Commit 8991448e56cb for kernel

commit 8991448e56cb2118b561eeda193af53b4ff6b632
Merge: a0c83177734a b17b79ff8963
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Mar 21 08:42:17 2026 -0700

    Merge tag 'for-7.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

    Pull btrfs fixes from David Sterba:
     "Another batch of fixes for problems that have been identified by tools
      analyzing code or by fuzzing. Most of them are short, two patches fix
      the same thing in many places so the diffs are bigger.

       - handle potential NULL pointer errors after attempting to read
         extent and checksum trees

       - prevent ENOSPC when creating many qgroups by ioctls in the same
         transaction

       - encoded write ioctl fixes (with 64K page and 4K block size):
           - fix unexpected bio length
           - do not let compressed bios and pages interfere with page cache

       - compression fixes on setups with 64K page and 4K block size: fix
         folio length assertions (zstd and lzo)

       - remap tree fixes:
           - make sure to hold block group reference while moving it
           - handle early exit when moving block group to unused list

       - handle deleted subvolumes with inconsistent state of deletion
         progress"

    * tag 'for-7.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
      btrfs: reject root items with drop_progress and zero drop_level
      btrfs: check block group before marking it unused in balance_remap_chunks()
      btrfs: hold block group reference during entire move_existing_remap()
      btrfs: fix an incorrect ASSERT() condition inside lzo_decompress_bio()
      btrfs: fix an incorrect ASSERT() condition inside zstd_decompress_bio()
      btrfs: do not touch page cache for encoded writes
      btrfs: fix a bug that makes encoded write bio larger than expected
      btrfs: reserve enough transaction items for qgroup ioctls
      btrfs: check for NULL root after calls to btrfs_csum_root()
      btrfs: check for NULL root after calls to btrfs_extent_root()