Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Fix time encoding with extra epoch bits
  ext4: Add a stub for mpage_da_data in the trace header
  jbd2: Use tracepoints for history file
  ext4: Use tracepoints for mb_history trace file
  ext4, jbd2: Drop unneeded printks at mount and unmount time
  ext4: Handle nested ext4_journal_start/stop calls without a journal
  ext4: Make sure ext4_dirty_inode() updates the inode in no journal mode
  ext4: Avoid updating the inode table bh twice in no journal mode
  ext4: EXT4_IOC_MOVE_EXT: Check for different original and donor inodes first
  ext4: async direct IO for holes and fallocate support
  ext4: Use end_io callback to avoid direct I/O fallback to buffered I/O
  ext4: Split uninitialized extents for direct I/O
  ext4: release reserved quota when block reservation for delalloc retry
  ext4: Adjust ext4_da_writepages() to write out larger contiguous chunks
  ext4: Fix hueristic which avoids group preallocation for closed files
  ext4: Use ext4_msg() for ext4_da_writepage() errors
  ext4: Update documentation about quota mount options

3 files changed, 259 insertions, 24 deletions

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 52695d3dfd0b..f1011f7f3d41 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -464,9 +464,9 @@ struct handle_s
  */
 struct transaction_chp_stats_s {
         unsigned long           cs_chp_time;
-        unsigned long           cs_forced_to_close;
-        unsigned long           cs_written;
-        unsigned long           cs_dropped;
+        __u32                   cs_forced_to_close;
+        __u32                   cs_written;
+        __u32                   cs_dropped;
 };
 
 /* The transaction_t type is the guts of the journaling mechanism.  It
@@ -668,23 +668,16 @@ struct transaction_run_stats_s {
         unsigned long           rs_flushing;
         unsigned long           rs_logging;
 
-        unsigned long           rs_handle_count;
-        unsigned long           rs_blocks;
-        unsigned long           rs_blocks_logged;
+        __u32                   rs_handle_count;
+        __u32                   rs_blocks;
+        __u32                   rs_blocks_logged;
 };
 
 struct transaction_stats_s {
-        int                     ts_type;
         unsigned long           ts_tid;
-        union {
-                struct transaction_run_stats_s run;
-                struct transaction_chp_stats_s chp;
-        } u;
+        struct transaction_run_stats_s run;
 };
 
-#define JBD2_STATS_RUN          1
-#define JBD2_STATS_CHECKPOINT   2
-
 static inline unsigned long
 jbd2_time_diff(unsigned long start, unsigned long end)
 {
@@ -988,12 +981,6 @@ struct journal_s
         /*
          * Journal statistics
          */
-        struct transaction_stats_s *j_history;
-        int                     j_history_max;
-        int                     j_history_cur;
-        /*
-         * Protect the transactions statistics history
-         */
         spinlock_t              j_history_lock;
         struct proc_dir_entry   *j_proc_entry;
         struct transaction_stats_s j_stats;
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index c1bd8f1e8b94..d09550bf3f95 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -11,6 +11,7 @@ struct ext4_allocation_context;
 struct ext4_allocation_request;
 struct ext4_prealloc_space;
 struct ext4_inode_info;
+struct mpage_da_data;
 
 #define EXT4_I(inode) (container_of(inode, struct ext4_inode_info, vfs_inode))
 
@@ -236,6 +237,7 @@ TRACE_EVENT(ext4_da_writepages,
                 __field(        char,   for_kupdate             )
                 __field(        char,   for_reclaim             )
                 __field(        char,   range_cyclic            )
+                __field(       pgoff_t, writeback_index         )
         ),
 
         TP_fast_assign(
@@ -249,15 +251,17 @@ TRACE_EVENT(ext4_da_writepages,
                 __entry->for_kupdate    = wbc->for_kupdate;
                 __entry->for_reclaim    = wbc->for_reclaim;
                 __entry->range_cyclic   = wbc->range_cyclic;
+                __entry->writeback_index = inode->i_mapping->writeback_index;
         ),
 
