Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

Pull btrfs update from Chris Mason:
 "This is a large pull, with the bulk of the updates coming from:

   - Hole punching

   - send/receive fixes

   - fsync performance

   - Disk format extension allowing more hardlinks inside a single
     directory (btrfs-progs patch required to enable the compat bit for
     this one)

  I'm cooking more unrelated RAID code, but I wanted to make sure this
  original batch makes it in.  The largest updates here are relatively
  old and have been in testing for some time."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (121 commits)
  btrfs: init ref_index to zero in add_inode_ref
  Btrfs: remove repeated eb->pages check in, disk-io.c/csum_dirty_buffer
  Btrfs: fix page leakage
  Btrfs: do not warn_on when we cannot alloc a page for an extent buffer
  Btrfs: don't bug on enomem in readpage
  Btrfs: cleanup pages properly when ENOMEM in compression
  Btrfs: make filesystem read-only when submitting barrier fails
  Btrfs: detect corrupted filesystem after write I/O errors
  Btrfs: make compress and nodatacow mount options mutually exclusive
  btrfs: fix message printing
  Btrfs: don't bother committing delayed inode updates when fsyncing
  btrfs: move inline function code to header file
  Btrfs: remove unnecessary IS_ERR in bio_readpage_error()
  btrfs: remove unused function btrfs_insert_some_items()
  Btrfs: don't commit instead of overcommitting
  Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called
  Btrfs: be smarter about dropping things from the tree log
  Btrfs: don't lookup csums for prealloc extents
  Btrfs: cache extent state when writing out dirty metadata pages
  Btrfs: do not hold the file extent leaf locked when adding extent item
  ...

1 files changed, 10 insertions, 4 deletions

diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 91b91e805673..54fab041b22a 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -445,6 +445,7 @@ TRACE_EVENT(btrfs_delayed_tree_ref,
                 __field(        u64,  ref_root          )
                 __field(        int,  level             )
                 __field(        int,  type              )
+                __field(        u64,  seq               )
         ),
 
         TP_fast_assign(
@@ -455,17 +456,19 @@ TRACE_EVENT(btrfs_delayed_tree_ref,
                 __entry->ref_root       = full_ref->root;
                 __entry->level          = full_ref->level;
                 __entry->type           = ref->type;
+                __entry->seq            = ref->seq;
         ),
 
         TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
                   "parent = %llu(%s), ref_root = %llu(%s), level = %d, "
-                  "type = %s",
+                  "type = %s, seq = %llu",
                   (unsigned long long)__entry->bytenr,
                   (unsigned long long)__entry->num_bytes,
                   show_ref_action(__entry->action),
                   show_root_type(__entry->parent),
                   show_root_type(__entry->ref_root),
-                  __entry->level, show_ref_type(__entry->type))
+                  __entry->level, show_ref_type(__entry->type),
+                  (unsigned long long)__entry->seq)
 );
 
 TRACE_EVENT(btrfs_delayed_data_ref,
@@ -485,6 +488,7 @@ TRACE_EVENT(btrfs_delayed_data_ref,
                 __field(        u64,  owner             )
                 __field(        u64,  offset            )
                 __field(        int,  type              )
+                __field(        u64,  seq               )
         ),
 
         TP_fast_assign(
@@ -496,11 +500,12 @@ TRACE_EVENT(btrfs_delayed_data_ref,
                 __entry->owner          = full_ref->objectid;
                 __entry->offset         = full_ref->offset;
                 __entry->type           = ref->type;
+                __entry->seq            = ref->seq;
         ),
 
         TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
                   "parent = %llu(%s), ref_root = %llu(%s), owner = %llu, "
-                  "offset = %llu, type = %s",
+                  "offset = %llu, type = %s, seq = %llu",
                   (unsigned long long)__entry->bytenr,
                   (unsigned long long)__entry->num_bytes,
                   show_ref_action(__entry->action),
@@ -508,7 +513,8 @@ TRACE_EVENT(btrfs_delayed_data_ref,
                   show_root_type(__entry->ref_root),
                   (unsigned long long)__entry->owner,
                   (unsigned long long)__entry->offset,
-                  show_ref_type(__entry->type))
+                  show_ref_type(__entry->type),
+                  (unsigned long long)__entry->seq)
 );
 
 TRACE_EVENT(btrfs_delayed_ref_head,