Merge tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Changes outside of btrfs: add io_uring command flag to track a dying
  task (the rest will go via the block git tree).

  User visible changes:

   - wire encoded read (ioctl) to io_uring commands, this can be used on
     itself, in the future this will allow 'send' to be asynchronous. As
     a consequence, the encoded read ioctl can also work in non-blocking
     mode

   - new ioctl to wait for cleaned subvolumes, no need to use the
     generic and root-only SEARCH_TREE ioctl, will be used by "btrfs
     subvol sync"

   - recognize different paths/symlinks for the same devices and don't
     report them during rescanning, this can be observed with LVM or DM

   - seeding device use case change, the sprout device (the one
     capturing new writes) will not clear the read-only status of the
     super block; this prevents accumulating space from deleted
     snapshots

  Performance improvements:

   - reduce lock contention when traversing extent buffers

   - reduce extent tree lock contention when searching for inline
     backref

   - switch from rb-trees to xarray for delayed ref tracking,
     improvements due to better cache locality, branching factors and
     more compact data structures

   - enable extent map shrinker again (prevent memory exhaustion under
     some types of IO load), reworked to run in a single worker thread
     (there used to be problems causing long stalls under memory
     pressure)

  Core changes:

   - raid-stripe-tree feature updates:
       - make device replace and scrub work
       - implement partial deletion of stripe extents
       - new selftests

   - split the config option BTRFS_DEBUG and add EXPERIMENTAL for
     features that are experimental or with known problems so we don't
     misuse debugging config for that

   - subpage mode updates (sector < page):
       - update compression implementations
       - update writepage, writeback

   - continued folio API conversions:
       - buffered writes

   - make buffered write copy one page at a time, preparatory work for
     future integration with large folios, may cause performance drop

   - proper locking of root item regarding starting send

   - error handling improvements

   - code cleanups and refactoring:
       - dead code removal
       - unused parameter reduction
       - lockdep assertions"

* tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (119 commits)
  btrfs: send: check for read-only send root under critical section
  btrfs: send: check for dead send root under critical section
  btrfs: remove check for NULL fs_info at btrfs_folio_end_lock_bitmap()
  btrfs: fix warning on PTR_ERR() against NULL device at btrfs_control_ioctl()
  btrfs: fix a typo in btrfs_use_zone_append
  btrfs: avoid superfluous calls to free_extent_map() in btrfs_encoded_read()
  btrfs: simplify logic to decrement snapshot counter at btrfs_mksnapshot()
  btrfs: remove hole from struct btrfs_delayed_node
  btrfs: update stale comment for struct btrfs_delayed_ref_node::add_list
  btrfs: add new ioctl to wait for cleaned subvolumes
  btrfs: simplify range tracking in cow_file_range()
  btrfs: remove conditional path allocation in btrfs_read_locked_inode()
  btrfs: push cleanup into btrfs_read_locked_inode()
  io_uring/cmd: let cmds to know about dying task
  btrfs: add struct io_btrfs_cmd as type for io_uring_cmd_to_pdu()
  btrfs: add io_uring command for encoded reads (ENCODED_READ ioctl)
  btrfs: move priv off stack in btrfs_encoded_read_regular_fill_pages()
  btrfs: don't sleep in btrfs_encoded_read() if IOCB_NOWAIT is set
  btrfs: change btrfs_encoded_read() so that reading of extent is done by caller
  btrfs: remove pointless iocb::ki_pos addition in btrfs_encoded_read()
  ...

1 files changed, 20 insertions, 19 deletions

diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index af6b3827fb1d..4df93ca9b7a8 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1706,9 +1706,10 @@ DEFINE_EVENT(btrfs__qgroup_rsv_data, btrfs_qgroup_release_data,
 
 DECLARE_EVENT_CLASS(btrfs_qgroup_extent,
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_qgroup_extent_record *rec),
+		 const struct btrfs_qgroup_extent_record *rec,
+		 u64 bytenr),
 
-	TP_ARGS(fs_info, rec),
+	TP_ARGS(fs_info, rec, bytenr),
 
 	TP_STRUCT__entry_btrfs(
 		__field(	u64,  bytenr		)
@@ -1716,7 +1717,7 @@ DECLARE_EVENT_CLASS(btrfs_qgroup_extent,
 	),
 
 	TP_fast_assign_btrfs(fs_info,
-		__entry->bytenr		= rec->bytenr;
+		__entry->bytenr		= bytenr;
 		__entry->num_bytes	= rec->num_bytes;
 	),
 
