[PATCH 5.15 00/11] Backport of XFS umount hang fixes

[Siddh Raman Pant]

Backport of this series:
https://lore.kernel.org/all/20250625224957.1436116-1-david@xxxxxxxxxxxxx/

Along with appropriate pre-requisite commits.

Previous stable backport was used for doing this backport.

I have added information in commit message upon conflict resolutions.

Dave Chinner (10):
  xfs: log items should have a xlog pointer, not a mount
  xfs: aborting inodes on shutdown may need buffer lock
  xfs: dquot shrinker doesn't check for XFS_DQFLAG_FREEING
  xfs: buffer pins need to hold a buffer reference
  xfs: xfs_ifree_cluster vs xfs_iflush_shutdown_abort deadlock
  xfs: catch stale AGF/AGF metadata
  xfs: avoid dquot buffer pin deadlock
  xfs: rearrange code in xfs_buf_item.c
  xfs: factor out stale buffer item completion
  xfs: fix unmount hang with unflushable inodes stuck in the AIL

Guo Xuenan (1):
  xfs: fix super block buf log item UAF during force shutdown

 fs/xfs/libxfs/xfs_alloc.c  |  45 ++++-
 fs/xfs/libxfs/xfs_ialloc.c |  32 +++-
 fs/xfs/xfs_bmap_item.c     |   2 +-
 fs/xfs/xfs_buf.c           |  55 ------
 fs/xfs/xfs_buf.h           |   1 -
 fs/xfs/xfs_buf_item.c      | 378 ++++++++++++++++++++++++-------------
 fs/xfs/xfs_buf_item.h      |   3 +-
 fs/xfs/xfs_dquot.c         |   3 +-
 fs/xfs/xfs_extfree_item.c  |   2 +-
 fs/xfs/xfs_icache.c        |  10 +-
 fs/xfs/xfs_inode.c         |   4 +-
 fs/xfs/xfs_inode_item.c    | 162 +++++++++++++---
 fs/xfs/xfs_inode_item.h    |   1 +
 fs/xfs/xfs_log.c           |   2 +-
 fs/xfs/xfs_log_cil.c       |   2 +-
 fs/xfs/xfs_qm.c            |  95 +++-------
 fs/xfs/xfs_refcount_item.c |   2 +-
 fs/xfs/xfs_rmap_item.c     |   2 +-
 fs/xfs/xfs_trace.h         |   5 +-
 fs/xfs/xfs_trans.c         |   2 +-
 fs/xfs/xfs_trans.h         |   3 +-
 21 files changed, 495 insertions(+), 316 deletions(-)

-- 
2.53.0