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-rw-r--r--fs/fs-writeback.c2
-rw-r--r--include/linux/writeback.h1
-rw-r--r--mm/page-writeback.c9
3 files changed, 3 insertions, 9 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 0fca820..300324b 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -482,8 +482,6 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc)
if (wbc->nr_to_write <= 0)
break;
}
- if (!list_empty(&sb->s_more_io))
- wbc->more_io = 1;
return; /* Leave any unwritten inodes on s_io */
}
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index bef7d66..c6148bb 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -62,7 +62,6 @@ struct writeback_control {
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/mm/page-writeback.c b/mm/page-writeback.c
index d55cfca..3d3848f 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -558,7 +558,6 @@ static void background_writeout(unsigned long _min_pages)
global_page_state(NR_UNSTABLE_NFS) < background_thresh
&& min_pages <= 0)
break;
- wbc.more_io = 0;
wbc.encountered_congestion = 0;
wbc.nr_to_write = MAX_WRITEBACK_PAGES;
wbc.pages_skipped = 0;
@@ -566,9 +565,8 @@ static void background_writeout(unsigned long _min_pages)
min_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write;
if (wbc.nr_to_write > 0 || wbc.pages_skipped > 0) {
/* Wrote less than expected */
- if (wbc.encountered_congestion || wbc.more_io)
- congestion_wait(WRITE, HZ/10);
- else
+ congestion_wait(WRITE, HZ/10);
+ if (!wbc.encountered_congestion)
break;
}
}
@@ -633,12 +631,11 @@ static void wb_kupdate(unsigned long arg)
global_page_state(NR_UNSTABLE_NFS) +
(inodes_stat.nr_inodes - inodes_stat.nr_unused);
while (nr_to_write > 0) {
- wbc.more_io = 0;
wbc.encountered_congestion = 0;
wbc.nr_to_write = MAX_WRITEBACK_PAGES;
writeback_inodes(&wbc);
if (wbc.nr_to_write > 0) {
- if (wbc.encountered_congestion || wbc.more_io)
+ if (wbc.encountered_congestion)
congestion_wait(WRITE, HZ/10);
else
break; /* All the old data is written */
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