linux-kernel - Re: [PATCH 1/3] power, vfs: move away from PF_KTHREAD freezing in favor of fs freezing

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Message-ID: <201510302228.xYfalpXN%fengguang.wu@intel.com>
Date:	Fri, 30 Oct 2015 22:04:53 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Jiri Kosina <jikos@...nel.org>
Cc:	kbuild-all@...org,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Dave Chinner <david@...morbit.com>, Jan Kara <jack@...e.cz>,
	Christoph Hellwig <hch@....de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Al Viro <viro@...IV.linux.org.uk>, Tejun Heo <tj@...nel.org>,
	Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 1/3] power, vfs: move away from PF_KTHREAD freezing in
 favor of fs freezing

Hi Jiri,

[auto build test WARNING on v4.3-rc7 -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url:    https://github.com/0day-ci/linux/commits/Jiri-Kosina/PM-vfs-use-filesystem-freezing-instead-of-kthread-freezer/20151030-215223
config: x86_64-randconfig-x014-10300134 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   kernel/power/hibernate.c: In function 'hibernation_snapshot':
>> kernel/power/hibernate.c:401:2: warning: label 'Cleanup' defined but not used [-Wunused-label]
     Cleanup:
     ^

vim +/Cleanup +401 kernel/power/hibernate.c

64a473cb7 kernel/power/hibernate.c Rafael J. Wysocki 2009-07-08  385  		swsusp_free();
64a473cb7 kernel/power/hibernate.c Rafael J. Wysocki 2009-07-08  386  
91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17  387  	msg = in_suspend ? (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE;
91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17  388  	dpm_resume(msg);
c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03  389  
c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03  390  	if (error || !in_suspend)
c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03  391  		pm_restore_gfp_mask();
c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03  392  
7777fab98 kernel/power/disk.c      Rafael J. Wysocki 2007-07-19  393  	resume_console();
91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17  394  	dpm_complete(msg);
91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17  395  
caea99ef3 kernel/power/disk.c      Rafael J. Wysocki 2008-01-08  396   Close:
caea99ef3 kernel/power/disk.c      Rafael J. Wysocki 2008-01-08  397  	platform_end(platform_mode);
7777fab98 kernel/power/disk.c      Rafael J. Wysocki 2007-07-19  398  	return error;
d8f3de0d2 kernel/power/disk.c      Rafael J. Wysocki 2008-06-12  399  
51d6ff7ac kernel/power/hibernate.c Srivatsa S. Bhat  2012-02-04  400   Thaw:
bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22 @401   Cleanup:
bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22  402  	swsusp_free();
bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22  403  	goto Close;
7777fab98 kernel/power/disk.c      Rafael J. Wysocki 2007-07-19  404  }
7777fab98 kernel/power/disk.c      Rafael J. Wysocki 2007-07-19  405  
7777fab98 kernel/power/disk.c      Rafael J. Wysocki 2007-07-19  406  /**
f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24  407   * resume_target_kernel - Restore system state from a hibernation image.
f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24  408   * @platform_mode: Whether or not to use the platform driver.
f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24  409   *

:::::: The code at line 401 was first introduced by commit
:::::: bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6 PM / Hibernate: Do not leak memory in error/test code paths

:::::: TO: Rafael J. Wysocki <rjw@...k.pl>
:::::: CC: Rafael J. Wysocki <rjw@...k.pl>

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