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Fix compile error in blk-exec.c for !CONFIG_DETECT_HUNG_TASK 

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>
This commit is contained in:
Mark Lord 2010-09-25 11:17:22 +02:00 committed by Jens Axboe
parent c49825facf
commit e4ecda1b60
1 changed files with 3 additions and 0 deletions
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3
include/linux/sched.h
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@ -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. */