dm integrity: reduce vmalloc space footprint on 32-bit architectures

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commit 6d50eb4725 upstream.

It was reported that dm-integrity runs out of vmalloc space on 32-bit
architectures. On x86, there is only 128MiB vmalloc space and dm-integrity
consumes it quickly because it has a 64MiB journal and 8MiB recalculate
buffer.

Fix this by reducing the size of the journal to 4MiB and the size of
the recalculate buffer to 1MiB, so that multiple dm-integrity devices
can be created and activated on 32-bit architectures.

Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Mikulas Patocka 2023-06-26 16:44:34 +02:00 • committed by Greg Kroah-Hartman

parent ef709350ef

commit b933df9dda

1 changed files with 2 additions and 2 deletions

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drivers/md/dm-integrity.c

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