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ac580e0
2012 May 16
0
[RESEND PATCH] Btrfs: set ioprio of scrub readahead to idle
...TR 8
#define BTRFS_FT_MAX 9
+/* ioprio of readahead is set to idle */
+#define BTRFS_IOPRIO_READA (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0))
+
/*
* The key defines the order in the tree, and so it also defines (optimal)
* block layout.
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index ac5d010..48a4882 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -718,13 +718,18 @@ static void reada_start_machine_worker(struct btrfs_work *work)
{
struct reada_machine_work *rmw;
struct btrfs_fs_info *fs_info;
+ int old_ioprio;
rmw = container_of(work, struct reada_machine_work, work);...