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ima: allocating iint improvements

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With IMA-appraisal's removal of the iint mutex and taking the i_mutex
instead, allocating the iint becomes a lot simplier, as we don't need
to be concerned with two processes racing to allocate the iint. This
patch cleans up and improves performance for allocating the iint.

- removed redundant double i_mutex locking
- combined iint allocation with tree search

Changelog v2:
- removed the rwlock/read_lock changes from this patch

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
This commit is contained in:
Dmitry Kasatkin
2011-10-19 12:04:40 +03:00
committed by Mimi Zohar
parent 07f6a79415
commit bf2276d10c
3 changed files with 27 additions and 38 deletions
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7
include/linux/integrity.h
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@@ -22,13 +22,14 @@ enum integrity_status {
/* List of EVM protected security xattrs */
#ifdef CONFIG_INTEGRITY
extern int integrity_inode_alloc(struct inode *inode);
extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
extern void integrity_inode_free(struct inode *inode);
#else
static inline int integrity_inode_alloc(struct inode *inode)
static inline struct integrity_iint_cache *
integrity_inode_get(struct inode *inode)
{
return 0;
return NULL;
}
static inline void integrity_inode_free(struct inode *inode)