diff options
Diffstat (limited to 'include/linux/exportfs.h')
| -rw-r--r-- | include/linux/exportfs.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h index fc93f0abf513..25c4a5afbd44 100644 --- a/include/linux/exportfs.h +++ b/include/linux/exportfs.h @@ -314,6 +314,9 @@ static inline bool exportfs_can_decode_fh(const struct export_operations *nop) static inline bool exportfs_can_encode_fh(const struct export_operations *nop, int fh_flags) { + if (!nop) + return false; + /* * If a non-decodeable file handle was requested, we only need to make * sure that filesystem did not opt-out of encoding fid. @@ -322,6 +325,13 @@ static inline bool exportfs_can_encode_fh(const struct export_operations *nop, return exportfs_can_encode_fid(nop); /* + * If a connectable file handle was requested, we need to make sure that + * filesystem can also decode connected file handles. + */ + if ((fh_flags & EXPORT_FH_CONNECTABLE) && !nop->fh_to_parent) + return false; + + /* * If a decodeable file handle was requested, we need to make sure that * filesystem can also decode file handles. */ |