diff options
Diffstat (limited to 'fs/nfs/nfs4filelayoutdev.c')
| -rw-r--r-- | fs/nfs/nfs4filelayoutdev.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index f594ca35a996..68143c162e3b 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -606,6 +606,21 @@ nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j) return flseg->fh_array[i]; } +static void +filelayout_mark_devid_negative(struct nfs4_file_layout_dsaddr *dsaddr, + int err, u32 ds_addr) +{ + u32 *p = (u32 *)&dsaddr->deviceid; + + printk(KERN_ERR "NFS: data server %x connection error %d." + " Deviceid [%x%x%x%x] marked out of use.\n", + ds_addr, err, p[0], p[1], p[2], p[3]); + + spin_lock(&filelayout_deviceid_lock); + dsaddr->flags |= NFS4_DEVICE_ID_NEG_ENTRY; + spin_unlock(&filelayout_deviceid_lock); +} + struct nfs4_pnfs_ds * nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx) { @@ -619,13 +634,18 @@ nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx) } if (!ds->ds_clp) { + struct nfs_server *s = NFS_SERVER(lseg->pls_layout->plh_inode); int err; - err = nfs4_ds_connect(NFS_SERVER(lseg->pls_layout->plh_inode), - dsaddr->ds_list[ds_idx]); + if (dsaddr->flags & NFS4_DEVICE_ID_NEG_ENTRY) { + /* Already tried to connect, don't try again */ + dprintk("%s Deviceid marked out of use\n", __func__); + return NULL; + } + err = nfs4_ds_connect(s, ds); if (err) { - printk(KERN_ERR "%s nfs4_ds_connect error %d\n", - __func__, err); + filelayout_mark_devid_negative(dsaddr, err, + ntohl(ds->ds_ip_addr)); return NULL; } } |