diff options
Diffstat (limited to 'fs/nfs/pagelist.c')
| -rw-r--r-- | fs/nfs/pagelist.c | 59 |
1 files changed, 29 insertions, 30 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index eae584dbfa08..64d87576a6c1 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -888,15 +888,6 @@ static void nfs_pageio_setup_mirroring(struct nfs_pageio_descriptor *pgio, pgio->pg_mirror_count = mirror_count; } -/* - * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1) - */ -void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio) -{ - pgio->pg_mirror_count = 1; - pgio->pg_mirror_idx = 0; -} - static void nfs_pageio_cleanup_mirroring(struct nfs_pageio_descriptor *pgio) { pgio->pg_mirror_count = 1; @@ -1179,38 +1170,38 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc, if (desc->pg_error < 0) goto out_failed; - for (midx = 0; midx < desc->pg_mirror_count; midx++) { - if (midx) { - nfs_page_group_lock(req); + /* Create the mirror instances first, and fire them off */ + for (midx = 1; midx < desc->pg_mirror_count; midx++) { + nfs_page_group_lock(req); - /* find the last request */ - for (lastreq = req->wb_head; - lastreq->wb_this_page != req->wb_head; - lastreq = lastreq->wb_this_page) - ; + /* find the last request */ + for (lastreq = req->wb_head; + lastreq->wb_this_page != req->wb_head; + lastreq = lastreq->wb_this_page) + ; - dupreq = nfs_create_subreq(req, lastreq, - pgbase, offset, bytes); + dupreq = nfs_create_subreq(req, lastreq, + pgbase, offset, bytes); - nfs_page_group_unlock(req); - if (IS_ERR(dupreq)) { - desc->pg_error = PTR_ERR(dupreq); - goto out_failed; - } - } else - dupreq = req; + nfs_page_group_unlock(req); + if (IS_ERR(dupreq)) { + desc->pg_error = PTR_ERR(dupreq); + goto out_failed; + } - if (nfs_pgio_has_mirroring(desc)) - desc->pg_mirror_idx = midx; + desc->pg_mirror_idx = midx; if (!nfs_pageio_add_request_mirror(desc, dupreq)) goto out_cleanup_subreq; } + desc->pg_mirror_idx = 0; + if (!nfs_pageio_add_request_mirror(desc, req)) + goto out_failed; + return 1; out_cleanup_subreq: - if (req != dupreq) - nfs_pageio_cleanup_request(desc, dupreq); + nfs_pageio_cleanup_request(desc, dupreq); out_failed: nfs_pageio_error_cleanup(desc); return 0; @@ -1322,6 +1313,14 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index) } } +/* + * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1) + */ +void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio) +{ + nfs_pageio_complete(pgio); +} + int __init nfs_init_nfspagecache(void) { nfs_page_cachep = kmem_cache_create("nfs_page", |