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path: root/fs/btrfs/ulist.h (follow)
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2012-10-01Btrfs: make aux field of ulist 64 bitAlexander Block1-5/+4
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>
2012-05-31Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linusChris Mason1-2/+12
Conflicts: fs/btrfs/ulist.h Signed-off-by: Chris Mason <chris.mason@oracle.com>
2012-05-31Btrfs: add inodes before dropping the extent lock in find_all_leafsJan Schmidt1-0/+2
We must build up the inode list with the extent lock held after following indirect refs. This also requires an extension to ulists, which allows to modify the stored aux value in case a key already exists in the list. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
2012-05-30Fix minor type issuesDaniel J Blueman1-3/+2
Address some minor type issues identified by sparse checker. Signed-off-by: Daniel J Blueman <daniel@quora.org>
2012-05-26Btrfs: ulist realloc bugfixJan Schmidt1-1/+8
ulist_next gets the pointer to the previously returned element to find the next element from there. However, when we call ulist_add while iteration with ulist_next is in progress (ulist explicitly supports this), we can realloc the ulist internal memory, which makes the pointer to the previous element useless. Instead, we now use an iterator parameter that's independent from the internal pointers. Reported-by: Alexander Block <ablock84@googlemail.com> Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
2011-12-22Btrfs: generic data structure to build unique listsArne Jansen1-0/+68
ulist is a generic data structures to hold a collection of unique u64 values. The only operations it supports is adding to the list and enumerating it. It is possible to store an auxiliary value along with the key. The implementation is preliminary and can probably be sped up significantly. It is used by btrfs_find_all_roots() quota to translate recursions into iterative loops. Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>