From: Luis Chamberlain <mcgrof@kernel.org>
To: minchan@kernel.org, gregkh@linuxfoundation.org, jeyu@kernel.org,
ngupta@vflare.org, sergey.senozhatsky.work@gmail.com
Cc: mcgrof@kernel.org, axboe@kernel.dk, mbenes@suse.com,
jpoimboe@redhat.com, tglx@linutronix.de, keescook@chromium.org,
jikos@kernel.org, rostedt@goodmis.org, peterz@infradead.org,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 0/3] zram: fix few sysfs races
Date: Mon, 21 Jun 2021 16:30:10 -0700 [thread overview]
Message-ID: <20210621233013.562641-1-mcgrof@kernel.org> (raw)
This v3 changes the approach for the deadlock fix with wrappers which
provide the same solution of the try_module_get(). This is less code,
should be easier to review.
The last patch is also new. I dropped the bdget() stuff for the block
device and instead am doing a direct kobject fetch as well as a bus get to
provide a more generic solution without having to require each type to
implement its own refcounts.
This series also available on my linux-next repository:
https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?h=20210427-sysfs-fix-races-v5
Luis Chamberlain (3):
zram: fix crashes due to use of cpu hotplug multistate
zram: fix deadlock with sysfs attribute usage and driver removal
drivers/base/core: refcount kobject and bus on device attribute read /
store
drivers/base/base.h | 2 +
drivers/base/bus.c | 4 +-
drivers/base/core.c | 42 +++++++++-
drivers/block/zram/zram_drv.c | 141 ++++++++++++++++++++++++----------
drivers/block/zram/zram_drv.h | 40 ++++++++++
5 files changed, 181 insertions(+), 48 deletions(-)
--
2.30.2
next reply other threads:[~2021-06-21 23:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 23:30 Luis Chamberlain [this message]
2021-06-21 23:30 ` [PATCH v3 1/3] zram: fix crashes due to use of cpu hotplug multistate Luis Chamberlain
2021-06-22 7:39 ` Greg KH
2021-06-22 15:12 ` Luis Chamberlain
2021-06-21 23:36 ` [PATCH v3 2/3] zram: fix deadlock with sysfs attribute usage and driver removal Luis Chamberlain
2021-06-22 7:41 ` Greg KH
2021-06-22 15:27 ` Luis Chamberlain
2021-06-22 16:27 ` Greg KH
2021-06-22 16:40 ` Luis Chamberlain
2021-06-22 16:51 ` Greg KH
2021-06-22 17:00 ` Luis Chamberlain
2021-06-22 7:45 ` Greg KH
2021-06-22 16:32 ` Luis Chamberlain
2021-06-22 17:16 ` Greg KH
2021-06-22 17:27 ` Luis Chamberlain
2021-06-22 18:05 ` Greg KH
2021-06-22 19:57 ` Luis Chamberlain
2021-06-21 23:36 ` [PATCH v3 3/3] drivers/base/core: refcount kobject and bus on device attribute read / store Luis Chamberlain
2021-06-22 7:46 ` Greg KH
2021-06-22 16:44 ` Luis Chamberlain
2021-06-22 16:48 ` Greg KH
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