From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Luis Chamberlain <mcgrof@kernel.org>,
Minchan Kim <minchan@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V2 0/4] zram: fix two races and one zram leak
Date: Wed, 20 Oct 2021 09:55:44 +0800 [thread overview]
Message-ID: <20211020015548.2374568-1-ming.lei@redhat.com> (raw)
Hello,
Fixes three issues reported by Luis Chamberlain with one simpler approach:
- race between between zram_reset_device() and disksize_store() (1/4)
- zram leak during unloading module, which is one race between resetting
and removing device (2/4)
- race between zram_remove and disksize_store (3/4)
Also replace replace fsync_bdev with sync_blockdev since no one opens
it.(4/4)
V2:
- take another approach to avoid failing of zram_remove()
- add patch to address race between zram_reset_device() and
disksize_store()
Ming Lei (4):
zram: fix race between zram_reset_device() and disksize_store()
zram: don't fail to remove zram during unloading module
zram: avoid race between zram_remove and disksize_store
zram: replace fsync_bdev with sync_blockdev
drivers/block/zram/zram_drv.c | 39 ++++++++++++++++++++++++++++-------
1 file changed, 31 insertions(+), 8 deletions(-)
--
2.31.1
next reply other threads:[~2021-10-20 1:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 1:55 Ming Lei [this message]
2021-10-20 1:55 ` [PATCH V2 1/4] zram: fix race between zram_reset_device() and disksize_store() Ming Lei
2021-10-21 23:03 ` Luis Chamberlain
2021-10-20 1:55 ` [PATCH V2 2/4] zram: don't fail to remove zram during unloading module Ming Lei
2021-10-21 23:50 ` Luis Chamberlain
2021-10-22 0:38 ` Ming Lei
2021-10-20 1:55 ` [PATCH V2 3/4] zram: avoid race between zram_remove and disksize_store Ming Lei
2021-10-22 19:02 ` Luis Chamberlain
2021-10-20 1:55 ` [PATCH V2 4/4] zram: replace fsync_bdev with sync_blockdev Ming Lei
2021-10-22 19:06 ` Luis Chamberlain
2021-10-20 21:40 ` [PATCH V2 0/4] zram: fix two races and one zram leak Minchan Kim
2021-10-21 17:39 ` Luis Chamberlain
2021-10-21 17:46 ` Luis Chamberlain
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