Merge commit 'v2.6.32-rc4' into perf/core

Merge reason: we were on an -rc1 base, merge up to -rc4.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 285 insertions, 4 deletions

diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index d86af94691c2..00405b5f624a 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -488,6 +488,39 @@ TRACE_EVENT(block_remap,
                   (unsigned long long)__entry->old_sector)
 );
 
+TRACE_EVENT(block_rq_remap,
+
+        TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
+                 sector_t from),
+
+        TP_ARGS(q, rq, dev, from),
+
+        TP_STRUCT__entry(
+                __field( dev_t,         dev             )
+                __field( sector_t,      sector          )
+                __field( unsigned int,  nr_sector       )
+                __field( dev_t,         old_dev         )
+                __field( sector_t,      old_sector      )
+                __array( char,          rwbs,   6       )
+        ),
+
+        TP_fast_assign(
+                __entry->dev            = disk_devt(rq->rq_disk);
+                __entry->sector         = blk_rq_pos(rq);
+                __entry->nr_sector      = blk_rq_sectors(rq);
+                __entry->old_dev        = dev;
+                __entry->old_sector     = from;
+                blk_fill_rwbs_rq(__entry->rwbs, rq);
+        ),
+
+        TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
+                  MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
+                  (unsigned long long)__entry->sector,
+                  __entry->nr_sector,
+                  MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
+                  (unsigned long long)__entry->old_sector)
+);
+
 #endif /* _TRACE_BLOCK_H */
 
 /* This part must be outside protection */
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 */