Recent changes (master)

index 75694bd..a2427a1 100644
@@ -674,7 +674,8 @@ open_again:
 			from_hash = file_lookup_open(f, flags);
 	} else if (td_trim(td)) {
 		assert(!td_rw(td)); /* should have matched above */
-		flags |= O_RDWR;
+		if (!read_only)
+			flags |= O_RDWR;
 		from_hash = file_lookup_open(f, flags);
 	}
 

index 9727f6c..51b8fdc 100644
@@ -533,7 +533,8 @@ extern bool eta_time_within_slack(unsigned int time);
 
 static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
 {
-	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
+	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
+	       !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
 }
 
 #define REAL_MAX_JOBS		4096

index 353c99b..af4cc6b 100644
@@ -594,13 +594,19 @@ static int fixup_options(struct thread_data *td)
 	struct thread_options *o = &td->o;
 	int ret = 0;
 
+	if (read_only && (td_write(td) || td_trim(td))) {
+		log_err("fio: trim and write operations are not allowed"
+			 " with the --readonly parameter.\n");
+		ret |= 1;
+	}
+
 #ifndef CONFIG_PSHARED
 	if (!o->use_thread) {
 		log_info("fio: this platform does not support process shared"
 			 " mutexes, forcing use of threads. Use the 'thread'"
 			 " option to get rid of this warning.\n");
 		o->use_thread = 1;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 #endif
 

@@ -608,7 +614,7 @@ static int fixup_options(struct thread_data *td)
 		log_err("fio: read iolog overrides write_iolog\n");
 		free(o->write_iolog_file);
 		o->write_iolog_file = NULL;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 
 	/*

@@ -662,7 +668,7 @@ static int fixup_options(struct thread_data *td)
 	    !o->norandommap) {
 		log_err("fio: Any use of blockalign= turns off randommap\n");
 		o->norandommap = 1;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 
 	if (!o->file_size_high)

@@ -680,7 +686,7 @@ static int fixup_options(struct thread_data *td)
 	    && !fixed_block_size(o))  {
 		log_err("fio: norandommap given for variable block sizes, "
 			"verify limited\n");
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 	if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 		log_err("fio: bs_unaligned may not work with raw io\n");

@@ -724,7 +730,7 @@ static int fixup_options(struct thread_data *td)
 		log_err("fio: checking for in-flight overlaps when the "
 			"io_submit_mode is offload is not supported\n");
 		o->serialize_overlap = 0;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 
 	if (o->nr_files > td->files_index)

@@ -738,7 +744,7 @@ static int fixup_options(struct thread_data *td)
 	    ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 	    (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 		log_err("fio: rate and rate_iops are mutually exclusive\n");
-		ret = 1;
+		ret |= 1;
 	}
 	if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 	    (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||

@@ -747,13 +753,13 @@ static int fixup_options(struct thread_data *td)
 	    (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 	    (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 		log_err("fio: minimum rate exceeds rate\n");
-		ret = 1;
+		ret |= 1;
 	}
 
 	if (!o->timeout && o->time_based) {
 		log_err("fio: time_based requires a runtime/timeout setting\n");
 		o->time_based = 0;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 
 	if (o->fill_device && !o->size)

@@ -769,7 +775,7 @@ static int fixup_options(struct thread_data *td)
 			log_info("fio: multiple writers may overwrite blocks "
 				"that belong to other jobs. This can cause "
 				"verification failures.\n");
-			ret = warnings_fatal;
+			ret |= warnings_fatal;
 		}
 
 		/*

@@ -781,7 +787,7 @@ static int fixup_options(struct thread_data *td)
 			log_info("fio: verification read phase will never "
 				 "start because write phase uses all of "
 				 "runtime\n");
-			ret = warnings_fatal;
+			ret |= warnings_fatal;
 		}
 
 		if (!fio_option_is_set(o, refill_buffers))

@@ -817,7 +823,7 @@ static int fixup_options(struct thread_data *td)
 		if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 			log_info("fio: cannot pre-read files with an IO engine"
 				 " that isn't seekable. Pre-read disabled.\n");
-			ret = warnings_fatal;
+			ret |= warnings_fatal;
 		}
 	}
 

@@ -841,7 +847,7 @@ static int fixup_options(struct thread_data *td)
 			 " this warning\n");
 		o->fsync_blocks = o->fdatasync_blocks;
 		o->fdatasync_blocks = 0;
-		ret = warnings_fatal;
+		ret |= warnings_fatal;
 	}
 #endif
 

@@ -854,7 +860,7 @@ static int fixup_options(struct thread_data *td)
 		log_err("fio: Windows does not support direct or non-buffered io with"
 				" the synchronous ioengines. Use the 'windowsaio' ioengine"
 				" with 'direct=1' and 'iodepth=1' instead.\n");
-		ret = 1;
+		ret |= 1;
 	}
 #endif
 

@@ -887,7 +893,7 @@ static int fixup_options(struct thread_data *td)
 	if (o->size && o->size < td_min_bs(td)) {
 		log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 			(unsigned long long) o->size, td_min_bs(td));
-		ret = 1;
+		ret |= 1;
 	}
 
 	/*

@@ -904,7 +910,7 @@ static int fixup_options(struct thread_data *td)
 
 	if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 		log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
-		ret = 1;
+		ret |= 1;
 	}
 
 	if (fio_option_is_set(o, gtod_cpu)) {

@@ -921,7 +927,7 @@ static int fixup_options(struct thread_data *td)
 		log_err("fio: block error histogram only available "
 			"with a single file per job, but %d files "
 			"provided\n", o->nr_files);
-		ret = 1;
+		ret |= 1;
 	}
 
 	if (fio_option_is_set(o, clat_percentiles) &&

@@ -935,7 +941,7 @@ static int fixup_options(struct thread_data *td)
 		   o->lat_percentiles && o->clat_percentiles) {
 		log_err("fio: lat_percentiles and clat_percentiles are "
 			"mutually exclusive\n");
-		ret = 1;
+		ret |= 1;
 	}
 
 	if (o->disable_lat)

index 0c4f89c..a174e2c 100644
@@ -1555,9 +1555,9 @@ static int rw_verify(const struct fio_option *o, void *data)
 {
 	struct thread_data *td = cb_data_to_td(data);
 
-	if (read_only && td_write(td)) {
-		log_err("fio: job <%s> has write bit set, but fio is in"
-			" read-only mode\n", td->o.name);
+	if (read_only && (td_write(td) || td_trim(td))) {
+		log_err("fio: job <%s> has write or trim bit set, but"
+			" fio is in read-only mode\n", td->o.name);
 		return 1;
 	}