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authorAl Viro <viro@zeniv.linux.org.uk>2014-03-04 22:38:00 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-06 17:32:45 -0400
commita6cbcd4a4a85e2fdb0b3344b88df2e8b3d526b9e (patch)
treec0f054759a0b9c26881109968ad018fe759af458 /fs/nfs/direct.c
parent16b1f05d7f5ab4ce570963aca5f3b2b5d21822fa (diff)
get rid of pointless iov_length() in ->direct_IO()
all callers have iov_length(iter->iov, iter->nr_segs) == iov_iter_count(iter) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfs/direct.c')
-rw-r--r--fs/nfs/direct.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 21723149668..1d34f454989 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -486,9 +486,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter,
struct nfs_direct_req *dreq;
struct nfs_lock_context *l_ctx;
ssize_t result = -EINVAL;
- size_t count;
-
- count = iov_length(iter->iov, iter->nr_segs);
+ size_t count = iov_iter_count(iter);
nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count);
dfprintk(FILE, "NFS: direct read(%pD2, %zd@%Ld)\n",
@@ -877,7 +875,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
get_dreq(dreq);
atomic_inc(&inode->i_dio_count);
- NFS_I(dreq->inode)->write_io += iov_length(iter->iov, iter->nr_segs);
+ NFS_I(dreq->inode)->write_io += iov_iter_count(iter);
for (seg = 0; seg < iter->nr_segs; seg++) {
const struct iovec *vec = &iter->iov[seg];
result = nfs_direct_write_schedule_segment(&desc, vec, pos, uio);
@@ -936,9 +934,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter,
struct nfs_direct_req *dreq;
struct nfs_lock_context *l_ctx;
loff_t end;
- size_t count;
-
- count = iov_length(iter->iov, iter->nr_segs);
+ size_t count = iov_iter_count(iter);
end = (pos + count - 1) >> PAGE_CACHE_SHIFT;
nfs_add_stats(mapping->host, NFSIOS_DIRECTWRITTENBYTES, count);