Merge tag 'xfs-5.1-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "Here are a number of new features and bug fixes for 5.1

  They've undergone a week's worth of fstesting and merge cleanly with
  master as of this morning

  Most of the changes center on improving metadata validation and fixing
  problems with online fsck, though there's also a new cache to speed up
  unlinked inode handling and cleanup of the copy on write code in
  preparation for future features

  Changes for Linux 5.1:

   - Fix online fsck to handle inode btrees correctly on 64k block
     filesystems

   - Teach online fsck to check directory and attribute names for
     invalid characters

   - Miscellanous fixes for online fsck

   - Introduce a new panic mask so that we can halt immediately on
     metadata corruption (for debugging purposes)

   - Fix a block mapping race during writeback

   - Cache unlinked inode list backrefs in memory to speed up list
     processing

   - Separate the bnobt/cntbt and inobt/finobt buffer verifiers so that
     we can detect crosslinked btrees

   - Refactor magic number verification so that we can standardize it

   - Strengthen ondisk metadata structure offset build time verification

   - Fix a memory corruption problem in the listxattr code

   - Fix a shutdown problem during log recovery due to unreserved finobt
     expansion

   - Fix a referential integrity problem where O_TMPFILE inodes were put
     on the unlinked list with nlink > 0 which would cause asserts
     during log recovery if the system went down immediately

   - Refactor the delayed allocation allocator to be more clever about
     the possibility that its mapping might be stale

   - Various fixes to the copy on write mechanism

   - Make CoW preallocation suitable for use even with writes that
     wouldn't otherwise require it

   - Refactor an internal API

   - Fix some statx implementation bugs

   - Fix miscellaneous compiler and static checker complaints"

* tag 'xfs-5.1-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (70 commits)
  xfs: fix reporting supported extra file attributes for statx()
  xfs: fix backwards endian conversion in scrub
  xfs: fix uninitialized error variables
  xfs: rework breaking of shared extents in xfs_file_iomap_begin
  xfs: don't pass iomap flags to xfs_reflink_allocate_cow
  xfs: fix uninitialized error variable
  xfs: introduce an always_cow mode
  xfs: report IOMAP_F_SHARED from xfs_file_iomap_begin_delay
  xfs: make COW fork unwritten extent conversions more robust
  xfs: merge COW handling into xfs_file_iomap_begin_delay
  xfs: also truncate holes covered by COW blocks
  xfs: don't use delalloc extents for COW on files with extsize hints
  xfs: fix SEEK_DATA for speculative COW fork preallocation
  xfs: make xfs_bmbt_to_iomap more useful
  xfs: fix xfs_buf magic number endian checks
  xfs: retry COW fork delalloc conversion when no extent was found
  xfs: remove the truncate short cut in xfs_map_blocks
  xfs: move xfs_iomap_write_allocate to xfs_aops.c
  xfs: move stat accounting to xfs_bmapi_convert_delalloc
  xfs: move transaction handling to xfs_bmapi_convert_delalloc
  ..

1 files changed, 2 insertions, 22 deletions

diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h
index e5c23948a8ab..6c2615b83c5d 100644
--- a/fs/xfs/xfs_aops.h
+++ b/fs/xfs/xfs_aops.h
@@ -9,32 +9,12 @@
 extern struct bio_set xfs_ioend_bioset;
 
 /*
- * Types of I/O for bmap clustering and I/O completion tracking.
- *
- * This enum is used in string mapping in xfs_trace.h; please keep the
- * TRACE_DEFINE_ENUMs for it up to date.
- */
-enum {
-	XFS_IO_HOLE,		/* covers region without any block allocation */
-	XFS_IO_DELALLOC,	/* covers delalloc region */
-	XFS_IO_UNWRITTEN,	/* covers allocated but uninitialized data */
-	XFS_IO_OVERWRITE,	/* covers already allocated extent */
-	XFS_IO_COW,		/* covers copy-on-write extent */
-};
-
-#define XFS_IO_TYPES \
-	{ XFS_IO_HOLE,			"hole" },	\
-	{ XFS_IO_DELALLOC,		"delalloc" },	\
-	{ XFS_IO_UNWRITTEN,		"unwritten" },	\
-	{ XFS_IO_OVERWRITE,		"overwrite" },	\
-	{ XFS_IO_COW,			"CoW" }
-
-/*
  * Structure for buffered I/O completions.
  */
 struct xfs_ioend {
 	struct list_head	io_list;	/* next ioend in chain */
-	unsigned int		io_type;	/* delalloc / unwritten */
+	int			io_fork;	/* inode fork written back */
+	xfs_exntst_t		io_state;	/* extent state */
 	struct inode		*io_inode;	/* file being written to */
 	size_t			io_size;	/* size of the extent */
 	xfs_off_t		io_offset;	/* offset in the file */