diff options
| author | Kent Overstreet <kmo@daterainc.com> | 2013-07-11 03:44:40 +0200 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2013-07-12 09:22:46 +0200 |
| commit | 54d12f2b4fd0f218590d1490b41a18d0e2328a9a (patch) | |
| tree | 2a7eb0a2749191087c120ae1eda0e73cabf4af34 /drivers/md | |
| parent | bcache: check for allocation failures (diff) | |
| download | linux-54d12f2b4fd0f218590d1490b41a18d0e2328a9a.tar.xz linux-54d12f2b4fd0f218590d1490b41a18d0e2328a9a.zip | |
bcache: Advertise that flushes are supported
Whoops - bcache's flush/FUA was mostly correct, but flushes get filtered
out unless we say we support them...
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/request.c | 8 | ||||
| -rw-r--r-- | drivers/md/bcache/super.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index b6e74d3c8faf..786a1a4f74d8 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -488,6 +488,12 @@ static void bch_insert_data_loop(struct closure *cl) bch_queue_gc(op->c); } + /* + * Journal writes are marked REQ_FLUSH; if the original write was a + * flush, it'll wait on the journal write. + */ + bio->bi_rw &= ~(REQ_FLUSH|REQ_FUA); + do { unsigned i; struct bkey *k; @@ -710,7 +716,7 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d) s->task = current; s->orig_bio = bio; s->write = (bio->bi_rw & REQ_WRITE) != 0; - s->op.flush_journal = (bio->bi_rw & REQ_FLUSH) != 0; + s->op.flush_journal = (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0; s->op.skip = (bio->bi_rw & REQ_DISCARD) != 0; s->recoverable = 1; s->start_time = jiffies; diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index cff2d182dfb0..728fdc673f31 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -806,6 +806,8 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size, set_bit(QUEUE_FLAG_NONROT, &d->disk->queue->queue_flags); set_bit(QUEUE_FLAG_DISCARD, &d->disk->queue->queue_flags); + blk_queue_flush(q, REQ_FLUSH|REQ_FUA); + return 0; } |