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authorPeng Tao <bergwolf@gmail.com>2012-09-25 14:55:57 +0800
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-10-08 19:32:22 -0400
commit6296556f0b31eaff29f2a3aee2c17b7eae895b98 (patch)
tree19f39cac9cff045e8c753ab8908deadc1c9c6bab /fs/nfs/direct.c
parent35754bc00e94e598c432ad02f7a3d3063c4402e3 (diff)
NFS41: send real write size in layoutget
For buffer write, block layout client scan inode mapping to find next hole and use offset-to-hole as layoutget length. Object layout client uses offset-to-isize as layoutget length. For direct write, both block layout and object layout use dreq->bytes_left. Signed-off-by: Peng Tao <tao.peng@emc.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/direct.c')
-rw-r--r--fs/nfs/direct.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 4be8673ee18..cae26cbd59e 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -46,6 +46,7 @@
#include <linux/kref.h>
#include <linux/slab.h>
#include <linux/task_io_accounting_ops.h>
+#include <linux/module.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
@@ -191,6 +192,12 @@ static void nfs_direct_req_release(struct nfs_direct_req *dreq)
kref_put(&dreq->kref, nfs_direct_req_free);
}
+ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq)
+{
+ return dreq->bytes_left;
+}
+EXPORT_SYMBOL_GPL(nfs_dreq_bytes_left);
+
/*
* Collects and returns the final error value/byte-count.
*/