diff options
| author | Kent Overstreet <koverstreet@google.com> | 2013-06-05 13:24:39 (GMT) |
|---|---|---|
| committer | Kent Overstreet <koverstreet@google.com> | 2013-06-27 04:58:04 (GMT) |
| commit | 72c270612bd33192fa836ad0f2939af1ca218292 (patch) | |
| tree | 344129d75f3b5c0abcf77dd4b6340783a126cde8 /drivers/md/bcache/bcache.h | |
| parent | 279afbad4e54acbd61bf88a54a73af3bbfdeb5dd (diff) | |
| download | linux-72c270612bd33192fa836ad0f2939af1ca218292.tar.xz | |
bcache: Write out full stripes
Now that we're tracking dirty data per stripe, we can add two
optimizations for raid5/6:
* If a stripe is already dirty, force writes to that stripe to
writeback mode - to help build up full stripes of dirty data
* When flushing dirty data, preferentially write out full stripes first
if there are any.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Diffstat (limited to 'drivers/md/bcache/bcache.h')
| -rw-r--r-- | drivers/md/bcache/bcache.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index dbddef0..342ba86 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -387,8 +387,6 @@ struct keybuf_key { typedef bool (keybuf_pred_fn)(struct keybuf *, struct bkey *); struct keybuf { - keybuf_pred_fn *key_predicate; - struct bkey last_scanned; spinlock_t lock; @@ -532,6 +530,7 @@ struct cached_dev { unsigned sequential_merge:1; unsigned verify:1; + unsigned partial_stripes_expensive:1; unsigned writeback_metadata:1; unsigned writeback_running:1; unsigned char writeback_percent; |