linux-toradex.git/fs/btrfs/root-tree.c, branch v3.0.18

Merge branch 'cleanups_and_fixes' into inode_numbers

2011-05-23T18:37:47+00:00

Conflicts:
	fs/btrfs/tree-log.c
	fs/btrfs/volumes.c

Signed-off-by: Chris Mason

Btrfs: return error code to caller when btrfs_del_item fails

2011-05-23T17:24:39+00:00

The error code is returned instead of calling BUG_ON when
btrfs_del_item returns the error.

Signed-off-by: Tsutomu Itoh 
Signed-off-by: Chris Mason

btrfs: remove all unused functions

2011-05-06T10:34:03+00:00

Remove static and global declarations and/or definitions. Reduces size
of btrfs.ko by ~3.4kB.

  text    data     bss     dec     hex filename
402081    7464     200  409745   64091 btrfs.ko.base
398620    7144     200  405964   631cc btrfs.ko.remove-all

Signed-off-by: David Sterba

btrfs: drop unused parameter from btrfs_release_path

2011-05-02T11:57:22+00:00

parameter tree root it's not used since commit
5f39d397dfbe140a14edecd4e73c34ce23c4f9ee ("Btrfs: Create extent_buffer
interface for large blocksizes")

Signed-off-by: David Sterba

Btrfs: Fix uninitialized root flags for subvolumes

2011-04-05T05:20:24+00:00

root_item->flags and root_item->byte_limit are not initialized when
a subvolume is created. This bug is not revealed until we added
readonly snapshot support - now you mount a btrfs filesystem and you
may find the subvolumes in it are readonly.

To work around this problem, we steal a bit from root_item->inode_item->flags,
and use it to indicate if those fields have been properly initialized.
When we read a tree root from disk, we check if the bit is set, and if
not we'll set the flag and initialize the two fields of the root item.

Reported-by: Andreas Philipp 
Signed-off-by: Li Zefan 
Tested-by: Andreas Philipp 
cc: stable@kernel.org
Signed-off-by: Chris Mason

Btrfs: cleanup some BUG_ON()

2011-03-28T09:37:35+00:00

This patch changes some BUG_ON() to the error return.
(but, most callers still use BUG_ON())

Signed-off-by: Tsutomu Itoh 
Signed-off-by: Chris Mason

Btrfs: cleanup warnings from gcc 4.6 (nonbugs)

2010-10-29T19:14:37+00:00

These are all the cases where a variable is set, but not read which are
not bugs as far as I can see, but simply leftovers.

Still needs more review.

Found by gcc 4.6's new warnings

Signed-off-by: Andi Kleen 
Cc: Chris Mason 
Signed-off-by: Andrew Morton 
Signed-off-by: Chris Mason

Btrfs: avoid BUG when dropping root and reference in same transaction

2010-06-11T19:57:39+00:00

If btrfs_ioctl_snap_destroy() deletes a snapshot but finishes
with end_transaction(), the cleaner kthread may come in and
drop the root in the same transaction.  If that's the case, the
root's refs still == 1 in the tree when btrfs_del_root() deletes
the item, because commit_fs_roots() hasn't updated it yet (that
happens during the commit).

This wasn't a problem before only because
btrfs_ioctl_snap_destroy() would commit the transaction before dropping
the dentry reference, so the dead root wouldn't get queued up until
after the fs root item was updated in the btree.

Since it is not an error to drop the root reference and the root in the
same transaction, just drop the BUG_ON() in btrfs_del_root().

Signed-off-by: Sage Weil 
Signed-off-by: Chris Mason

Btrfs: Metadata reservation for orphan inodes

2010-05-25T14:34:52+00:00

reserve metadata space for handling orphan inodes

Signed-off-by: Yan Zheng 
Signed-off-by: Chris Mason

Btrfs: skip btrfs_release_path in btrfs_update_root and btrfs_del_root

2009-11-11T19:20:18+00:00

We don't need to call btrfs_release_path because btrfs_free_path will do
that for us.

Signed-off-by: Li Dongyang 
Signed-off-by: Chris Mason