Signed-off-by: Peng Tao <tao.peng@xxxxxxx>
---
fs/nfs/blocklayout/blocklayout.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 7ae8a60..53cb450 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -996,6 +996,19 @@ bl_clear_layoutdriver(struct nfs_server *server)
return 0;
}
+static bool bl_dio_begin(struct inode *inode, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos,
+ struct blk_plug *plug)
+{
+ blk_start_plug(plug);
+ return true;
+}
+
+void bl_dio_end(struct blk_plug *plug)
+{
+ blk_finish_plug(plug);
+}
+
static const struct nfs_pageio_ops bl_pg_read_ops = {
.pg_init = pnfs_generic_pg_init_read,
.pg_test = pnfs_generic_pg_test,
@@ -1013,6 +1026,8 @@ static struct pnfs_layoutdriver_type blocklayout_type = {
.name = "LAYOUT_BLOCK_VOLUME",
.read_pagelist = bl_read_pagelist,
.write_pagelist = bl_write_pagelist,
+ .dio_begin = bl_dio_begin,
+ .dio_end = bl_dio_end,
.alloc_layout_hdr = bl_alloc_layout_hdr,
.free_layout_hdr = bl_free_layout_hdr,
.alloc_lseg = bl_alloc_lseg,
--
1.7.1.262.g5ef3d
--
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