diff options
| -rw-r--r-- | security/integrity/iint.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/security/integrity/iint.c b/security/integrity/iint.c index c91a436e13ac..d82a5a13d855 100644 --- a/security/integrity/iint.c +++ b/security/integrity/iint.c @@ -22,7 +22,7 @@ #include "integrity.h" static struct rb_root integrity_iint_tree = RB_ROOT; -static DEFINE_SPINLOCK(integrity_iint_lock); +static DEFINE_RWLOCK(integrity_iint_lock); static struct kmem_cache *iint_cache __read_mostly; int iint_initialized; @@ -35,8 +35,6 @@ static struct integrity_iint_cache *__integrity_iint_find(struct inode *inode) struct integrity_iint_cache *iint; struct rb_node *n = integrity_iint_tree.rb_node; - assert_spin_locked(&integrity_iint_lock); - while (n) { iint = rb_entry(n, struct integrity_iint_cache, rb_node); @@ -63,9 +61,9 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode) if (!IS_IMA(inode)) return NULL; - spin_lock(&integrity_iint_lock); + read_lock(&integrity_iint_lock); iint = __integrity_iint_find(inode); - spin_unlock(&integrity_iint_lock); + read_unlock(&integrity_iint_lock); return iint; } @@ -100,7 +98,7 @@ struct integrity_iint_cache *integrity_inode_get(struct inode *inode) if (!iint) return NULL; - spin_lock(&integrity_iint_lock); + write_lock(&integrity_iint_lock); p = &integrity_iint_tree.rb_node; while (*p) { @@ -119,7 +117,7 @@ struct integrity_iint_cache *integrity_inode_get(struct inode *inode) rb_link_node(node, parent, p); rb_insert_color(node, &integrity_iint_tree); - spin_unlock(&integrity_iint_lock); + write_unlock(&integrity_iint_lock); return iint; } @@ -136,10 +134,10 @@ void integrity_inode_free(struct inode *inode) if (!IS_IMA(inode)) return; - spin_lock(&integrity_iint_lock); + write_lock(&integrity_iint_lock); iint = __integrity_iint_find(inode); rb_erase(&iint->rb_node, &integrity_iint_tree); - spin_unlock(&integrity_iint_lock); + write_unlock(&integrity_iint_lock); iint_free(iint); } |