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authorWeston Andros Adamson <dros@primarydata.com>2014-05-15 11:56:44 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-05-29 11:11:44 -0400
commitab75e417192a486ffe63a314b6d2e7361f0e157f (patch)
tree5bf3e9884f75e789aa1db33edb68103ad1f2c7fc /fs/nfs/nfs4filelayout.c
parentb4fdac1a5150174df0847a45dc6612ce5ce3daeb (diff)
nfs: call nfs_can_coalesce_requests for every req
Call nfs_can_coalesce_requests for every request, even the first one. This is needed for future patches to give pg_test a way to inform add_request to reduce the size of the request. Now @prev can be null in nfs_can_coalesce_requests and pg_test functions. Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4filelayout.c')
-rw-r--r--fs/nfs/nfs4filelayout.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index ba9a9aadf6c8..9319427e43e3 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -929,6 +929,9 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
!nfs_generic_pg_test(pgio, prev, req))
return 0;
+ if (!prev)
+ return req->wb_bytes;
+
p_stripe = (u64)req_offset(prev);
r_stripe = (u64)req_offset(req);
stripe_unit = FILELAYOUT_LSEG(pgio->pg_lseg)->stripe_unit;