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| author | Fred Isaman <iisaman@netapp.com> | 2012-04-20 14:47:56 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-04-27 14:10:39 -0400 |
| commit | 56f9cd684d25f1bae901c5a872b8427f8b417c3f (patch) | |
| tree | 3b909f475e6e88db67b01d9b39ebca54d20fc4d3 | |
| parent | b359f9d09bcbaede09243cfe844172ba055d89fd (diff) | |
| download | op-kernel-dev-56f9cd684d25f1bae901c5a872b8427f8b417c3f.zip op-kernel-dev-56f9cd684d25f1bae901c5a872b8427f8b417c3f.tar.gz | |
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>
| -rw-r--r-- | fs/nfs/write.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 44a93d8..56db9e7f 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); } } |