@@ -1727,17 +1728,19 @@ DECLARE_EVENT_CLASS(btrfs_qgroup_extent,
 DEFINE_EVENT(btrfs_qgroup_extent, btrfs_qgroup_account_extents,
 
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_qgroup_extent_record *rec),
+		 const struct btrfs_qgroup_extent_record *rec,
+		 u64 bytenr),
 
-	TP_ARGS(fs_info, rec)
+	TP_ARGS(fs_info, rec, bytenr)
 );
 
 DEFINE_EVENT(btrfs_qgroup_extent, btrfs_qgroup_trace_extent,
 
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_qgroup_extent_record *rec),
+		 const struct btrfs_qgroup_extent_record *rec,
+		 u64 bytenr),
 
-	TP_ARGS(fs_info, rec)
+	TP_ARGS(fs_info, rec, bytenr)
 );
 
 TRACE_EVENT(qgroup_num_dirty_extents,
@@ -2341,7 +2344,6 @@ DEFINE_BTRFS_LOCK_EVENT(btrfs_tree_read_unlock_blocking);
 DEFINE_BTRFS_LOCK_EVENT(btrfs_set_lock_blocking_read);
 DEFINE_BTRFS_LOCK_EVENT(btrfs_set_lock_blocking_write);
 DEFINE_BTRFS_LOCK_EVENT(btrfs_try_tree_read_lock);
-DEFINE_BTRFS_LOCK_EVENT(btrfs_try_tree_write_lock);
 DEFINE_BTRFS_LOCK_EVENT(btrfs_tree_read_lock_atomic);
 
 DECLARE_EVENT_CLASS(btrfs__space_info_update,
@@ -2553,10 +2555,9 @@ TRACE_EVENT(btrfs_extent_map_shrinker_count,
 
 TRACE_EVENT(btrfs_extent_map_shrinker_scan_enter,
 
-	TP_PROTO(const struct btrfs_fs_info *fs_info, long nr_to_scan, long nr,
-		 u64 last_root_id, u64 last_ino),
+	TP_PROTO(const struct btrfs_fs_info *fs_info, long nr),
 
-	TP_ARGS(fs_info, nr_to_scan, nr, last_root_id, last_ino),
+	TP_ARGS(fs_info, nr),
 
 	TP_STRUCT__entry_btrfs(
 		__field(	long,	nr_to_scan	)
@@ -2566,10 +2567,11 @@ TRACE_EVENT(btrfs_extent_map_shrinker_scan_enter,
 	),
 
 	TP_fast_assign_btrfs(fs_info,
-		__entry->nr_to_scan	= nr_to_scan;
+		__entry->nr_to_scan	= \
+		     atomic64_read(&fs_info->em_shrinker_nr_to_scan);
 		__entry->nr		= nr;
-		__entry->last_root_id	= last_root_id;
-		__entry->last_ino	= last_ino;
+		__entry->last_root_id	= fs_info->em_shrinker_last_root;
+		__entry->last_ino	= fs_info->em_shrinker_last_ino;
 	),
 
 	TP_printk_btrfs("nr_to_scan=%ld nr=%ld last_root=%llu(%s) last_ino=%llu",
@@ -2579,10 +2581,9 @@ TRACE_EVENT(btrfs_extent_map_shrinker_scan_enter,
 
 TRACE_EVENT(btrfs_extent_map_shrinker_scan_exit,
 
-	TP_PROTO(const struct btrfs_fs_info *fs_info, long nr_dropped, long nr,
-		 u64 last_root_id, u64 last_ino),
+	TP_PROTO(const struct btrfs_fs_info *fs_info, long nr_dropped, long nr),
 
-	TP_ARGS(fs_info, nr_dropped, nr, last_root_id, last_ino),
+	TP_ARGS(fs_info, nr_dropped, nr),
 
 	TP_STRUCT__entry_btrfs(
 		__field(	long,	nr_dropped	)
@@ -2594,8 +2595,8 @@ TRACE_EVENT(btrfs_extent_map_shrinker_scan_exit,
 	TP_fast_assign_btrfs(fs_info,
 		__entry->nr_dropped	= nr_dropped;
 		__entry->nr		= nr;
-		__entry->last_root_id	= last_root_id;
-		__entry->last_ino	= last_ino;
+		__entry->last_root_id	= fs_info->em_shrinker_last_root;
+		__entry->last_ino	= fs_info->em_shrinker_last_ino;
 	),
 
 	TP_printk_btrfs("nr_dropped=%ld nr=%ld last_root=%llu(%s) last_ino=%llu",