Re: disk revalidation updates and OOM

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On Mon, Mar 02, 2020 at 11:55:44AM +0800, He Zhe wrote:
> Hi,
> 
> Since the following commit
> https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-5.5/disk-revalidate&id=6917d0689993f46d97d40dd66c601d0fd5b1dbdd
> until now(v5.6-rc4),
> 
> If we start udisksd service of systemd(v244), systemd-udevd will scan /dev/hdc
> (the cdrom device created by default in qemu(v4.2.0)). systemd-udevd will
> endlessly run and cause OOM.
> 
> 
> 
> It works well by reverting the following series of commits.
> 
> 979c690d block: move clearing bd_invalidated into check_disk_size_change
> f0b870d block: remove (__)blkdev_reread_part as an exported API
> 142fe8f block: fix bdev_disk_changed for non-partitioned devices
> a1548b6 block: move rescan_partitions to fs/block_dev.c
> 6917d06 block: merge invalidate_partitions into rescan_partitions

So this is the exact requirement of commits to be reverted from a bisect
or just a first guess?



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