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bcache: FUA fixes

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Journal writes need to be marked FUA, not just REQ_FLUSH. And btree node
writes have... weird ordering requirements.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
This commit is contained in:
Kent Overstreet
2013-06-26 17:25:38 -07:00
committed by Kent Overstreet
parent cecd628d9a
commit e49c7c374e
3 changed files with 35 additions and 5 deletions
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drivers/md/bcache/journal.c
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@@ -620,7 +620,7 @@ static void journal_write_unlocked(struct closure *cl)
bio_reset(bio);
bio->bi_sector = PTR_OFFSET(k, i);
bio->bi_bdev = ca->bdev;
bio->bi_rw = REQ_WRITE|REQ_SYNC|REQ_META|REQ_FLUSH;
bio->bi_rw = REQ_WRITE|REQ_SYNC|REQ_META|REQ_FLUSH|REQ_FUA;
bio->bi_size = sectors << 9;
bio->bi_end_io = journal_write_endio;