path_rootid fails, prints an error message but continues.
Replace with a helper that returns an error.
Signed-off-by: David Sterba <dsterba@suse.com>
Since new "receive --dump" has better output and structure, it's time
to remove old and function-weak send-test tool.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Automated build checks for the devel branch and integration to coverity,
using travis.org. Roman's initial .yml version has been adjusted for
btrfs-progs needs.
Author: Roman Lebedev <lebedev.ri@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
While most guys are using ctags and cscope with vim, new completion tool
like vim-clang_completion is gaining its popularity, due to its compiler
level accuracy simpleness to use.
Since ctags and cscope are already in .gitignore, I see no reason to
reject .clang_complete.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add test case to check the basic function of --clear-space-cache.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Kernel clear_cache mount option will only rebuild free space cache if
the used space of that chunk has changed.
So it won't ensure any corrupted free space cache get cleared.
So add a new option "--clear-space-cache v1|v2" to btrfsck, to
completely wipe out free space cache.
So kernel won't complain again.
Reported-by: Ivan P <chrnosphered@gmail.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ adjusted error messages, doc wording changes ]
Signed-off-by: David Sterba <dsterba@suse.com>
While performing an fsck, an assertion failure occurs because of reusing path in a loop.
ctree.c:1112: btrfs_search_slot: Warning: assertion `p->nodes[0] != NULL` failed, value 0
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
David Sterba