From 1e7f3a485922211b6e4a082ebc6bf05810b0b6ea Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Mon, 9 Jun 2014 11:48:33 -0400 Subject: nfs: move nfs_pgio_data and remove nfs_rw_header nfs_rw_header was used to allocate an nfs_pgio_header along with an nfs_pgio_data, because a _header would need at least one _data. Now there is only ever one nfs_pgio_data for each nfs_pgio_header -- move it to nfs_pgio_header and get rid of nfs_rw_header. Reviewed-by: Christoph Hellwig Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- fs/nfs/direct.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs/nfs/direct.c') diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 8f98138cbc43..179de67ca907 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -148,8 +148,8 @@ static void nfs_direct_set_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data->ds_clp, - hdr->data->ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->data.ds_clp, + hdr->data.ds_idx); WARN_ON_ONCE(verfp->committed >= 0); memcpy(verfp, &hdr->verf, sizeof(struct nfs_writeverf)); WARN_ON_ONCE(verfp->committed < 0); @@ -169,8 +169,8 @@ static int nfs_direct_set_or_cmp_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data->ds_clp, - hdr->data->ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->data.ds_clp, + hdr->data.ds_idx); if (verfp->committed < 0) { nfs_direct_set_hdr_verf(dreq, hdr); return 0; -- cgit v1.2.3 From d45f60c67848b9f19160692581d78e5b4757a000 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Mon, 9 Jun 2014 11:48:35 -0400 Subject: nfs: merge nfs_pgio_data into _header struct nfs_pgio_data only exists as a member of nfs_pgio_header, but is passed around everywhere, because there used to be multiple _data structs per _header. Many of these functions then use the _data to find a pointer to the _header. This patch cleans this up by merging the nfs_pgio_data structure into nfs_pgio_header and passing nfs_pgio_header around instead. Reviewed-by: Christoph Hellwig Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- fs/nfs/direct.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs/nfs/direct.c') diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 179de67ca907..6c4c867ee04c 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -148,8 +148,8 @@ static void nfs_direct_set_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data.ds_clp, - hdr->data.ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, + hdr->ds_idx); WARN_ON_ONCE(verfp->committed >= 0); memcpy(verfp, &hdr->verf, sizeof(struct nfs_writeverf)); WARN_ON_ONCE(verfp->committed < 0); @@ -169,8 +169,8 @@ static int nfs_direct_set_or_cmp_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data.ds_clp, - hdr->data.ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, + hdr->ds_idx); if (verfp->committed < 0) { nfs_direct_set_hdr_verf(dreq, hdr); return 0; -- cgit v1.2.3 From c65e6254ca4db1584c5bf5f228ee26556477a9fd Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Mon, 9 Jun 2014 11:48:36 -0400 Subject: nfs: remove unused writeverf code Remove duplicate writeverf structure from merge of nfs_pgio_header and nfs_pgio_data and remove writeverf related flags and logic to handle more than one RPC per nfs_pgio_header. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- fs/nfs/direct.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) (limited to 'fs/nfs/direct.c') diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 6c4c867ee04c..2a3293a5dda0 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -715,7 +715,7 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) { struct nfs_direct_req *dreq = hdr->dreq; struct nfs_commit_info cinfo; - int bit = -1; + bool request_commit = false; struct nfs_page *req = nfs_list_entry(hdr->pages.next); if (test_bit(NFS_IOHDR_REDO, &hdr->flags)) @@ -729,27 +729,20 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) dreq->flags = 0; dreq->error = hdr->error; } - if (dreq->error != 0) - bit = NFS_IOHDR_ERROR; - else { + if (dreq->error == 0) { dreq->count += hdr->good_bytes; - if (test_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags)) { - dreq->flags = NFS_ODIRECT_RESCHED_WRITES; - bit = NFS_IOHDR_NEED_RESCHED; - } else if (test_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags)) { + if (nfs_write_need_commit(hdr)) { if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) - bit = NFS_IOHDR_NEED_RESCHED; + request_commit = true; else if (dreq->flags == 0) { nfs_direct_set_hdr_verf(dreq, hdr); - bit = NFS_IOHDR_NEED_COMMIT; + request_commit = true; dreq->flags = NFS_ODIRECT_DO_COMMIT; } else if (dreq->flags == NFS_ODIRECT_DO_COMMIT) { - if (nfs_direct_set_or_cmp_hdr_verf(dreq, hdr)) { + request_commit = true; + if (nfs_direct_set_or_cmp_hdr_verf(dreq, hdr)) dreq->flags = NFS_ODIRECT_RESCHED_WRITES; - bit = NFS_IOHDR_NEED_RESCHED; - } else - bit = NFS_IOHDR_NEED_COMMIT; } } } @@ -760,9 +753,7 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) req = nfs_list_entry(hdr->pages.next); nfs_list_remove_request(req); - switch (bit) { - case NFS_IOHDR_NEED_RESCHED: - case NFS_IOHDR_NEED_COMMIT: + if (request_commit) { kref_get(&req->wb_kref); nfs_mark_request_commit(req, hdr->lseg, &cinfo); do_destroy = false; -- cgit v1.2.3