Merge tag 'f2fs-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs update from Jaegeuk Kim:
 "In this series, we've some progress to support Zoned block device
  regarding to the power-cut recovery flow and enabling
  checkpoint=disable feature which is essential for Android OTA.

  Other than that, some patches touched sysfs entries and tracepoints
  which are minor, while several bug fixes on error handlers and
  compression flows are good to improve the overall stability.

  Enhancements:
   - enable checkpoint=disable for zoned block device
   - sysfs entries such as discard status, discard_io_aware, dir_level
   - tracepoints such as f2fs_vm_page_mkwrite(), f2fs_rename(),
     f2fs_new_inode()
   - use shared inode lock during f2fs_fiemap() and f2fs_seek_block()

  Bug fixes:
   - address some power-cut recovery issues on zoned block device
   - handle errors and logics on do_garbage_collect(),
     f2fs_reserve_new_block(), f2fs_move_file_range(),
     f2fs_recover_xattr_data()
   - don't set FI_PREALLOCATED_ALL for partial write
   - fix to update iostat correctly in f2fs_filemap_fault()
   - fix to wait on block writeback for post_read case
   - fix to tag gcing flag on page during block migration
   - restrict max filesize for 16K f2fs
   - fix to avoid dirent corruption
   - explicitly null-terminate the xattr list

  There are also several clean-up patches to remove dead codes and
  better readability"

* tag 'f2fs-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (33 commits)
  f2fs: show more discard status by sysfs
  f2fs: Add error handling for negative returns from do_garbage_collect
  f2fs: Constrain the modification range of dir_level in the sysfs
  f2fs: Use wait_event_freezable_timeout() for freezable kthread
  f2fs: fix to check return value of f2fs_recover_xattr_data
  f2fs: don't set FI_PREALLOCATED_ALL for partial write
  f2fs: fix to update iostat correctly in f2fs_filemap_fault()
  f2fs: fix to check compress file in f2fs_move_file_range()
  f2fs: fix to wait on block writeback for post_read case
  f2fs: fix to tag gcing flag on page during block migration
  f2fs: add tracepoint for f2fs_vm_page_mkwrite()
  f2fs: introduce f2fs_invalidate_internal_cache() for cleanup
  f2fs: update blkaddr in __set_data_blkaddr() for cleanup
  f2fs: introduce get_dnode_addr() to clean up codes
  f2fs: delete obsolete FI_DROP_CACHE
  f2fs: delete obsolete FI_FIRST_BLOCK_WRITTEN
  f2fs: Restrict max filesize for 16K f2fs
  f2fs: let's finish or reset zones all the time
  f2fs: check write pointers when checkpoint=disable
  f2fs: fix write pointers on zoned device after roll forward
  ...

1 files changed, 21 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 36c3cb547901..99fa87a43926 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -498,6 +498,21 @@ Description:	Show status of f2fs checkpoint in real time.
 		CP_RESIZEFS_FLAG		0x00004000
 		=============================== ==============================
 
+What:		/sys/fs/f2fs/<disk>/stat/issued_discard
+Date:		December 2023
+Contact:	"Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description:	Shows the number of issued discard.
+
+What:		/sys/fs/f2fs/<disk>/stat/queued_discard
+Date:		December 2023
+Contact:	"Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description:	Shows the number of queued discard.
+
+What:		/sys/fs/f2fs/<disk>/stat/undiscard_blks
+Date:		December 2023
+Contact:	"Zhiguo Niu" <zhiguo.niu@unisoc.com>
+Description:	Shows the total number of undiscard blocks.
+
 What:		/sys/fs/f2fs/<disk>/ckpt_thread_ioprio
 Date:		January 2021
 Contact:	"Daeho Jeong" <daehojeong@google.com>
@@ -740,3 +755,9 @@ Description:	When compress cache is on, it controls cached page
 		If cached page percent exceed threshold, then deny caching compress page.
 		The value should be in range of (0, 100], by default it was initialized
 		as 20(%).
+
+What:		/sys/fs/f2fs/<disk>/discard_io_aware
+Date:		November 2023
+Contact:	"Chao Yu" <chao@kernel.org>
+Description:	It controls to enable/disable IO aware feature for background discard.
+		By default, the value is 1 which indicates IO aware is on.