Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx143.netapp.com ([216.240.21.24]:60306 "EHLO mx143.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753215AbbBMUFm (ORCPT ); Fri, 13 Feb 2015 15:05:42 -0500 Message-ID: <54DE5914.2060608@Netapp.com> Date: Fri, 13 Feb 2015 15:05:40 -0500 From: Anna Schumaker MIME-Version: 1.0 To: Tom Haynes , Trond Myklebust CC: Linux NFS Mailing list Subject: Re: [PATCH] nfs: Provide and use helper functions for marking a page as unstable References: <1423855103-88401-1-git-send-email-loghyr@primarydata.com> In-Reply-To: <1423855103-88401-1-git-send-email-loghyr@primarydata.com> Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: On 02/13/2015 02:18 PM, Tom Haynes wrote: > Signed-off-by: Tom Haynes > --- > fs/nfs/filelayout/filelayout.c | 9 ++------- > fs/nfs/flexfilelayout/flexfilelayout.c | 9 ++------- > fs/nfs/internal.h | 13 +++++++++++++ > fs/nfs/write.c | 16 ++++------------ > 4 files changed, 21 insertions(+), 26 deletions(-) > > diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c > index 7ae1c26..e1e5ea2 100644 > --- a/fs/nfs/filelayout/filelayout.c > +++ b/fs/nfs/filelayout/filelayout.c > @@ -1000,13 +1000,8 @@ mds_commit: > nfs_list_add_request(req, list); > cinfo->mds->ncommit++; > spin_unlock(cinfo->lock); > - if (!cinfo->dreq) { > - inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); > - inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host), > - BDI_RECLAIMABLE); > - __mark_inode_dirty(req->wb_context->dentry->d_inode, > - I_DIRTY_DATASYNC); > - } > + if (!cinfo->dreq) > + nfs_mark_page_unstable(req->wb_page); > } > > static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) > diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c > index c22ecaa..423c2bc 100644 > --- a/fs/nfs/flexfilelayout/flexfilelayout.c > +++ b/fs/nfs/flexfilelayout/flexfilelayout.c > @@ -1364,13 +1364,8 @@ ff_layout_mark_request_commit(struct nfs_page *req, > nfs_list_add_request(req, list); > cinfo->mds->ncommit++; > spin_unlock(cinfo->lock); > - if (!cinfo->dreq) { > - inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); > - inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host), > - BDI_RECLAIMABLE); > - __mark_inode_dirty(req->wb_context->dentry->d_inode, > - I_DIRTY_DATASYNC); > - } > + if (!cinfo->dreq) > + nfs_mark_page_unstable(req->wb_page); > } > > static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) > diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h > index 212b8c8..b802fb3 100644 > --- a/fs/nfs/internal.h > +++ b/fs/nfs/internal.h > @@ -598,6 +598,19 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize) > } > > /* > + * Record the page as unstable and mark its inode as dirty. > + */ > +static inline > +void nfs_mark_page_unstable(struct page *page) > +{ > + struct inode *inode = page_file_mapping(page)->host; > + > + inc_zone_page_state(page, NR_UNSTABLE_NFS); > + inc_bdi_stat(inode_to_bdi(inode), BDI_RECLAIMABLE); > + __mark_inode_dirty(inode, I_DIRTY_DATASYNC); > +} > + > +/* > * Determine the number of bytes of data the page contains > */ > static inline > diff --git a/fs/nfs/write.c b/fs/nfs/write.c > index 88a6d21..595d81e 100644 > --- a/fs/nfs/write.c > +++ b/fs/nfs/write.c > @@ -789,13 +789,8 @@ 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); > - if (!cinfo->dreq) { > - inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); > - inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host), > - BDI_RECLAIMABLE); > - __mark_inode_dirty(req->wb_context->dentry->d_inode, > - I_DIRTY_DATASYNC); > - } > + if (!cinfo->dreq) > + nfs_mark_page_unstable(req->wb_page); > } > EXPORT_SYMBOL_GPL(nfs_request_add_commit_list); > > @@ -1605,11 +1600,8 @@ 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, ds_commit_idx); > - if (!cinfo->dreq) { > - dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); > - dec_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host), > - BDI_RECLAIMABLE); > - } > + if (!cinfo->dreq) > + nfs_clear_page_commit(req->wb_page); This looks like a separate change than what the patch is advertising... Can you please send it as a separate patch? Thanks, Anna > nfs_unlock_and_release_request(req); > } > } >