[GIT PULL] vfs fixes

[Christian Brauner]

Hey Linus,

/* Summary */

This contains fixes for this merge window:

vfs:

- Ensure that iter_folioq_get_pages() advances to the next slot otherwise it
  will end up using the same folio with an out-of-bound offset.

iomap:

- Dont unshare delalloc extents which can't be reflinked, and thus can't be shared.

- Constrain the file range passed to iomap_file_unshare() directly in iomap
  instead of requiring the callers to do it.

netfs:

- Use folioq_count instead of folioq_nr_slot to prevent an unitialized value
  warning in netfs_clear_buffer().

- Fix missing wakeup after issuing writes by scheduling the write collector
  only if all the subrequest queues are empty and thus no writes are pending.

- Fix two minor documentation bugs.

/* Testing */

gcc version 14.2.0 (Debian 14.2.0-3)
Debian clang version 16.0.6 (27+b1)

/* Conflicts */

No known conflicts.

The following changes since commit e32cde8d2bd7d251a8f9b434143977ddf13dcec6:

  Merge tag 'sched_ext-for-6.12-rc1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext (2024-09-30 12:58:17 -0700)

are available in the Git repository at:

  git@xxxxxxxxxxxxxxxxxxx:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.12-rc2.fixes.2

for you to fetch changes up to a311a08a4237241fb5b9d219d3e33346de6e83e0:

  iomap: constrain the file range passed to iomap_file_unshare (2024-10-03 10:22:28 +0200)

Please consider pulling these changes from the signed vfs-6.12-rc2.fixes.2 tag.

Thanks!
Christian

----------------------------------------------------------------
vfs-6.12-rc2.fixes.2

----------------------------------------------------------------
Chang Yu (1):
      netfs: Fix a KMSAN uninit-value error in netfs_clear_buffer

Christian Brauner (2):
      folio_queue: fix documentation
      Documentation: add missing folio_queue entry

Darrick J. Wong (2):
      iomap: don't bother unsharing delalloc extents
      iomap: constrain the file range passed to iomap_file_unshare

David Howells (1):
      netfs: Fix missing wakeup after issuing writes

Omar Sandoval (1):
      iov_iter: fix advancing slot in iter_folioq_get_pages()

 Documentation/core-api/index.rst |  1 +
 fs/dax.c                         |  6 +++++-
 fs/iomap/buffered-io.c           |  9 +++++++--
 fs/netfs/misc.c                  |  2 +-
 fs/netfs/write_issue.c           | 42 ++++++++++++++++++++++++++--------------
 include/linux/folio_queue.h      |  2 +-
 lib/iov_iter.c                   |  2 +-
 7 files changed, 43 insertions(+), 21 deletions(-)