kernel.git/fs/btrfs/backref.h, branch linux-3.7.y

Btrfs: extended inode refs support for send mechanism

2012-10-25T19:45:16Z

This adds support for the new extended inode refs to btrfs send. Signed-off-by: Jan Schmidt

btrfs: extended inode ref iteration

2012-10-09T13:15:01Z

The iterate_irefs in backref.c is used to build path components from inode refs. This patch adds code to iterate extended refs as well. I had modify the callback function signature to abstract out some of the differences between ref structures. iref_to_path() also needed similar changes. Signed-off-by: Mark Fasheh

btrfs: extended inode refs

2012-10-09T13:14:45Z

This patch adds basic support for extended inode refs. This includes support for link and unlink of the refs, which basically gets us support for rename as well. Inode creation does not need changing - extended refs are only added after the ref array is full. Signed-off-by: Mark Fasheh

Btrfs: fix a bug in parsing return value in logical resolve

2012-10-01T19:19:18Z

In logical resolve, we parse extent_from_logical()'s 'ret' as a kind of flag. It is possible to lose our errors because (-EXXXX & BTRFS_EXTENT_FLAG_TREE_BLOCK) is true. I'm not sure if it is on purpose, it just looks too hacky if it is. I'd rather use a real flag and a 'ret' to catch errors. Acked-by: Jan Schmidt Signed-off-by: Liu Bo

Merge branch 'send-v2' of git://github.com/ablock84/linux-btrfs into for-linus

2012-07-25T23:19:10Z

This is the kernel portion of btrfs send/receive Conflicts: fs/btrfs/Makefile fs/btrfs/backref.h fs/btrfs/ctree.c fs/btrfs/ioctl.c fs/btrfs/ioctl.h Signed-off-by: Chris Mason

Btrfs: make iref_to_path non static

2012-07-25T21:25:06Z

Make iref_to_path non static (needed in send) and rename it to btrfs_iref_to_path Signed-off-by: Alexander Block

Btrfs: join tree mod log code with the code holding back delayed refs

2012-07-10T13:14:41Z

We've got two mechanisms both required for reliable backref resolving (tree mod log and holding back delayed refs). You cannot make use of one without the other. So instead of requiring the user of this mechanism to setup both correctly, we join them into a single interface. Additionally, we stop inserting non-blockers into fs_info->tree_mod_seq_list as we did before, which was of no value. Signed-off-by: Jan Schmidt

Btrfs: use the tree modification log for backref resolving

2012-05-30T13:17:34Z

This enables backref resolving on life trees while they are changing. This is a prerequisite for quota groups and just nice to have for everything else. Signed-off-by: Jan Schmidt

Btrfs: look into the extent during find_all_leafs

2012-05-26T10:17:52Z

Before this patch we called find_all_leafs for a data extent, then called find_all_roots and then looked into the extent to grab the information we were seeking. This was done without holding the leaves locked to avoid deadlocks. However, this can obviouly race with concurrent tree modifications. Instead, we now look into the extent while we're holding the lock during find_all_leafs and store this information together with the leaf list. Signed-off-by: Jan Schmidt

Btrfs: fix regression in scrub path resolving

2012-03-27T12:51:21Z

In commit 4692cf58 we introduced new backref walking code for btrfs. This assumes we're searching live roots, which requires a transaction context. While scrubbing, however, we must not join a transaction because this could deadlock with the commit path. Additionally, what scrub really wants to do is resolving a logical address in the commit root it's currently checking. This patch adds support for logical to path resolving on commit roots and makes scrub use that. Signed-off-by: Jan Schmidt