cursor: posix_fallocate may fail with EINVAL if not supported

ZFS on FreeBSD >= 12.0 returns EINVAL, see
https://svnweb.freebsd.org/changeset/base/325320

Signed-off-by: Jan Beich <jbeich@FreeBSD.org>

diff --git a/cursor/os-compatibility.c b/cursor/os-compatibility.c
index 6f5b39f..002bb5c 100644 (file)
--- a/cursor/os-compatibility.c
+++ b/cursor/os-compatibility.c
@@ -157,13 +157,13 @@ os_create_anonymous_file(off_t size)
 
 #ifdef HAVE_POSIX_FALLOCATE
        /* 
-        * Filesystems that do support fallocate will return EOPNOTSUPP.
-        * In this case we need to fall back to ftruncate
+        * Filesystems that do support fallocate will return EINVAL or
+        * EOPNOTSUPP. In this case we need to fall back to ftruncate
         */
        ret = posix_fallocate(fd, 0, size);
        if (ret == 0) {
                return fd;
-       } else if (ret != EOPNOTSUPP) {
+       } else if (ret != EINVAL && ret != EOPNOTSUPP) {
                close(fd);
                errno = ret;
                return -1;