s390/zcrypt: Introduce pre-allocated device status array for ep11 misc

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Introduce a pre-allocated device status array memory together with
a mutex controlling the occupation to be used by the findcard()
function. Limit the device status array to max 128 cards and max
128 domains to reduce the size of this pre-allocated memory to 64 KB.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Link: https://lore.kernel.org/r/20250424133619.16495-11-freude@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Harald Freudenberger 2025-04-24 15:36:04 +02:00 • committed by Heiko Carstens

parent ef800db615

commit d2fd25b390

1 changed files with 36 additions and 10 deletions

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drivers/s390/crypto/zcrypt_ep11misc.c

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