gfs2: use bdev_rw_virt in gfs2_read_super

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Switch gfs2_read_super to allocate the superblock buffer using kmalloc
which falls back to the page allocator for PAGE_SIZE allocation but
gives us a kernel virtual address and then use bdev_rw_virt to perform
the synchronous read into it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20250507120451.4000627-11-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2025-05-07 14:04:34 +02:00 • committed by Jens Axboe

parent a216081323

commit 65f8e62593

1 changed files with 9 additions and 15 deletions

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fs/gfs2/ops_fstype.c

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