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From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: David Sterba <dsterba@suse.cz>
Cc: "linux-btrfs @ vger . kernel . org" <linux-btrfs@vger.kernel.org>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH v2 0/5] Fix memory leak on failed cache-writes
Date: Fri, 14 Feb 2020 00:57:58 +0900	[thread overview]
Message-ID: <20200213155803.14799-1-johannes.thumshirn@wdc.com> (raw)

Fstests' test case generic/475 reliably leaks the btrfs_io_ctl::pages
allocated in __btrfs_write_out_cache().

The first patch in this series is freeing the pages when we throw away a dirty
block group. The other patches are small things I noticed while hunting down the
problem and are independant of fix.

Changes to v1:
- Move fix to the first position (David)

Johannes Thumshirn (5):
  btrfs: free allocated pages on failed cache write-out
  btrfs: use inode from io_ctl in io_ctl_prepare_pages
  btrfs: make the uptodate argument of io_ctl_add_pages() boolean.
  btrfs: use standard debug config option to enable free-space-cache
    debug prints
  btrfs: simplify error handling in __btrfs_write_out_cache()

 fs/btrfs/disk-io.c          |  6 +++++
 fs/btrfs/free-space-cache.c | 44 ++++++++++++++++++++-----------------
 fs/btrfs/free-space-cache.h |  1 +
 3 files changed, 31 insertions(+), 20 deletions(-)

-- 
2.24.1


             reply	other threads:[~2020-02-13 15:58 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 15:57 Johannes Thumshirn [this message]
2020-02-13 15:57 ` [PATCH v2 1/5] btrfs: free allocated pages on failed cache write-out Johannes Thumshirn
2020-02-13 15:58 ` [PATCH v2 2/5] btrfs: use inode from io_ctl in io_ctl_prepare_pages Johannes Thumshirn
2020-02-13 15:58 ` [PATCH v2 3/5] btrfs: make the uptodate argument of io_ctl_add_pages() boolean Johannes Thumshirn
2020-02-13 15:58 ` [PATCH v2 4/5] btrfs: use standard debug config option to enable free-space-cache debug prints Johannes Thumshirn
2020-02-13 15:58 ` [PATCH v2 5/5] btrfs: simplify error handling in __btrfs_write_out_cache() Johannes Thumshirn
2020-02-18 16:50 ` [PATCH v2 0/5] Fix memory leak on failed cache-writes David Sterba
2020-02-18 16:54   ` Johannes Thumshirn
2020-02-24 17:49     ` David Sterba
2020-02-25  0:23       ` Johannes Thumshirn
2020-02-25  0:56         ` Johannes Thumshirn

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