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authorDan Williams <dan.j.williams@intel.com>2009-09-09 02:55:54 +0200
committerDan Williams <dan.j.williams@intel.com>2009-09-09 02:55:54 +0200
commit9134d02bc0af4a8747d448d1f811ec5f8eb96df6 (patch)
tree704c3e5dcc10f360815c4868a74711f82fb62e27 /security/integrity/ima/ima_main.c
parentMerge branch 'dmaengine' into async-tx-next (diff)
parentFix new incorrect error return from do_md_stop. (diff)
downloadlinux-9134d02bc0af4a8747d448d1f811ec5f8eb96df6.tar.xz
linux-9134d02bc0af4a8747d448d1f811ec5f8eb96df6.zip
Merge commit 'md/for-linus' into async-tx-next
Conflicts: drivers/md/raid5.c
Diffstat (limited to 'security/integrity/ima/ima_main.c')
-rw-r--r--security/integrity/ima/ima_main.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 6f611874d10e..101c512564ec 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -238,7 +238,34 @@ out:
}
/*
- * ima_opens_get - increment file counts
+ * ima_counts_put - decrement file counts
+ *
+ * File counts are incremented in ima_path_check. On file open
+ * error, such as ETXTBSY, decrement the counts to prevent
+ * unnecessary imbalance messages.
+ */
+void ima_counts_put(struct path *path, int mask)
+{
+ struct inode *inode = path->dentry->d_inode;
+ struct ima_iint_cache *iint;
+
+ if (!ima_initialized || !S_ISREG(inode->i_mode))
+ return;
+ iint = ima_iint_find_insert_get(inode);
+ if (!iint)
+ return;
+
+ mutex_lock(&iint->mutex);
+ iint->opencount--;
+ if ((mask & MAY_WRITE) || (mask == 0))
+ iint->writecount--;
+ else if (mask & (MAY_READ | MAY_EXEC))
+ iint->readcount--;
+ mutex_unlock(&iint->mutex);
+}
+
+/*
+ * ima_counts_get - increment file counts
*
* - for IPC shm and shmat file.
* - for nfsd exported files.