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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-13 19:41:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-13 19:41:27 -0700 |
| commit | 659e45d8a0aca8619f0d308448c480279fa002b6 (patch) | |
| tree | 4475e6a64568e81d9418265eb4932f017e7a61a9 /fs/btrfs/free-space-cache.c | |
| parent | c104f1fa1ecf4ee0fc06e31b1f77630b2551be81 (diff) | |
| parent | d53ba47484ed6245e640ee4bfe9d21e9bfc15765 (diff) | |
Merge branch 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull the minimal btrfs branch from Chris Mason:
"We have a use-after-free in there, along with errors when mount -o
discard is enabled, and a BUG_ON(we should compile with UP more
often)."
* 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: use commit root when loading free space cache
Btrfs: fix use-after-free in __btrfs_end_transaction
Btrfs: check return value of bio_alloc() properly
Btrfs: remove lock assert from get_restripe_target()
Btrfs: fix eof while discarding extents
Btrfs: fix uninit variable in repair_eb_io_failure
Revert "Btrfs: increase the global block reserve estimates"
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index e88330d3df52..202008ec367d 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -748,13 +748,6 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, u64 used = btrfs_block_group_used(&block_group->item); /* - * If we're unmounting then just return, since this does a search on the - * normal root and not the commit root and we could deadlock. - */ - if (btrfs_fs_closing(fs_info)) - return 0; - - /* * If this block group has been marked to be cleared for one reason or * another then we can't trust the on disk cache, so just return. */ @@ -768,6 +761,8 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, path = btrfs_alloc_path(); if (!path) return 0; + path->search_commit_root = 1; + path->skip_locking = 1; inode = lookup_free_space_inode(root, block_group, path); if (IS_ERR(inode)) { |