writeback: get rid of wbc->for_writepages

It's only set, it's never checked. Kill it.

Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 2 insertions, 5 deletions

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d347632f1861..48a054e2b716 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -50,7 +50,6 @@ struct writeback_control {
         unsigned encountered_congestion:1; /* An output: a queue is full */
         unsigned for_kupdate:1;         /* A kupdate writeback */
         unsigned for_reclaim:1;         /* Invoked from the page allocator */
-        unsigned for_writepages:1;      /* This is a writepages() call */
         unsigned range_cyclic:1;        /* range_start is cyclic */
         unsigned more_io:1;             /* more io to be dispatched */
         /*
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 7d8b5bc74185..8d433c4e3709 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -227,7 +227,6 @@ TRACE_EVENT(ext4_da_writepages,
                 __field(        char,   nonblocking             )
                 __field(        char,   for_kupdate             )
                 __field(        char,   for_reclaim             )
-                __field(        char,   for_writepages          )
                 __field(        char,   range_cyclic            )
         ),
 
@@ -241,16 +240,15 @@ TRACE_EVENT(ext4_da_writepages,
                 __entry->nonblocking    = wbc->nonblocking;
                 __entry->for_kupdate    = wbc->for_kupdate;
                 __entry->for_reclaim    = wbc->for_reclaim;
-                __entry->for_writepages = wbc->for_writepages;
                 __entry->range_cyclic   = wbc->range_cyclic;
         ),
 
-        TP_printk("dev %s ino %lu nr_t_write %ld pages_skipped %ld range_start %llu range_end %llu nonblocking %d for_kupdate %d for_reclaim %d for_writepages %d range_cyclic %d",
+        TP_printk("dev %s ino %lu nr_t_write %ld pages_skipped %ld range_start %llu range_end %llu nonblocking %d for_kupdate %d for_reclaim %d range_cyclic %d",
                   jbd2_dev_to_name(__entry->dev), __entry->ino, __entry->nr_to_write,
                   __entry->pages_skipped, __entry->range_start,
                   __entry->range_end, __entry->nonblocking,
                   __entry->for_kupdate, __entry->for_reclaim,
-                  __entry->for_writepages, __entry->range_cyclic)
+                  __entry->range_cyclic)
 );
 
 TRACE_EVENT(ext4_da_writepages_result,