[PATCH 0/2] btrfs: fix an on-stack path leak and migrate to auto-release for on-stack paths

[Qu Wenruo <wqu@suse.com>]

I thought patch "btrfs: make sure extent and csum paths are always released in
scrub_raid56_parity_stripe()" has already taught us that tag based
manual cleanup is never reliable, now there is another similar bug in
print_data_reloc_error().

This time it is harder to expose, as we always imply if the function
returned an error, they should do the proper cleanup.
But extent_to_logical() does not follow that assumption.

The first patch is the minimal fix for backport, the second patch is
going to solve the problem by using auto-release for all on-stack btrfs
paths.

Qu Wenruo (2):
  btrfs: fix a potential path leak in print_data_reloc_error()
  btrfs: introduce BTRFS_PATH_AUTO_RELEASE() helper

 fs/btrfs/ctree.h  |  5 +++++
 fs/btrfs/defrag.c |  5 +----
 fs/btrfs/inode.c  |  5 +----
 fs/btrfs/scrub.c  | 18 ++++++------------
 4 files changed, 13 insertions(+), 20 deletions(-)

-- 
2.52.0