options: full control of fadvise hinting

[fio.git] / options.c

diff --git a/options.c b/options.c
index 7638afc0f8ed94b87f26ea835c2e59bce44936db..b81db23115009e065b49eb717dd16cf52bc5b8a3 100644 (file)
--- a/options.c
+++ b/options.c
@@ -2295,8 +2295,26 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
        {
                .name   = "fadvise_hint",
                .lname  = "Fadvise hint",
-               .type   = FIO_OPT_BOOL,
+               .type   = FIO_OPT_STR,
                .off1   = offsetof(struct thread_options, fadvise_hint),
+               .posval = {
+                         { .ival = "0",
+                           .oval = F_ADV_NONE,
+                           .help = "Don't issue fadvise",
+                         },
+                         { .ival = "1",
+                           .oval = F_ADV_TYPE,
+                           .help = "Advise using fio IO pattern",
+                         },
+                         { .ival = "random",
+                           .oval = F_ADV_RANDOM,
+                           .help = "Advise using FADV_RANDOM",
+                         },
+                         { .ival = "sequential",
+                           .oval = F_ADV_SEQUENTIAL,
+                           .help = "Advise using FADV_SEQUENTIAL",
+                         },
+               },
                .help   = "Use fadvise() to advise the kernel on IO pattern",
                .def    = "1",
                .category = FIO_OPT_C_FILE,