From: Simon Glass <simon.glass@canonical.com> This series contains adaptations to Linux-imported files needed for ext4l write support in U-Boot. These changes are separated from the main ext4l implementation to make it easier to track modifications to imported code. The patches include: - Bit position fixes for REQ_OP and BH_OwnsData to avoid conflicts - JBD2 journal adaptations for U-Boot's single-threaded environment - Function exports to allow calling ext4 internals from U-Boot code - Cache management fixes for multiple mount/unmount cycles - Compiler warning fixes for Clang compatibility These changes are minimal modifications to the Linux ext4 and jbd2 code, using #ifdef __UBOOT__ guards where appropriate to ease future Linux updates. Simon Glass (14): linux: ext4l: Fix REQ_OP and BH_OwnsData bit positions linux: jbd2: Add synchronous commit on transaction stop linux: ext4l: Export ext4 functions for U-Boot interface linux: ext4l: Skip orphan handling in U-Boot linux: fs: Add folio cache to address_space linux: percpu_counter: Add initialized field linux: ext4l: Mark journaled metadata buffers dirty for bh_cache_sync linux: jbd2: Add validation in jbd2_journal_write_metadata_buffer linux: jbd2: Add jbd2_journal_exit_global for clean shutdown linux: slab: Convert kmem_cache functions to declarations linux: ext4l: Mark ext4_groupinfo_slab_names unused linux: ext4l: Export ext4_commit_super function linux: ext4l: Make cache init/exit functions reentrant for U-Boot linux: ext4l: Initialize len in ext4_ext_find_hole fs/ext4l/block_validity.c | 10 ++++++ fs/ext4l/ext4.h | 9 ++++++ fs/ext4l/ext4_jbd2.c | 8 +++++ fs/ext4l/ext4_uboot.h | 17 +++++++--- fs/ext4l/extents.c | 2 +- fs/ext4l/extents_status.c | 6 ++++ fs/ext4l/mballoc.c | 15 ++++++++- fs/ext4l/namei.c | 18 +++++------ fs/ext4l/orphan.c | 9 ++++++ fs/ext4l/super.c | 3 +- fs/ext4l/support.c | 2 +- fs/jbd2/journal.c | 57 +++++++++++++++++++++++++++++++++- fs/jbd2/transaction.c | 18 +++++++++++ include/linux/buffer_head.h | 2 -- include/linux/fs.h | 10 ++++++ include/linux/jbd2.h | 1 + include/linux/percpu_counter.h | 4 ++- include/linux/slab.h | 15 ++------- 18 files changed, 172 insertions(+), 34 deletions(-) -- 2.43.0 base-commit: aebb9f0ed65190ea07b5aed38206e40500674182 branch: extj