Merge tag 'xfs-for-linus-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pull xfs updates from Dave Chinner:
 "There is quite a varied bunch of stuff in this update, and some of it
  you will have already merged through the ext4 tree which imported the
  dax-4.10-iomap-pmd topic branch from the XFS tree.

  There is also a new direct IO implementation that uses the iomap
  infrastructure. It's much simpler, faster, and has lower IO latency
  than the existing direct IO infrastructure.

  Summary:
   - DAX PMD faults via iomap infrastructure
   - Direct-io support in iomap infrastructure
   - removal of now-redundant XFS inode iolock, replaced with VFS
     i_rwsem
   - synchronisation with fixes and changes in userspace libxfs code
   - extent tree lookup helpers
   - lots of little corruption detection improvements to verifiers
   - optimised CRC calculations
   - faster buffer cache lookups
   - deprecation of barrier/nobarrier mount options - we always use
     REQ_FUA/REQ_FLUSH where appropriate for data integrity now
   - cleanups to speculative preallocation
   - miscellaneous minor bug fixes and cleanups"

* tag 'xfs-for-linus-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (63 commits)
  xfs: nuke unused tracepoint definitions
  xfs: use GPF_NOFS when allocating btree cursors
  xfs: use xfs_vn_setattr_size to check on new size
  xfs: deprecate barrier/nobarrier mount option
  xfs: Always flush caches when integrity is required
  xfs: ignore leaf attr ichdr.count in verifier during log replay
  xfs: use rhashtable to track buffer cache
  xfs: optimise CRC updates
  xfs: make xfs btree stats less huge
  xfs: don't cap maximum dedupe request length
  xfs: don't allow di_size with high bit set
  xfs: error out if trying to add attrs and anextents > 0
  xfs: don't crash if reading a directory results in an unexpected hole
  xfs: complain if we don't get nextents bmap records
  xfs: check for bogus values in btree block headers
  xfs: forbid AG btrees with level == 0
  xfs: several xattr functions can be void
  xfs: handle cow fork in xfs_bmap_trace_exlist
  xfs: pass state not whichfork to trace_xfs_extlist
  xfs: Move AGI buffer type setting to xfs_read_agi
  ...

1 files changed, 17 insertions, 10 deletions

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index ade4691e3f74..eecbaac08eba 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -104,9 +104,6 @@ static const match_table_t tokens = {
 	{Opt_sysvgroups,"sysvgroups"},	/* group-ID from current process */
 	{Opt_allocsize,	"allocsize=%s"},/* preferred allocation size */
 	{Opt_norecovery,"norecovery"},	/* don't run XFS recovery */
-	{Opt_barrier,	"barrier"},	/* use writer barriers for log write and
-					 * unwritten extent conversion */
-	{Opt_nobarrier,	"nobarrier"},	/* .. disable */
 	{Opt_inode64,	"inode64"},	/* inodes can be allocated anywhere */
 	{Opt_inode32,   "inode32"},	/* inode allocation limited to
 					 * XFS_MAXINUMBER_32 */
@@ -134,6 +131,12 @@ static const match_table_t tokens = {
 	{Opt_nodiscard,	"nodiscard"},	/* Do not discard unused blocks */
 
 	{Opt_dax,	"dax"},		/* Enable direct access to bdev pages */
+
+	/* Deprecated mount options scheduled for removal */
+	{Opt_barrier,	"barrier"},	/* use writer barriers for log write and
+					 * unwritten extent conversion */
+	{Opt_nobarrier,	"nobarrier"},	/* .. disable */
+
 	{Opt_err,	NULL},
 };
 
@@ -301,12 +304,6 @@ xfs_parseargs(
 		case Opt_nouuid:
 			mp->m_flags |= XFS_MOUNT_NOUUID;
 			break;
-		case Opt_barrier:
-			mp->m_flags |= XFS_MOUNT_BARRIER;
-			break;
-		case Opt_nobarrier:
-			mp->m_flags &= ~XFS_MOUNT_BARRIER;
-			break;
 		case Opt_ikeep:
 			mp->m_flags |= XFS_MOUNT_IKEEP;
 			break;
@@ -374,6 +371,14 @@ xfs_parseargs(
 			mp->m_flags |= XFS_MOUNT_DAX;
 			break;
 #endif
+		case Opt_barrier:
+			xfs_warn(mp, "%s option is deprecated, ignoring.", p);
+			mp->m_flags |= XFS_MOUNT_BARRIER;
+			break;
+		case Opt_nobarrier:
+			xfs_warn(mp, "%s option is deprecated, ignoring.", p);
+			mp->m_flags &= ~XFS_MOUNT_BARRIER;
+			break;
 		default:
 			xfs_warn(mp, "unknown mount option [%s].", p);
 			return -EINVAL;
@@ -943,7 +948,7 @@ xfs_fs_destroy_inode(
 
 	trace_xfs_destroy_inode(ip);
 
-	ASSERT(!rwsem_is_locked(&ip->i_iolock.mr_lock));
+	ASSERT(!rwsem_is_locked(&inode->i_rwsem));
 	XFS_STATS_INC(ip->i_mount, vn_rele);
 	XFS_STATS_INC(ip->i_mount, vn_remove);
 
@@ -1238,9 +1243,11 @@ xfs_fs_remount(
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_barrier:
+			xfs_warn(mp, "%s option is deprecated, ignoring.", p);
 			mp->m_flags |= XFS_MOUNT_BARRIER;
 			break;
 		case Opt_nobarrier:
+			xfs_warn(mp, "%s option is deprecated, ignoring.", p);
 			mp->m_flags &= ~XFS_MOUNT_BARRIER;
 			break;
 		case Opt_inode64: