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writeback: remove writeback_control.more_io

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When wbc.more_io was first introduced, it indicates whether there are
at least one superblock whose s_more_io contains more IO work. Now with
the per-bdi writeback, it can be replaced with a simple b_more_io test.

Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
This commit is contained in:
Wu Fengguang
2010-07-21 22:19:51 -06:00
parent 3efaf0faba
commit b7a2441f99
4 changed files with 5 additions and 16 deletions
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6
include/trace/events/ext4.h
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@@ -404,7 +404,6 @@ TRACE_EVENT(ext4_da_writepages_result,
__field( int, pages_written )
__field( long, pages_skipped )
__field( int, sync_mode )
__field( char, more_io )
__field( pgoff_t, writeback_index )
),
@@ -415,16 +414,15 @@ TRACE_EVENT(ext4_da_writepages_result,
__entry->pages_written = pages_written;
__entry->pages_skipped = wbc->pages_skipped;
__entry->sync_mode = wbc->sync_mode;
__entry->more_io = wbc->more_io;
__entry->writeback_index = inode->i_mapping->writeback_index;
),
TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld "
" more_io %d sync_mode %d writeback_index %lu",
"sync_mode %d writeback_index %lu",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long) __entry->ino, __entry->ret,
__entry->pages_written, __entry->pages_skipped,
__entry->more_io, __entry->sync_mode,
__entry->sync_mode,
(unsigned long) __entry->writeback_index)
);