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authorFred Isaman <iisaman@netapp.com>2012-04-20 14:47:56 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-27 14:10:39 -0400
commit56f9cd684d25f1bae901c5a872b8427f8b417c3f (patch)
tree3b909f475e6e88db67b01d9b39ebca54d20fc4d3 /fs/nfs/write.c
parentb359f9d09bcbaede09243cfe844172ba055d89fd (diff)
NFS: avoid some stat gathering for direct io
Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r--fs/nfs/write.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 44a93d8c7b5..56db9e7fa47 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -472,9 +472,13 @@ nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
nfs_list_add_request(req, dst);
cinfo->mds->ncommit++;
spin_unlock(cinfo->lock);
- inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
- inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE);
- __mark_inode_dirty(req->wb_context->dentry->d_inode, I_DIRTY_DATASYNC);
+ if (!cinfo->dreq) {
+ inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ inc_bdi_stat(req->wb_page->mapping->backing_dev_info,
+ BDI_RECLAIMABLE);
+ __mark_inode_dirty(req->wb_context->dentry->d_inode,
+ I_DIRTY_DATASYNC);
+ }
}
EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);
@@ -1455,9 +1459,11 @@ void nfs_retry_commit(struct list_head *page_list,
req = nfs_list_entry(page_list->next);
nfs_list_remove_request(req);
nfs_mark_request_commit(req, lseg, cinfo);
- dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
- dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
- BDI_RECLAIMABLE);
+ if (!cinfo->dreq) {
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
+ BDI_RECLAIMABLE);
+ }
nfs_unlock_request(req);
}
}