Frederick Lawler 30d68cb0c3 ima: process_measurement() needlessly takes inode_lock() on MAY_READ ...

On IMA policy update, if a measure rule exists in the policy,
IMA_MEASURE is set for ima_policy_flags which makes the violation_check
variable always true. Coupled with a no-action on MAY_READ for a
FILE_CHECK call, we're always taking the inode_lock().

This becomes a performance problem for extremely heavy read-only workloads.
Therefore, prevent this only in the case there's no action to be taken.

Signed-off-by: Frederick Lawler <fred@cloudflare.com>
Acked-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

2025-04-22 16:39:32 +02:00

..

evm

integrity: fix typos and spelling errors

2025-02-04 21:36:43 -05:00

ima

ima: process_measurement() needlessly takes inode_lock() on MAY_READ

2025-04-22 16:39:32 +02:00

platform_certs

Hi,

2023-08-29 08:05:18 -07:00

digsig_asymmetric.c

crypto: sm2 - Remove sm2 algorithm

2024-06-07 19:46:39 +08:00

digsig.c

integrity: eliminate unnecessary "Problem loading X.509 certificate" msg

2024-02-16 08:04:17 -05:00

iint.c

integrity: Remove LSM

2024-02-15 23:43:48 -05:00

integrity_audit.c

integrity: check the return value of audit_log_start()

2022-02-02 11:44:23 -05:00

integrity.h

integrity: Use static_assert() to check struct sizes

2024-10-09 22:49:40 -04:00

Kconfig

integrity-v6.7

2023-11-02 06:53:22 -10:00

Makefile

ima: Move to LSM infrastructure

2024-02-15 23:43:46 -05:00