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ima: simplify conditional statement to improve performance

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Precede bit testing before string comparison makes code
faster. Also refactor statement as a single line pointer
assignment. Logic is following: we set 'xattr_ptr' to read
xattr value when we will do appraisal or in any case when
measurement template is other than 'ima'.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
This commit is contained in:
Dmitry Kasatkin 2014-08-22 09:43:55 +03:00 committed by Mimi Zohar
parent 65d98f3be2
commit f68c05f4d2
1 changed files with 2 additions and 4 deletions
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6
security/integrity/ima/ima_main.c
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@ -206,10 +206,8 @@ static int process_measurement(struct file *file, const char *filename,
} }
template_desc = ima_template_desc_current(); template_desc = ima_template_desc_current();
if (strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) { if ((action & IMA_APPRAISE_SUBMASK) ||
if (action & IMA_APPRAISE_SUBMASK) strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0)
xattr_ptr = &xattr_value;
} else
xattr_ptr = &xattr_value; xattr_ptr = &xattr_value;
rc = ima_collect_measurement(iint, file, xattr_ptr, &xattr_len); rc = ima_collect_measurement(iint, file, xattr_ptr, &xattr_len);