Re: [RFC][PATCH 4/6] min and max kobjects

From: Nadia Derbey
Date: Thu Jan 25 2007 - 11:32:30 EST


Randy Dunlap wrote:
On Tue, 16 Jan 2007 07:15:20 +0100 Nadia.Derbey@xxxxxxxx wrote:


[PATCH 04/06]

Introduces the kobjects associated to each tunable min and max value


<snip>

Index: linux-2.6.20-rc4/kernel/autotune/akt.c
===================================================================
--- linux-2.6.20-rc4.orig/kernel/autotune/akt.c 2007-01-15 15:13:31.000000000 +0100
+++ linux-2.6.20-rc4/kernel/autotune/akt.c 2007-01-15 15:25:35.000000000 +0100
@@ -203,5 +207,121 @@ ssize_t store_tuning_mode(struct auto_tu
}



<snip>

+
+/*
+ * FUNCTION: Set operation called by tunable_attr_store (i.e. when a
+ * string is stored into /sys/tunables/<tunable>/min).
+ *
+ * PARAMETERS: count: input buffer size (including the '\0')
+ *
+ * RETURN VALUE: >0: number of characters used from the input buffer
+ * <= 0: failure


I would expect a return value of 0 not to indicate failure;
only <0 should do that. So is this a typo or a real case where
a return of 0 indicates failure?

This is a typo



+ */
+ssize_t store_tunable_min(struct auto_tune *tun_addr, const char *buf,
+ size_t count)
+{


<snip>

+/*
+ * FUNCTION: Set operation called by tunable_attr_store (i.e. when a
+ * string is stored into /sys/tunables/<tunable>/max).
+ *
+ * PARAMETERS: count: input buffer size (including the '\0')
+ *
+ * RETURN VALUE: >0: number of characters used from the input buffer
+ * <= 0: failure


same question.

Same answer ;-)





Regards,
Nadia

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