Improve zpl_permission performance #133
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This function can be frequently called with MAY_EXEC|MAY_NOT_BLOCK during RCU path walk. Where possible we should try not to break out of it. In this case we check whether flag ZFS_NO_EXECS_DENIED is set and check mode (similar to fastexecute check in zfs_acl.c). Signed-off-by: Andrew Walker <awalker@ixsystems.com>
amotin
approved these changes
May 4, 2023
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This function can be frequently called with MAY_EXEC|MAY_NOT_BLOCK during RCU path walk. Where possible we should try not to break out of it. In this case we check whether flag ZFS_NO_EXECS_DENIED is set and check mode (similar to fastexecute check in zfs_acl.c).