xz: Use POSIX_FADV_RANDOM for in "xz --list" mode.
xz --list is random access so POSIX_FADV_SEQUENTIAL was clearly
wrong.
diff --git a/src/xz/file_io.c b/src/xz/file_io.c
index c01f4e8..041bed8 100644
--- a/src/xz/file_io.c
+++ b/src/xz/file_io.c
@@ -525,7 +525,10 @@
#endif
#ifdef HAVE_POSIX_FADVISE
// It will fail if stdin is a pipe and that's fine.
- (void)posix_fadvise(STDIN_FILENO, 0, 0, POSIX_FADV_SEQUENTIAL);
+ (void)posix_fadvise(STDIN_FILENO, 0, 0,
+ opt_mode == MODE_LIST
+ ? POSIX_FADV_RANDOM
+ : POSIX_FADV_SEQUENTIAL);
#endif
return false;
}
@@ -716,7 +719,10 @@
#ifdef HAVE_POSIX_FADVISE
// It will fail with some special files like FIFOs but that is fine.
- (void)posix_fadvise(pair->src_fd, 0, 0, POSIX_FADV_SEQUENTIAL);
+ (void)posix_fadvise(pair->src_fd, 0, 0,
+ opt_mode == MODE_LIST
+ ? POSIX_FADV_RANDOM
+ : POSIX_FADV_SEQUENTIAL);
#endif
return false;