[v4,0/6] xfs: properly invalidate cached writeback mapping

Message

Brian Foster Feb. 1, 2019, 2:32 p.m. UTC

Hi all,

This is a minor update of this series to fold in some changes from
Christoph's follow on series to rework the delalloc conversion code. The
changes apply to patches 5 and 6 and rename/rework the delalloc helper.
The subsequent series will fill in a real implementation for the wrapper
and further clean up the writeback code.

Brian

v4:
- Fold in Christoph's interface changes from the delalloc conversion
  rework series (patches 5-6).
v3: https://marc.info/?l=linux-xfs&m=154826889919747&w=2
- Move comment in xfs_imap_valid().
- Replace lookup+trim in xfs_iomap_write_allocate() with
  xfs_bmapi_delalloc() wrapper mechanism.
v2: https://marc.info/?l=linux-xfs&m=154775280823464&w=2
- Refactor validation logic into xfs_imap_valid() helper.
- Revalidate seqno after the lock cycle in xfs_map_blocks().
- Update *seq in xfs_iomap_write_allocate() regardless of fork type.
- Add patch 5 for seqno revalidation on xfs_iomap_write_allocate() lock
  cycles.
v1: https://marc.info/?l=linux-xfs&m=154721212321112&w=2

Brian Foster (6):
  xfs: eof trim writeback mapping as soon as it is cached
  xfs: update fork seq counter on data fork changes
  xfs: validate writeback mapping using data fork seq counter
  xfs: remove superfluous writeback mapping eof trimming
  xfs: create delalloc bmapi wrapper for full extent allocation
  xfs: use the latest extent at writeback delalloc conversion time

 fs/xfs/libxfs/xfs_bmap.c       |  68 ++++++++++---
 fs/xfs/libxfs/xfs_bmap.h       |   3 +-
 fs/xfs/libxfs/xfs_iext_tree.c  |  13 ++-
 fs/xfs/libxfs/xfs_inode_fork.h |   2 +-
 fs/xfs/xfs_aops.c              |  71 +++++++++-----
 fs/xfs/xfs_iomap.c             | 171 +++++++++++----------------------
 6 files changed, 165 insertions(+), 163 deletions(-)