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| author |   Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-03-23 17:32:28 +0100 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-03-27 14:51:21 +0200 |
| commit | 7a3ae2f8c8c8432e65467b7fc84d5deab04061a0 (patch) | |
| tree | e93c46eb8def633533fe80032872f71b36fc03b8 /fs/btrfs/backref.h | |
| parent | Btrfs: check return value of btrfs_cow_block() (diff) | |
| download | linux-dev-7a3ae2f8c8c8432e65467b7fc84d5deab04061a0.tar.xz linux-dev-7a3ae2f8c8c8432e65467b7fc84d5deab04061a0.zip | |
Btrfs: fix regression in scrub path resolving
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 <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/backref.h')
| -rw-r--r-- | fs/btrfs/backref.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index d00dfa9ca934..57ea2e959e4d 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -22,6 +22,8 @@ #include "ioctl.h" #include "ulist.h" +#define BTRFS_BACKREF_SEARCH_COMMIT_ROOT ((struct btrfs_trans_handle *)0) + struct inode_fs_paths { struct btrfs_path *btrfs_path; struct btrfs_root *fs_root; @@ -44,9 +46,8 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, u64 *out_root, u8 *out_level); int iterate_extent_inodes(struct btrfs_fs_info *fs_info, - struct btrfs_path *path, u64 extent_item_objectid, - u64 extent_offset, + u64 extent_offset, int search_commit_root, iterate_extent_inodes_t *iterate, void *ctx); int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info, |