File 0865-Fix-valid-range-for-SDio.patch of Package erlang
From 8fa3635514b7ab1aa6ce14fdf8327aff4b5c46fd Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Tue, 18 Feb 2020 23:28:04 +0100
Subject: [PATCH] Fix valid range for +SDio
---
erts/doc/src/erl.xml | 2 +-
erts/emulator/beam/erl_init.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index 638e88ca31..b876d83c9f 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1010,7 +1010,7 @@
<tag><marker id="+SDio"/><c><![CDATA[+SDio DirtyIOSchedulers]]></c></tag>
<item>
<p>Sets the number of dirty I/O scheduler threads to create when
- threading support has been enabled. Valid range is 0-1024. By
+ threading support has been enabled. Valid range is 1-1024. By
default, the number of dirty I/O scheduler threads created is 10,
same as the default number of threads in the <seealso
marker="#async_thread_pool_size">async thread pool</seealso>.</p>
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 5206d7564f..a8f18b20d7 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -652,7 +652,7 @@ void erts_usage(void)
erts_fprintf(stderr, "-SDPcpu p1:p2 specify dirty CPU schedulers (p1) and dirty CPU schedulers\n");
erts_fprintf(stderr, " online (p2) as percentages of logical processors configured\n");
erts_fprintf(stderr, " and logical processors available, respectively\n");
- erts_fprintf(stderr, "-SDio n set number of dirty I/O schedulers, valid range is [0-%d]\n",
+ erts_fprintf(stderr, "-SDio n set number of dirty I/O schedulers, valid range is [1-%d]\n",
ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS);
#endif
erts_fprintf(stderr, "-t size set the maximum number of atoms the emulator can handle\n");
@@ -1017,7 +1017,7 @@ early_init(int *argc, char **argv) /*
} else if (strncmp(type, "io", 2) == 0) {
arg = get_arg(argv[i]+5, argv[i+1], &i);
dirty_io_scheds = atoi(arg);
- if (dirty_io_scheds < 0 ||
+ if (dirty_io_scheds < 1 ||
dirty_io_scheds > ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS) {
erts_fprintf(stderr,
"bad number of dirty I/O schedulers %s\n",
--
2.16.4
