in pathconf, -1, not 0, means unsupported.. syncio presumably works, too.

diff --git a/src/conf/fpathconf.c b/src/conf/fpathconf.c
index f1bcc340cc377e4fd54d3f775414b1490cd09508..bfbb27426755c328d4a712abbb924785c1b07e82 100644 (file)
--- a/src/conf/fpathconf.c
+++ b/src/conf/fpathconf.c
@@ -14,9 +14,9 @@ long fpathconf(int fd, int name)
                [_PC_CHOWN_RESTRICTED] = 1,
                [_PC_NO_TRUNC] = 1,
                [_PC_VDISABLE] = 0,
-               [_PC_SYNC_IO] = 0,
-               [_PC_ASYNC_IO] = 0,
-               [_PC_PRIO_IO] = 0,
+               [_PC_SYNC_IO] = 1,
+               [_PC_ASYNC_IO] = -1,
+               [_PC_PRIO_IO] = -1,
                [_PC_SOCK_MAXBUF] = -1,
                [_PC_FILESIZEBITS] = FILESIZEBITS,
                [_PC_REC_INCR_XFER_SIZE] = PAGE_SIZE,