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-rw-r--r--fs/nfs/pnfs.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index b21bd0bee784..2f4f26905c03 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -375,6 +375,11 @@ static inline bool nfs_have_layout(struct inode *inode)
return NFS_I(inode)->layout != NULL;
}
+static inline bool pnfs_layout_is_valid(const struct pnfs_layout_hdr *lo)
+{
+ return test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) == 0;
+}
+
static inline struct nfs4_deviceid_node *
nfs4_get_deviceid(struct nfs4_deviceid_node *d)
{