xfs: allow ro mounts if rtdev or logdev are read-only

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Allow read-only mounts on rtdevs and logdevs that are marked as
read-only and make sure those mounts can't be remounted read-write.

Use the sb_open_mode helper to make sure that we don't try to open
devices with write access enabled for read-only mounts.

Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

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Hans Holmberg 2025-04-30 08:35:34 +00:00 • committed by Carlos Maiolino

parent 5088aad3d3

commit bfecc4091e

1 changed files with 18 additions and 3 deletions

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fs/xfs/xfs_super.c

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