evm: stop avoidably reading i_writecount in evm_file_release

The EVM_NEW_FILE flag is unset if the file already existed at the time
of open and this can be checked without looking at i_writecount.

Not accessing it reduces traffic on the cacheline during parallel open
of the same file and drop the evm_file_release routine from second place
to bottom of the profile.

Fixes: 75a323e604fc ("evm: Make it independent from 'integrity' LSM")
Signed-off-by: Mateusz Guzik <[email protected]>
Reviewed-by: Roberto Sassu <[email protected]>
Cc: [email protected] # 6.9+
Signed-off-by: Mimi Zohar <[email protected]>

0 files changed, 0 insertions, 0 deletions