[PATCH 0/3] iomap: fix error handling regressions

[Andrea Parri]

Fix three independent error handling regressions in iomap:

 - clear the writeback context after a failed ->writeback_submit() call,
   preventing an already completed ioend from being submitted again;
 - preserve an iomap iteration error when iomap_fiemap() has a pending
   extent to emit; and
 - preserve a direct I/O data path error when sub-block tail zeroing
   succeeds.

The fixes have no ordering dependencies and can be applied or backported
independently.  Each issue was reproduced before and after its respective
fix.

Andrea Parri (3):
  iomap: don't resubmit an ioend after ->writeback_submit() failed
  iomap: don't lose a fiemap iteration error when emitting the last
    extent
  iomap: don't lose a failed direct I/O bio's error when zeroing the
    tail

 fs/iomap/direct-io.c | 11 ++++++++---
 fs/iomap/fiemap.c    |  8 ++++----
 fs/iomap/ioend.c     | 10 +++++++++-
 3 files changed, 21 insertions(+), 8 deletions(-)


base-commit: 93f51579e7df248780214094418f205253383cc5
-- 
2.53.0