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[3/8] writeback: use WRITE_BG for kupdate and background writeback

Message ID 1472663151-18560-4-git-send-email-axboe@fb.com
State New, archived
Headers show

Commit Message

Jens Axboe Aug. 31, 2016, 5:05 p.m. UTC
If we're doing background type writes, then use the appropriate
write command for that.

Signed-off-by: Jens Axboe <axboe@fb.com>
---
 include/linux/writeback.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index e1fc25172397..7fb80c78f159 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -104,6 +104,8 @@  static inline int wbc_to_write_flags(struct writeback_control *wbc)
 {
 	if (wbc->sync_mode == WB_SYNC_ALL)
 		return WRITE_SYNC;
+	else if (wbc->for_kupdate || wbc->for_background)
+		return WRITE_BG;
 
 	return WRITE;
 }