-        TP_printk("dev %s ino %lu nr_to_write %ld pages_skipped %ld range_start %llu range_end %llu nonblocking %d for_kupdate %d for_reclaim %d range_cyclic %d",
+        TP_printk("dev %s ino %lu nr_to_write %ld pages_skipped %ld range_start %llu range_end %llu nonblocking %d for_kupdate %d for_reclaim %d range_cyclic %d writeback_index %lu",
                   jbd2_dev_to_name(__entry->dev),
                   (unsigned long) __entry->ino, __entry->nr_to_write,
                   __entry->pages_skipped, __entry->range_start,
                   __entry->range_end, __entry->nonblocking,
                   __entry->for_kupdate, __entry->for_reclaim,
-                  __entry->range_cyclic)
+                  __entry->range_cyclic,
+                  (unsigned long) __entry->writeback_index)
 );
 
 TRACE_EVENT(ext4_da_write_pages,
@@ -309,6 +313,7 @@ TRACE_EVENT(ext4_da_writepages_result,
                 __field(        char,   encountered_congestion  )
                 __field(        char,   more_io                 )       
                 __field(        char,   no_nrwrite_index_update )
+                __field(       pgoff_t, writeback_index         )
         ),
 
         TP_fast_assign(
@@ -320,14 +325,16 @@ TRACE_EVENT(ext4_da_writepages_result,
                 __entry->encountered_congestion = wbc->encountered_congestion;
                 __entry->more_io        = wbc->more_io;
                 __entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update;
+                __entry->writeback_index = inode->i_mapping->writeback_index;
         ),
 
-        TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld congestion %d more_io %d no_nrwrite_index_update %d",
+        TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld congestion %d more_io %d no_nrwrite_index_update %d writeback_index %lu",
                   jbd2_dev_to_name(__entry->dev),
                   (unsigned long) __entry->ino, __entry->ret,
                   __entry->pages_written, __entry->pages_skipped,
                   __entry->encountered_congestion, __entry->more_io,
-                  __entry->no_nrwrite_index_update)
+                  __entry->no_nrwrite_index_update,
+                  (unsigned long) __entry->writeback_index)
 );
 
 TRACE_EVENT(ext4_da_write_begin,
@@ -737,6 +744,169 @@ TRACE_EVENT(ext4_alloc_da_blocks,
                   __entry->data_blocks, __entry->meta_blocks)
 );
 
