From: Roman Pen <roman.penyaev@profitbricks.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Roman Pen <roman.penyaev@profitbricks.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Dan Williams <dan.j.williams@intel.com>,
Gi-Oh Kim <gi-oh.kim@profitbricks.com>,
Jens Axboe <axboe@kernel.dk>, Len Brown <len.brown@intel.com>,
Ming Lei <tom.leiming@gmail.com>, Pavel Machek <pavel@ucw.cz>,
Sagi Grimberg <sagig@mellanox.com>, Tejun Heo <tj@kernel.org>,
Vishal Verma <vishal.l.verma@intel.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: [PATCH 0/4] introduce new put_getdisk() call
Date: Mon, 1 Feb 2016 15:51:51 +0100 [thread overview]
Message-ID: <1454338315-13465-1-git-send-email-roman.penyaev@profitbricks.com> (raw)
Hello.
In this patchset in the first patch I fixed module reference leak inside
blk-cgroup.c. In other patches I switched to a new put_getdisk() call,
which should be used if the disk was received by get_disk() or get_gendisk()
functions, which internally increase module reference.
The idea is to avoid confusion in the future and to have symmetric calls:
alloc_disk() -> put_disk() [as it is done in all the block drivers]
and
get_gendisk() -> put_gendisk() [if you need to find a disk by minor,major]
The second sequence internally increases disk owner module reference on
get and decreases it on put.
Roman Pen (4):
block: fix module reference leak on put_disk() call for cgroups
throttle
block: introduce new call put_gendisk() in genhd.c
block,fs: switch to a new put_gendisk() call
hibernate: fix disk and module leak on successfull resume
block/blk-cgroup.c | 6 ++---
block/genhd.c | 59 +++++++++++++++++++++++++++++++++++++++++++++---
fs/block_dev.c | 24 ++++++--------------
include/linux/genhd.h | 1 +
kernel/power/hibernate.c | 5 +++-
5 files changed, 71 insertions(+), 24 deletions(-)
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Gi-Oh Kim <gi-oh.kim@profitbricks.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Len Brown <len.brown@intel.com>
Cc: Ming Lei <tom.leiming@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: linux-block@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
--
2.6.2
next reply other threads:[~2016-02-01 14:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-01 14:51 Roman Pen [this message]
2016-02-01 14:51 ` [PATCH 1/4] block: fix module reference leak on put_disk() call for cgroups throttle Roman Pen
2016-02-03 10:40 ` Gi-Oh Kim
2016-02-01 14:51 ` [PATCH 2/4] block: introduce new call put_gendisk() in genhd.c Roman Pen
2016-02-01 14:51 ` [PATCH 3/4] block,fs: switch to a new put_gendisk() call Roman Pen
2016-02-01 14:51 ` [PATCH 4/4] hibernate: fix disk and module leak on successfull resume Roman Pen
2016-02-03 1:37 ` Rafael J. Wysocki
2016-02-01 17:16 ` [PATCH 0/4] introduce new put_getdisk() call Tejun Heo
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