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authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2019-11-08 16:32:37 +0100
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2019-11-08 16:32:37 +0100
commite5586605ca3dfa1e4ad2bb5ddea818777846dca2 (patch)
treed569242db4ce7ed47f74eb79fc215aea36d677e1
parent162ac7f45ed0ffdb2fdb2fc1871557523fd22d98 (diff)
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taskset: update comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--util-linux/taskset.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/util-linux/taskset.c b/util-linux/taskset.c
index cebc20fea..157bf5e4c 100644
--- a/util-linux/taskset.c
+++ b/util-linux/taskset.c
@@ -123,8 +123,14 @@ static unsigned long *get_aff(int pid, unsigned *sz)
* The list element can be either a CPU index or a range of CPU indices.
* Example: "1,3,5-7".
*
- * note1: pattern specifiers after a range (e.g. 0-255:2/64) are not supported
- * note2: leading/trailing white-spaces are not allowed
+ * note1: stride (e.g. 0-255:2) is not supported
+ * note2: leading and trailing whitespace is not allowed
+ * util-linux 2.31 allows leading and sometimes trailing whitespace:
+ * ok: taskset -c ' 1, 2'
+ * ok: taskset -c ' 1 , 2'
+ * ok: taskset -c ' 1-7: 2 ,8'
+ * not ok: taskset -c ' 1 '
+ * not ok: taskset -c ' 1-7: 2 '
*/
static void parse_cpulist(ul *mask, unsigned max, char *s)
{