+TRACE_EVENT(ext4_mballoc_alloc,
+        TP_PROTO(struct ext4_allocation_context *ac),
+
+        TP_ARGS(ac),
+
+        TP_STRUCT__entry(
+                __field(        dev_t,  dev                     )
+                __field(        ino_t,  ino                     )
+                __field(        __u16,  found                   )
+                __field(        __u16,  groups                  )
+                __field(        __u16,  buddy                   )
+                __field(        __u16,  flags                   )
+                __field(        __u16,  tail                    )
+                __field(        __u8,   cr                      )
+                __field(        __u32,  orig_logical            )
+                __field(          int,  orig_start              )
+                __field(        __u32,  orig_group              )
+                __field(          int,  orig_len                )
+                __field(        __u32,  goal_logical            )
+                __field(          int,  goal_start              )
+                __field(        __u32,  goal_group              )
+                __field(          int,  goal_len                )
+                __field(        __u32,  result_logical          )
+                __field(          int,  result_start            )
+                __field(        __u32,  result_group            )
+                __field(          int,  result_len              )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = ac->ac_inode->i_sb->s_dev;
+                __entry->ino            = ac->ac_inode->i_ino;
+                __entry->found          = ac->ac_found;
+                __entry->flags          = ac->ac_flags;
+                __entry->groups         = ac->ac_groups_scanned;
+                __entry->buddy          = ac->ac_buddy;
+                __entry->tail           = ac->ac_tail;
+                __entry->cr             = ac->ac_criteria;
+                __entry->orig_logical   = ac->ac_o_ex.fe_logical;
+                __entry->orig_start     = ac->ac_o_ex.fe_start;
+                __entry->orig_group     = ac->ac_o_ex.fe_group;
+                __entry->orig_len       = ac->ac_o_ex.fe_len;
+                __entry->goal_logical   = ac->ac_g_ex.fe_logical;
+                __entry->goal_start     = ac->ac_g_ex.fe_start;
+                __entry->goal_group     = ac->ac_g_ex.fe_group;
+                __entry->goal_len       = ac->ac_g_ex.fe_len;
+                __entry->result_logical = ac->ac_f_ex.fe_logical;
+                __entry->result_start   = ac->ac_f_ex.fe_start;
+                __entry->result_group   = ac->ac_f_ex.fe_group;
+                __entry->result_len     = ac->ac_f_ex.fe_len;
+        ),
+
+        TP_printk("dev %s inode %lu orig %u/%d/%u@%u goal %u/%d/%u@%u "
+                  "result %u/%d/%u@%u blks %u grps %u cr %u flags 0x%04x "
+                  "tail %u broken %u",
+                  jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
+                  __entry->orig_group, __entry->orig_start,
+                  __entry->orig_len, __entry->orig_logical,
+                  __entry->goal_group, __entry->goal_start,
+                  __entry->goal_len, __entry->goal_logical,
+                  __entry->result_group, __entry->result_start,
+                  __entry->result_len, __entry->result_logical,
+                  __entry->found, __entry->groups, __entry->cr,
+                  __entry->flags, __entry->tail,
+                  __entry->buddy ? 1 << __entry->buddy : 0)
+);
+
+TRACE_EVENT(ext4_mballoc_prealloc,
+        TP_PROTO(struct ext4_allocation_context *ac),
+
+        TP_ARGS(ac),
+
+        TP_STRUCT__entry(
+                __field(        dev_t,  dev                     )
+                __field(        ino_t,  ino                     )
+                __field(        __u32,  orig_logical            )
+                __field(          int,  orig_start              )
+                __field(        __u32,  orig_group              )
+                __field(          int,  orig_len                )
+                __field(        __u32,  result_logical          )
+                __field(          int,  result_start            )
+                __field(        __u32,  result_group            )
+                __field(          int,  result_len              )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = ac->ac_inode->i_sb->s_dev;
+                __entry->ino            = ac->ac_inode->i_ino;
+                __entry->orig_logical   = ac->ac_o_ex.fe_logical;
+                __entry->orig_start     = ac->ac_o_ex.fe_start;
+                __entry->orig_group     = ac->ac_o_ex.fe_group;
+                __entry->orig_len       = ac->ac_o_ex.fe_len;
+                __entry->result_logical = ac->ac_b_ex.fe_logical;
+                __entry->result_start   = ac->ac_b_ex.fe_start;
+                __entry->result_group   = ac->ac_b_ex.fe_group;
+                __entry->result_len     = ac->ac_b_ex.fe_len;
+        ),
+
+        TP_printk("dev %s inode %lu orig %u/%d/%u@%u result %u/%d/%u@%u",
+                  jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
+                  __entry->orig_group, __entry->orig_start,
+                  __entry->orig_len, __entry->orig_logical,
+                  __entry->result_group, __entry->result_start,
+                  __entry->result_len, __entry->result_logical)
+);
+
+TRACE_EVENT(ext4_mballoc_discard,
+        TP_PROTO(struct ext4_allocation_context *ac),
+
+        TP_ARGS(ac),
+
+        TP_STRUCT__entry(
+                __field(        dev_t,  dev                     )
+                __field(        ino_t,  ino                     )
+                __field(        __u32,  result_logical          )
+                __field(          int,  result_start            )
+                __field(        __u32,  result_group            )
+                __field(          int,  result_len              )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = ac->ac_inode->i_sb->s_dev;
+                __entry->ino            = ac->ac_inode->i_ino;
+                __entry->result_logical = ac->ac_b_ex.fe_logical;
+                __entry->result_start   = ac->ac_b_ex.fe_start;
+                __entry->result_group   = ac->ac_b_ex.fe_group;
+                __entry->result_len     = ac->ac_b_ex.fe_len;
+        ),
+
+        TP_printk("dev %s inode %lu extent %u/%d/%u@%u ",
+                  jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
+                  __entry->result_group, __entry->result_start,
+                  __entry->result_len, __entry->result_logical)
+);
+
+TRACE_EVENT(ext4_mballoc_free,
+        TP_PROTO(struct ext4_allocation_context *ac),
+
+        TP_ARGS(ac),
+
+        TP_STRUCT__entry(
+                __field(        dev_t,  dev                     )
+                __field(        ino_t,  ino                     )
+                __field(        __u32,  result_logical          )
+                __field(          int,  result_start            )
+                __field(        __u32,  result_group            )
+                __field(          int,  result_len              )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = ac->ac_inode->i_sb->s_dev;
+                __entry->ino            = ac->ac_inode->i_ino;
+                __entry->result_logical = ac->ac_b_ex.fe_logical;
+                __entry->result_start   = ac->ac_b_ex.fe_start;
+                __entry->result_group   = ac->ac_b_ex.fe_group;
+                __entry->result_len     = ac->ac_b_ex.fe_len;
+        ),
+
+        TP_printk("dev %s inode %lu extent %u/%d/%u@%u ",
+                  jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
+                  __entry->result_group, __entry->result_start,
+                  __entry->result_len, __entry->result_logical)
+);
+
 #endif /* _TRACE_EXT4_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index b851f0b4701c..3c60b75adb9e 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -7,6 +7,9 @@
 #include <linux/jbd2.h>
 #include <linux/tracepoint.h>
 
