diff options
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index 280b6b060d53..cae43333ef16 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c | |||
| @@ -812,7 +812,6 @@ ff_layout_pg_get_read(struct nfs_pageio_descriptor *pgio, | |||
| 812 | struct nfs_page *req, | 812 | struct nfs_page *req, |
| 813 | bool strict_iomode) | 813 | bool strict_iomode) |
| 814 | { | 814 | { |
| 815 | retry_strict: | ||
| 816 | pnfs_put_lseg(pgio->pg_lseg); | 815 | pnfs_put_lseg(pgio->pg_lseg); |
| 817 | pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, | 816 | pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, |
| 818 | req->wb_context, | 817 | req->wb_context, |
| @@ -825,16 +824,6 @@ retry_strict: | |||
| 825 | pgio->pg_error = PTR_ERR(pgio->pg_lseg); | 824 | pgio->pg_error = PTR_ERR(pgio->pg_lseg); |
| 826 | pgio->pg_lseg = NULL; | 825 | pgio->pg_lseg = NULL; |
| 827 | } | 826 | } |
| 828 | |||
| 829 | /* If we don't have checking, do get a IOMODE_RW | ||
| 830 | * segment, and the server wants to avoid READs | ||
| 831 | * there, then retry! | ||
| 832 | */ | ||
| 833 | if (pgio->pg_lseg && !strict_iomode && | ||
| 834 | ff_layout_avoid_read_on_rw(pgio->pg_lseg)) { | ||
| 835 | strict_iomode = true; | ||
| 836 | goto retry_strict; | ||
| 837 | } | ||
| 838 | } | 827 | } |
| 839 | 828 | ||
| 840 | static void | 829 | static void |
| @@ -849,14 +838,16 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, | |||
| 849 | retry: | 838 | retry: |
| 850 | pnfs_generic_pg_check_layout(pgio); | 839 | pnfs_generic_pg_check_layout(pgio); |
| 851 | /* Use full layout for now */ | 840 | /* Use full layout for now */ |
| 852 | if (!pgio->pg_lseg) | 841 | if (!pgio->pg_lseg) { |
| 853 | ff_layout_pg_get_read(pgio, req, false); | 842 | ff_layout_pg_get_read(pgio, req, false); |
| 854 | else if (ff_layout_avoid_read_on_rw(pgio->pg_lseg)) | 843 | if (!pgio->pg_lseg) |
| 844 | goto out_nolseg; | ||
| 845 | } | ||
| 846 | if (ff_layout_avoid_read_on_rw(pgio->pg_lseg)) { | ||
| 855 | ff_layout_pg_get_read(pgio, req, true); | 847 | ff_layout_pg_get_read(pgio, req, true); |
| 856 | 848 | if (!pgio->pg_lseg) | |
| 857 | /* If no lseg, fall back to read through mds */ | 849 | goto out_nolseg; |
| 858 | if (pgio->pg_lseg == NULL) | 850 | } |
| 859 | goto out_mds; | ||
| 860 | 851 | ||
| 861 | ds = ff_layout_choose_best_ds_for_read(pgio->pg_lseg, 0, &ds_idx); | 852 | ds = ff_layout_choose_best_ds_for_read(pgio->pg_lseg, 0, &ds_idx); |
| 862 | if (!ds) { | 853 | if (!ds) { |
| @@ -878,6 +869,9 @@ retry: | |||
| 878 | pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].rsize; | 869 | pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].rsize; |
| 879 | 870 | ||
| 880 | return; | 871 | return; |
| 872 | out_nolseg: | ||
| 873 | if (pgio->pg_error < 0) | ||
| 874 | return; | ||
| 881 | out_mds: | 875 | out_mds: |
| 882 | pnfs_put_lseg(pgio->pg_lseg); | 876 | pnfs_put_lseg(pgio->pg_lseg); |
| 883 | pgio->pg_lseg = NULL; | 877 | pgio->pg_lseg = NULL; |
