IMA: drop the inode opencount since it isn't needed for operation
The opencount was used to help debugging to make sure that everything
which created a struct file also correctly made the IMA calls. Since we
moved all of that into the VFS this isn't as necessary. We should be
able to get the same amount of debugging out of just the reader and
write count.
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 7557791..3d70108 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -108,7 +108,6 @@
struct mutex mutex; /* protects: version, flags, digest */
long readcount; /* measured files readcount */
long writecount; /* measured files writecount */
- long opencount; /* opens reference count */
struct kref refcount; /* ima_iint_cache reference count */
};
diff --git a/security/integrity/ima/ima_iint.c b/security/integrity/ima/ima_iint.c
index 8395f0f..8e64313 100644
--- a/security/integrity/ima/ima_iint.c
+++ b/security/integrity/ima/ima_iint.c
@@ -134,11 +134,6 @@
iint->writecount);
iint->writecount = 0;
}
- if (iint->opencount != 0) {
- printk(KERN_INFO "%s: opencount: %ld\n", __func__,
- iint->opencount);
- iint->opencount = 0;
- }
kref_init(&iint->refcount);
kmem_cache_free(iint_cache, iint);
}
@@ -172,7 +167,6 @@
mutex_init(&iint->mutex);
iint->readcount = 0;
iint->writecount = 0;
- iint->opencount = 0;
kref_init(&iint->refcount);
}
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index e662b89..995bd1b 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -122,7 +122,6 @@
{
BUG_ON(!mutex_is_locked(&iint->mutex));
- iint->opencount++;
if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
iint->readcount++;
if (mode & FMODE_WRITE)
@@ -181,7 +180,6 @@
mode_t mode = file->f_mode;
BUG_ON(!mutex_is_locked(&iint->mutex));
- iint->opencount--;
if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
iint->readcount--;
if (mode & FMODE_WRITE) {
@@ -192,13 +190,11 @@
}
}
- if (((iint->opencount < 0) ||
- (iint->readcount < 0) ||
+ if (((iint->readcount < 0) ||
(iint->writecount < 0)) &&
!ima_limit_imbalance(file)) {
- printk(KERN_INFO "%s: open/free imbalance (r:%ld w:%ld o:%ld)\n",
- __func__, iint->readcount, iint->writecount,
- iint->opencount);
+ printk(KERN_INFO "%s: open/free imbalance (r:%ld w:%ld)\n",
+ __func__, iint->readcount, iint->writecount);
dump_stack();
}
}