diff options
| author | Trond Myklebust <trondmy@gmail.com> | 2020-01-14 12:06:34 -0500 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-01-24 16:51:13 -0500 |
| commit | f7b37b8b139860ed786bf8ce4358290c6053d94d (patch) | |
| tree | 698b3ba1c636ce876cf452a249d82b95fec0008b /fs/nfs/dir.c | |
| parent | fe1e8dbec11fcad3ae7a34e95fe483d4a2b018fc (diff) | |
NFS: Add softreval behaviour to nfs_lookup_revalidate()
If the server is unavaliable, we want to allow the revalidating
lookup to time out, and to default to validating the cached dentry
if the 'softreval' mount option is set.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 9405eeadc3f3..bfc66f3f00e1 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1142,10 +1142,17 @@ nfs_lookup_revalidate_dentry(struct inode *dir, struct dentry *dentry, if (fhandle == NULL || fattr == NULL || IS_ERR(label)) goto out; - ret = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label); + ret = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, label); if (ret < 0) { - if (ret == -ESTALE || ret == -ENOENT) + switch (ret) { + case -ESTALE: + case -ENOENT: ret = 0; + break; + case -ETIMEDOUT: + if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL) + ret = 1; + } goto out; } ret = 0; @@ -1408,7 +1415,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in goto out; trace_nfs_lookup_enter(dir, dentry, flags); - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label); + error = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, label); if (error == -ENOENT) goto no_entry; if (error < 0) { @@ -1683,7 +1690,7 @@ nfs_add_or_obtain(struct dentry *dentry, struct nfs_fh *fhandle, d_drop(dentry); if (fhandle->size == 0) { - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, NULL); + error = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, NULL); if (error) goto out_error; } |