Revert "writeback: ensure that WB_SYNC_NONE writeback with sb pinned is sync"
This reverts commit 7c8a3554c683f512dbcee26faedb42e4c05f12fa.
We are investigating a hang associated with the WB_SYNC_NONE changes,
so revert them for now.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 5c4161f..6753912 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -193,8 +193,7 @@
}
static void bdi_alloc_queue_work(struct backing_dev_info *bdi,
- struct wb_writeback_args *args,
- int wait)
+ struct wb_writeback_args *args)
{
struct bdi_work *work;
@@ -206,8 +205,6 @@
if (work) {
bdi_work_init(work, args);
bdi_queue_work(bdi, work);
- if (wait)
- bdi_wait_on_work_clear(work);
} else {
struct bdi_writeback *wb = &bdi->wb;
@@ -282,7 +279,7 @@
args.for_background = 1;
}
- bdi_alloc_queue_work(bdi, &args, sb_locked);
+ bdi_alloc_queue_work(bdi, &args);
}
/*
@@ -912,7 +909,6 @@
while ((work = get_next_work_item(bdi, wb)) != NULL) {
struct wb_writeback_args args = work->args;
- int post_clear;
/*
* Override sync mode, in case we must wait for completion
@@ -920,13 +916,11 @@
if (force_wait)
work->args.sync_mode = args.sync_mode = WB_SYNC_ALL;
- post_clear = WB_SYNC_ALL || args.sb_pinned;
-
/*
* If this isn't a data integrity operation, just notify
* that we have seen this work and we are now starting it.
*/
- if (!post_clear)
+ if (args.sync_mode == WB_SYNC_NONE)
wb_clear_pending(wb, work);
wrote += wb_writeback(wb, &args);
@@ -935,7 +929,7 @@
* This is a data integrity writeback, so only do the
* notification when we have completed the work.
*/
- if (post_clear)
+ if (args.sync_mode == WB_SYNC_ALL)
wb_clear_pending(wb, work);
}
@@ -1011,7 +1005,7 @@
if (!bdi_has_dirty_io(bdi))
continue;
- bdi_alloc_queue_work(bdi, &args, 0);
+ bdi_alloc_queue_work(bdi, &args);
}
rcu_read_unlock();