ef_open() and ef_close() clear EFF_SENTINEL because of that. Broken
since commit
1492845c (v4.3.17) added EFF_SENTINEL. Harmless, as no
file-backed table has a sentinel.
#define EFF_SENTINEL bit(5)
/* All the immutable flags */
#define EFF_IMMUTABLE \
- (EFF_TYPED | EFF_XY | EFF_OWNER | EFF_GROUP | EFF_STATIC)
+ (EFF_TYPED | EFF_XY | EFF_OWNER | EFF_GROUP | EFF_STATIC | EFF_SENTINEL)
/* Flags set when table contents is mapped */
/* Table is entirely in memory */
#define EFF_MEM bit(8)