linux-kernel - Re: [PATCH] fuse: freezing abort when use wait_event_killable{,

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Date:   Sat, 3 Dec 2016 16:54:45 +0800
From:   kbuild test robot <lkp@...el.com>
To:     cuilifei <cuilifei@...omi.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org, miklos@...redi.hu,
        cuilifei <cuilifei@...omi.com>
Subject: Re: [PATCH] fuse: freezing abort when use
 wait_event_killable{,_exclusive}().

Hi cuilifei,

[auto build test ERROR on fuse/for-next]
[also build test ERROR on v4.9-rc7 next-20161202]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/cuilifei/fuse-freezing-abort-when-use-wait_event_killable-_exclusive/20161203-120253
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
config: x86_64-rhel-7.2 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   fs/fuse/dev.c: In function '__fuse_get_req':
>> fs/fuse/dev.c:38:11: error: implicit declaration of function 'try_to_freeze' [-Werror=implicit-function-declaration]
     } while (try_to_freeze());     \
              ^
   fs/fuse/dev.c:174:10: note: in expansion of macro 'wait_fatal_freezable'
      intr = wait_fatal_freezable(fc->blocked_waitq,
             ^~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/try_to_freeze +38 fs/fuse/dev.c

    32								condition);	\
    33			else							\
    34				__ret = wait_event_interruptible(wq,		\
    35								condition);	\
    36			if (!__ret || fatal_signal_pending(current))		\
    37				break;						\
  > 38		} while (try_to_freeze());					\
    39		__ret;								\
    40	})
    41	

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