From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
New block-iopoll sysctl should be surrounded by CONFIG_BLOCK to
prevent build error:
kernel/built-in.o:(.data+0x2990): undefined reference to `blk_iopoll_enabled'
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
---
kernel/sysctl.c | 2 ++
1 file changed, 2 insertions(+)
--- linux-next-20090807.orig/kernel/sysctl.c
+++ linux-next-20090807/kernel/sysctl.c
@@ -990,6 +990,7 @@ static struct ctl_table kern_table[] = {
.proc_handler = &proc_dointvec,
},
#endif
+#ifdef CONFIG_BLOCK
{
.ctl_name = CTL_UNNUMBERED,
.procname = "blk_iopoll",
@@ -998,6 +999,7 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#endif
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
---
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/
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