From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: [kdave-btrfs-devel:misc-next 47/71] fs/btrfs/raid56.c:1502:5-24: atomic_dec_and_test variation before object free at line 1503.
Date: Wed, 08 Jun 2022 09:09:21 +0800 [thread overview]
Message-ID: <202206080945.WrIdHzB3-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-kernel(a)vger.kernel.org
TO: Christoph Hellwig <hch@lst.de>
CC: David Sterba <dsterba@suse.com>
tree: https://github.com/kdave/btrfs-devel.git misc-next
head: e2a46f3f73fd5aac0241242d535905286a947113
commit: 94fa5c9a0e7e708aac2464c31b6fa062dff0871e [47/71] btrfs: defer I/O completion based on the btrfs_raid_bio
:::::: branch date: 9 hours ago
:::::: commit date: 35 hours ago
config: i386-randconfig-c021 (https://download.01.org/0day-ci/archive/20220608/202206080945.WrIdHzB3-lkp(a)intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
cocci warnings: (new ones prefixed by >>)
>> fs/btrfs/raid56.c:1502:5-24: atomic_dec_and_test variation before object free at line 1503.
vim +1502 fs/btrfs/raid56.c
53b381b3abeb86 David Woodhouse 2013-01-29 1490
94fa5c9a0e7e70 Christoph Hellwig 2022-05-26 1491 static void raid56_bio_end_io(struct bio *bio)
53b381b3abeb86 David Woodhouse 2013-01-29 1492 {
53b381b3abeb86 David Woodhouse 2013-01-29 1493 struct btrfs_raid_bio *rbio = bio->bi_private;
53b381b3abeb86 David Woodhouse 2013-01-29 1494
4e4cbee93d5613 Christoph Hellwig 2017-06-03 1495 if (bio->bi_status)
53b381b3abeb86 David Woodhouse 2013-01-29 1496 fail_bio_stripe(rbio, bio);
53b381b3abeb86 David Woodhouse 2013-01-29 1497 else
5fdb7afc6f94d5 Qu Wenruo 2022-04-01 1498 set_bio_pages_uptodate(rbio, bio);
53b381b3abeb86 David Woodhouse 2013-01-29 1499
53b381b3abeb86 David Woodhouse 2013-01-29 1500 bio_put(bio);
53b381b3abeb86 David Woodhouse 2013-01-29 1501
94fa5c9a0e7e70 Christoph Hellwig 2022-05-26 @1502 if (atomic_dec_and_test(&rbio->stripes_pending))
94fa5c9a0e7e70 Christoph Hellwig 2022-05-26 @1503 queue_work(rbio->bioc->fs_info->endio_raid56_workers,
94fa5c9a0e7e70 Christoph Hellwig 2022-05-26 1504 &rbio->end_io_work);
94fa5c9a0e7e70 Christoph Hellwig 2022-05-26 1505 }
53b381b3abeb86 David Woodhouse 2013-01-29 1506
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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