Messages in this thread | | | From | Song Liu <> | Date | Tue, 1 Sep 2020 23:06:52 -0700 | Subject | Re: [PATCH 4/9] block: add a new revalidate_disk_size helper |
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On Tue, Sep 1, 2020 at 9:00 AM Christoph Hellwig <hch@lst.de> wrote: > [...]
> drivers/md/md-cluster.c | 6 ++--- > drivers/md/md-linear.c | 2 +- > drivers/md/md.c | 10 ++++-----
For md bits: Acked-by: Song Liu <song@kernel.org>
[...] > > +/** > + * revalidate_disk_size - checks for disk size change and adjusts bdev size. > + * @disk: struct gendisk to check > + * @verbose: if %true log a message about a size change if there is any > + * > + * This routine checks to see if the bdev size does not match the disk size > + * and adjusts it if it differs. When shrinking the bdev size, its all caches > + * are freed. > + */ > +void revalidate_disk_size(struct gendisk *disk, bool verbose) > +{ > + struct block_device *bdev; > + > + /* > + * Hidden disks don't have associated bdev so there's no point in > + * revalidating them. > + */ > + if (disk->flags & GENHD_FL_HIDDEN) > + return; > + > + bdev = bdget_disk(disk, 0); > + if (bdev) { > + check_disk_size_change(disk, bdev, verbose); > + bdput(bdev); > + } > +} > +EXPORT_SYMBOL(revalidate_disk_size);
Shall we use EXPORT_SYMBOL_GPL() here?
[...]
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