Function fsync_dir_recurse

src/common/file_utils.c:127–139

* Issue fsync recursively on the given directory and all its contents. * * This is a convenient wrapper on top of walkdir(). */

 * This is a convenient wrapper on top of walkdir().
 */
void
fsync_dir_recurse(const char *dir)
{
	/*
	 * If possible, hint to the kernel that we're soon going to fsync the data
	 * directory and its contents.
	 */
#ifdef PG_FLUSH_DATA_WORKS
	walkdir(dir, pre_sync_fname, false);
#endif

	walkdir(dir, fsync_fname, false);
}

/*
 * walkdir: recursively walk a directory, applying the action to each