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writeback: send work item to queue_io, move_expired_inodes

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Instead of sending ->older_than_this to queue_io() and
move_expired_inodes(), send the entire wb_writeback_work
structure.  There are other fields of a work item that are
useful in these routines and in tracepoints.

Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
This commit is contained in:
Curt Wohlgemuth
2011-10-07 21:51:56 -06:00
committed by Wu Fengguang
parent ece13ac31b
commit ad4e38dd6a
2 changed files with 11 additions and 10 deletions
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5
include/trace/events/writeback.h
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@@ -157,9 +157,9 @@ DEFINE_WBC_EVENT(wbc_writepage);
TRACE_EVENT(writeback_queue_io,
TP_PROTO(struct bdi_writeback *wb,
unsigned long *older_than_this,
struct wb_writeback_work *work,
int moved),
TP_ARGS(wb, older_than_this, moved),
TP_ARGS(wb, work, moved),
TP_STRUCT__entry(
__array(char, name, 32)
__field(unsigned long, older)
@@ -167,6 +167,7 @@ TRACE_EVENT(writeback_queue_io,
__field(int, moved)
),
TP_fast_assign(
unsigned long *older_than_this = work->older_than_this;
strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
__entry->older = older_than_this ? *older_than_this : 0;
__entry->age = older_than_this ?