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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-09-01 00:58:24 -0700
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-09-01 15:12:11 -0700
commit889d94d49a3cbcbc8c8d07208549fa614d33da76 (patch)
tree7ae765e583577b05cd0628fc96ff177d07a33eb0 /fs/nfs
parent81d6dc8b3431d298abaef11d8bc64646fc691618 (diff)
downloadop-kernel-dev-889d94d49a3cbcbc8c8d07208549fa614d33da76.zip
op-kernel-dev-889d94d49a3cbcbc8c8d07208549fa614d33da76.tar.gz
NFSv4.1/flexfiles: Mark layout for return if the mirrors are invalid
If a read-write layout has an invalid mirror, then we should mark it as invalid, and return it. If a read-only layout has an invalid mirror, then mark it as invalid and check if there is still at least one valid mirror before we return it. Note: Also fix incorrect use of pnfs_generic_mark_devid_invalid(). We really want nfs4_mark_deviceid_unavailable(). Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c45
1 files changed, 30 insertions, 15 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index b6c21e9..e125e55 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -172,6 +172,32 @@ out_err:
return NULL;
}
+static void ff_layout_mark_devid_invalid(struct pnfs_layout_segment *lseg,
+ struct nfs4_deviceid_node *devid)
+{
+ nfs4_mark_deviceid_unavailable(devid);
+ if (!ff_layout_has_available_ds(lseg))
+ pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode,
+ lseg);
+}
+
+static bool ff_layout_mirror_valid(struct pnfs_layout_segment *lseg,
+ struct nfs4_ff_layout_mirror *mirror)
+{
+ if (mirror == NULL || mirror->mirror_ds == NULL) {
+ pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode,
+ lseg);
+ return false;
+ }
+ if (mirror->mirror_ds->ds == NULL) {
+ struct nfs4_deviceid_node *devid;
+ devid = &mirror->mirror_ds->id_node;
+ ff_layout_mark_devid_invalid(lseg, devid);
+ return false;
+ }
+ return true;
+}
+
static u64
end_offset(u64 start, u64 len)
{
@@ -336,16 +362,10 @@ nfs4_ff_layout_select_ds_fh(struct pnfs_layout_segment *lseg, u32 mirror_idx)
{
struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, mirror_idx);
struct nfs_fh *fh = NULL;
- struct nfs4_deviceid_node *devid;
- if (mirror == NULL || mirror->mirror_ds == NULL ||
- mirror->mirror_ds->ds == NULL) {
- printk(KERN_ERR "NFS: %s: No data server for mirror offset index %d\n",
+ if (!ff_layout_mirror_valid(lseg, mirror)) {
+ pr_err_ratelimited("NFS: %s: No data server for mirror offset index %d\n",
__func__, mirror_idx);
- if (mirror && mirror->mirror_ds) {
- devid = &mirror->mirror_ds->id_node;
- nfs4_mark_deviceid_unavailable(devid);
- }
goto out;
}
@@ -368,14 +388,9 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
unsigned int max_payload;
rpc_authflavor_t flavor;
- if (mirror == NULL || mirror->mirror_ds == NULL ||
- mirror->mirror_ds->ds == NULL) {
- printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
+ if (!ff_layout_mirror_valid(lseg, mirror)) {
+ pr_err_ratelimited("NFS: %s: No data server for offset index %d\n",
__func__, ds_idx);
- if (mirror && mirror->mirror_ds) {
- devid = &mirror->mirror_ds->id_node;
- nfs4_mark_deviceid_unavailable(devid);
- }
goto out;
}
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