[GIT PULL for v6.11] vfs iomap

[Christian Brauner]

Hey Linus,

/* Summary */
This contains some minor work for the iomap subsystem:

- Add documentaiton on the design of iomap and how to port to it.

- Optimize iomap_read_folio().

- Bring back the change to iomap_write_end() to no increase i_size. This is
  accompanied by a change to xfs to reserve blocks for truncating large
  realtime inodes to avoid exposing stale data when iomap_write_end()
  stops increasing i_size.

/* Testing */
clang: Debian clang version 16.0.6 (26)
gcc: (Debian 13.2.0-24)

All patches are based on v6.10-rc4 and have been sitting in linux-next.
No build failures or warnings were observed.

/* Conflicts */
No known conflicts.

The following changes since commit 6ba59ff4227927d3a8530fc2973b80e94b54d58f:

  Linux 6.10-rc4 (2024-06-16 13:40:16 -0700)

are available in the Git repository at:

  git@xxxxxxxxxxxxxxxxxxx:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.11.iomap

for you to fetch changes up to 602f09f4029c7b5e1a2f44a7651ac8922a904a1b:

  iomap: don't increase i_size in iomap_write_end() (2024-06-19 15:58:28 +0200)

Please consider pulling these changes from the signed vfs-6.11.iomap tag.

Thanks!
Christian

----------------------------------------------------------------
vfs-6.11.iomap

----------------------------------------------------------------
Darrick J. Wong (1):
      Documentation: the design of iomap and how to port

Ritesh Harjani (IBM) (1):
      iomap: Optimize iomap_read_folio

Zhang Yi (2):
      xfs: reserve blocks for truncating large realtime inode
      iomap: don't increase i_size in iomap_write_end()

 Documentation/filesystems/index.rst            |   1 +
 Documentation/filesystems/iomap/design.rst     | 441 +++++++++++++++
 Documentation/filesystems/iomap/index.rst      |  13 +
 Documentation/filesystems/iomap/operations.rst | 713 +++++++++++++++++++++++++
 Documentation/filesystems/iomap/porting.rst    | 120 +++++
 MAINTAINERS                                    |   1 +
 fs/iomap/buffered-io.c                         |  73 ++-
 fs/xfs/xfs_iops.c                              |  15 +-
 8 files changed, 1351 insertions(+), 26 deletions(-)
 create mode 100644 Documentation/filesystems/iomap/design.rst
 create mode 100644 Documentation/filesystems/iomap/index.rst
 create mode 100644 Documentation/filesystems/iomap/operations.rst
 create mode 100644 Documentation/filesystems/iomap/porting.rst