IMA: use unsigned int instead of long for counters
Currently IMA uses 2 longs in struct inode. To save space (and as it
seems impossible to overflow 32 bits) we switch these to unsigned int.
The switch to unsigned does require slightly different checks for
underflow, but it isn't complex.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 3d70108..000d13a 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -106,8 +106,8 @@
unsigned long flags;
u8 digest[IMA_DIGEST_SIZE];
struct mutex mutex; /* protects: version, flags, digest */
- long readcount; /* measured files readcount */
- long writecount; /* measured files writecount */
+ unsigned int readcount; /* measured files readcount */
+ unsigned int writecount;/* measured files writecount */
struct kref refcount; /* ima_iint_cache reference count */
};