Fix compile error in blk-exec.c for !CONFIG_DETECT_HUNG_TASK
authorMark Lord <mlord@pobox.com>
Sat, 25 Sep 2010 09:17:22 +0000 (11:17 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Sat, 25 Sep 2010 09:17:22 +0000 (11:17 +0200)
Ensure that 'sysctl_hung_task_timeout_secs' is defined
even when CONFIG_DETECT_HUNG_TASK is not set.
This way we can safely reference it without need for
ifdefs in the code elsewhere.  eg. in block/blk-exec.c

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
include/linux/sched.h

index 1e2a6db2d7dd03466bf850dc5011860c23e8f9c9..dbafa9e34a2d6ed90c4f7f86016eddde957c44e1 100644 (file)
@@ -336,6 +336,9 @@ extern unsigned long sysctl_hung_task_warnings;
 extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
                                         void __user *buffer,
                                         size_t *lenp, loff_t *ppos);
+#else
+/* Avoid need for ifdefs elsewhere in the code */
+enum { sysctl_hung_task_timeout_secs = 0 };
 #endif
 
 /* Attach to any functions which should be ignored in wchan output. */