build: Sort file list

[fio.git] / init.c

diff --git a/init.c b/init.c
index 934b9d7c05e9be6c2886e2da63ba88a3313b4e17..9b2b63d6befc94866e8336a8a4c69bdc7e5acf06 100644 (file)
--- a/init.c
+++ b/init.c
@@ -921,7 +921,22 @@ static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 {
        int i;
 
-       init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
+       /*
+        * trimwrite is special in that we need to generate the same
+        * offsets to get the "write after trim" effect. If we are
+        * using bssplit to set buffer length distributions, ensure that
+        * we seed the trim and write generators identically.
+        */
+       if (td_trimwrite(td)) {
+               init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+       } else {
+               init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
+       }
+
        td_fill_verify_state_seed(td);
        init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
 
@@ -2022,7 +2037,7 @@ static void usage(const char *name)
        printf("  --version\t\tPrint version info and exit\n");
        printf("  --help\t\tPrint this page\n");
        printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
-       printf("  --crctest=type\tTest speed of checksum functions\n");
+       printf("  --crctest=[type]\tTest speed of checksum functions\n");
        printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
                " them\n");
        printf("  --enghelp=engine\tPrint ioengine help, or list"