+struct transaction_chp_stats_s;
+struct transaction_run_stats_s;
+
 TRACE_EVENT(jbd2_checkpoint,
 
         TP_PROTO(journal_t *journal, int result),
@@ -162,6 +165,81 @@ TRACE_EVENT(jbd2_submit_inode_data,
                   jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino)
 );
 
+TRACE_EVENT(jbd2_run_stats,
+        TP_PROTO(dev_t dev, unsigned long tid,
+                 struct transaction_run_stats_s *stats),
+
+        TP_ARGS(dev, tid, stats),
+
+        TP_STRUCT__entry(
+                __field(                dev_t,  dev             )
+                __field(        unsigned long,  tid             )
+                __field(        unsigned long,  wait            )
+                __field(        unsigned long,  running         )
+                __field(        unsigned long,  locked          )
+                __field(        unsigned long,  flushing        )
+                __field(        unsigned long,  logging         )
+                __field(                __u32,  handle_count    )
+                __field(                __u32,  blocks          )
+                __field(                __u32,  blocks_logged   )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = dev;
+                __entry->tid            = tid;
+                __entry->wait           = stats->rs_wait;
+                __entry->running        = stats->rs_running;
+                __entry->locked         = stats->rs_locked;
+                __entry->flushing       = stats->rs_flushing;
+                __entry->logging        = stats->rs_logging;
+                __entry->handle_count   = stats->rs_handle_count;
+                __entry->blocks         = stats->rs_blocks;
+                __entry->blocks_logged  = stats->rs_blocks_logged;
+        ),
+
+        TP_printk("dev %s tid %lu wait %u running %u locked %u flushing %u "
+                  "logging %u handle_count %u blocks %u blocks_logged %u",
+                  jbd2_dev_to_name(__entry->dev), __entry->tid,
+                  jiffies_to_msecs(__entry->wait),
+                  jiffies_to_msecs(__entry->running),
+                  jiffies_to_msecs(__entry->locked),
+                  jiffies_to_msecs(__entry->flushing),
+                  jiffies_to_msecs(__entry->logging),
+                  __entry->handle_count, __entry->blocks,
+                  __entry->blocks_logged)
+);
+
+TRACE_EVENT(jbd2_checkpoint_stats,
+        TP_PROTO(dev_t dev, unsigned long tid,
+                 struct transaction_chp_stats_s *stats),
+
+        TP_ARGS(dev, tid, stats),
+
+        TP_STRUCT__entry(
+                __field(                dev_t,  dev             )
+                __field(        unsigned long,  tid             )
+                __field(        unsigned long,  chp_time        )
+                __field(                __u32,  forced_to_close )
+                __field(                __u32,  written         )
+                __field(                __u32,  dropped         )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = dev;
+                __entry->tid            = tid;
+                __entry->chp_time       = stats->cs_chp_time;
+                __entry->forced_to_close= stats->cs_forced_to_close;
+                __entry->written        = stats->cs_written;
+                __entry->dropped        = stats->cs_dropped;
+        ),
+
+        TP_printk("dev %s tid %lu chp_time %u forced_to_close %u "
+                  "written %u dropped %u",
+                  jbd2_dev_to_name(__entry->dev), __entry->tid,
+                  jiffies_to_msecs(__entry->chp_time),
+                  __entry->forced_to_close, __entry->written, __entry->dropped)
+);
+
 #endif /* _TRACE_JBD2_H */
 
 /* This part must be outside protection */