path: root/fs/btrfs/qgroup.c
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2013-01-21Btrfs: prevent qgroup destroy when there are still relationsArne Jansen1-1/+12
Currently you can just destroy a qgroup even though it is in use by other qgroups or has qgroups assigned to it. This patch prevents destruction of qgroups unless they are completely unused. Otherwise destroy will return EBUSY. Reported-by: Eric Hopper <hopper@omnifarious.org> Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-01-21Btrfs: ignore orphan qgroup relationsArne Jansen1-0/+7
If a qgroup that has still assignments is deleted by the user, the corresponding relations are left in the tree. This leads to an unmountable filesystem. With this patch, those relations are simple ignored. Reported-by: Eric Hopper <hopper@omnifarious.org> Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-10-25Btrfs: fix memory leak in btrfs_quota_enable()Tsutomu Itoh1-4/+13
We should free quota_root before returning from the error handling code. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
2012-10-01Btrfs: check return value of ulist_alloc() properlyTsutomu Itoh1-0/+8
ulist_alloc() has the possibility of returning NULL. So, it is necessary to check the return value. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
2012-10-01Btrfs: fix gcc warnings for 32bit compilesJan Schmidt1-16/+16
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-10-01Btrfs: make aux field of ulist 64 bitAlexander Block1-10/+10
Btrfs send/receive uses the aux field to store inode numbers. On 32 bit machines this may become a problem. Also fix all users of ulist_add and ulist_add_merged. Reported-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-09-14Revert "Btrfs: fix some error codes in btrfs_qgroup_inherit()"Chris Mason1-6/+2
This reverts commit 5986802c2fcc754040bb7ed95f30bb16c4a843b7. Both paths are not error paths but regular cases where non-qgroup subvols are involved. Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-08-28Btrfs: checking for NULL instead of IS_ERRDan Carpenter1-1/+3
add_qgroup_rb() never returns NULL, only error pointers. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
2012-08-28Btrfs: fix some error codes in btrfs_qgroup_inherit()Dan Carpenter1-2/+6
These are returning zero when it should be returning a negative error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
2012-07-12Btrfs: qgroup implementation and prototypesArne Jansen1-0/+1571
Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>