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authorDavid S. Miller <davem@davemloft.net>2012-04-10 14:30:45 -0400
committerDavid S. Miller <davem@davemloft.net>2012-04-10 14:30:45 -0400
commit06eb4eafbdc0796d741d139a44f1253278da8611 (patch)
treefbdb44317130c371928154c9e6903e699fe2b995 /drivers/md/dm-bufio.h
parent32ed53b83ea5ec26a4dba90e18f5e0ff6c71eb48 (diff)
parentf68e556e23d1a4176b563bcb25d8baf2c5313f91 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/md/dm-bufio.h')
-rw-r--r--drivers/md/dm-bufio.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/dm-bufio.h b/drivers/md/dm-bufio.h
index 5c4c3a04e38..b142946a9e3 100644
--- a/drivers/md/dm-bufio.h
+++ b/drivers/md/dm-bufio.h
@@ -63,6 +63,14 @@ void *dm_bufio_new(struct dm_bufio_client *c, sector_t block,
struct dm_buffer **bp);
/*
+ * Prefetch the specified blocks to the cache.
+ * The function starts to read the blocks and returns without waiting for
+ * I/O to finish.
+ */
+void dm_bufio_prefetch(struct dm_bufio_client *c,
+ sector_t block, unsigned n_blocks);
+
+/*
* Release a reference obtained with dm_bufio_{read,get,new}. The data
* pointer and dm_buffer pointer is no longer valid after this call.
*/