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| author | Trond Myklebust <trondmy@gmail.com> | 2020-01-14 20:06:34 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-01-25 00:51:13 +0300 |
| commit | f7b37b8b139860ed786bf8ce4358290c6053d94d (patch) | |
| tree | 698b3ba1c636ce876cf452a249d82b95fec0008b /fs/nfs/internal.h | |
| parent | fe1e8dbec11fcad3ae7a34e95fe483d4a2b018fc (diff) | |
| download | linux-f7b37b8b139860ed786bf8ce4358290c6053d94d.tar.xz | |
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/internal.h')
| -rw-r--r-- | fs/nfs/internal.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 17f082442804..f80c47d5ff27 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -33,6 +33,15 @@ static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr) return 1; } +static inline bool nfs_lookup_is_soft_revalidate(const struct dentry *dentry) +{ + if (!(NFS_SB(dentry->d_sb)->flags & NFS_MOUNT_SOFTREVAL)) + return false; + if (!d_is_positive(dentry) || !NFS_FH(d_inode(dentry))->size) + return false; + return true; +} + /* * Note: RFC 1813 doesn't limit the number of auth flavors that * a server can return, so make something up. |