[GIT PULL] erofs updates for 7.3-rc1

Hi Linus,

Could consider these commits for 7.3-rc1?

The most notable enhancement is to allow passing source fds via
fsconfig() for composefs. The others are all various fixes.

All commits have been in -next and no potential merge conflict is
observed.

Thanks,
Gao Xiang

The following changes since commit 075b74841bd0065a3bda3440873c747938e69b68:

  Linux 7.2-rc6 (2026-08-02 16:24:24 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-7.3-rc1

for you to fetch changes up to 988c3c186c730590a71df8adc1424c5578ef8bae:

  erofs: fix unused pcluster_pools for higher page sizes (2026-08-17 17:05:58 +0800)

----------------------------------------------------------------
Changes since last update:

 - Allow source fds via fsconfig(), in addition to source paths

 - Use dedicated metadata inodes for file-backed mounts

 - Disallow invalid interlaced ztailpacking pclusters

 - Validate on-disk compression algorithm IDs against supported ones

 - Fix unused pcluster pools on higher page-size platforms

----------------------------------------------------------------
Gao Xiang (3):
      erofs: use dedicated meta inodes for file-backed mounts
      erofs: fix interlaced ztailpacking pclusters
      erofs: guard on-disk algorithm IDs against Z_EROFS_COMPRESSION_MAX

Giuseppe Scrivano (2):
      erofs: fix typo in error messages
      erofs: accept source file descriptor via fsconfig

Ojaswin Mujoo (1):
      erofs: fix unused pcluster_pools for higher page sizes

 Documentation/filesystems/erofs.rst |  17 ++++++
 fs/erofs/data.c                     |  28 +++------
 fs/erofs/decompressor.c             |   1 +
 fs/erofs/fileio.c                   |  21 +++++++
 fs/erofs/internal.h                 |  14 +++--
 fs/erofs/super.c                    | 112 ++++++++++++++++++++++++++++--------
 fs/erofs/zdata.c                    |  25 ++++----
 fs/erofs/zmap.c                     |  38 +++++++-----
 8 files changed, 182 insertions(+), 74 deletions(-)