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authorJeff Layton <jlayton@redhat.com>2012-10-10 15:25:21 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-10-12 00:32:00 -0400
commitc43a25abba97c7d87131e71db6be24b24d7791a5 (patch)
tree0fe959853254064e17805ca111838e7869720e43
parent9cec9d68ae53aae60b4a1fca4505c75a1d026392 (diff)
downloadop-kernel-dev-c43a25abba97c7d87131e71db6be24b24d7791a5.zip
op-kernel-dev-c43a25abba97c7d87131e71db6be24b24d7791a5.tar.gz
audit: reverse arguments to audit_inode_child
Most of the callers get called with an inode and dentry in the reverse order. The compiler then has to reshuffle the arg registers and/or stack in order to pass them on to audit_inode_child. Reverse those arguments for a micro-optimization. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/btrfs/ioctl.c2
-rw-r--r--fs/namei.c2
-rw-r--r--include/linux/audit.h18
-rw-r--r--include/linux/fsnotify.h8
-rw-r--r--kernel/auditsc.c8
5 files changed, 19 insertions, 19 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index e568c47..49f4d59 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -638,7 +638,7 @@ static int btrfs_may_delete(struct inode *dir,struct dentry *victim,int isdir)
return -ENOENT;
BUG_ON(victim->d_parent->d_inode != dir);
- audit_inode_child(victim, dir);
+ audit_inode_child(dir, victim);
error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
if (error)
diff --git a/fs/namei.c b/fs/namei.c
index f04ce11..a7ad35c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2176,7 +2176,7 @@ static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
return -ENOENT;
BUG_ON(victim->d_parent->d_inode != dir);
- audit_inode_child(victim, dir);
+ audit_inode_child(dir, victim);
error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
if (error)
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 2c83e5f..8c66fc2 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -464,8 +464,8 @@ extern void __audit_syscall_exit(int ret_success, long ret_value);
extern void __audit_getname(const char *name);
extern void audit_putname(const char *name);
extern void __audit_inode(const char *name, const struct dentry *dentry);
-extern void __audit_inode_child(const struct dentry *dentry,
- const struct inode *parent);
+extern void __audit_inode_child(const struct inode *parent,
+ const struct dentry *dentry);
extern void __audit_seccomp(unsigned long syscall, long signr, int code);
extern void __audit_ptrace(struct task_struct *t);
@@ -504,10 +504,10 @@ static inline void audit_inode(const char *name, const struct dentry *dentry) {
if (unlikely(!audit_dummy_context()))
__audit_inode(name, dentry);
}
-static inline void audit_inode_child(const struct dentry *dentry,
- const struct inode *parent) {
+static inline void audit_inode_child(const struct inode *parent,
+ const struct dentry *dentry) {
if (unlikely(!audit_dummy_context()))
- __audit_inode_child(dentry, parent);
+ __audit_inode_child(parent, dentry);
}
void audit_core_dumps(long signr);
@@ -657,13 +657,13 @@ static inline void audit_putname(const char *name)
{ }
static inline void __audit_inode(const char *name, const struct dentry *dentry)
{ }
-static inline void __audit_inode_child(const struct dentry *dentry,
- const struct inode *parent)
+static inline void __audit_inode_child(const struct inode *parent,
+ const struct dentry *dentry)
{ }
static inline void audit_inode(const char *name, const struct dentry *dentry)
{ }
-static inline void audit_inode_child(const struct dentry *dentry,
- const struct inode *parent)
+static inline void audit_inode_child(const struct inode *parent,
+ const struct dentry *dentry)
{ }
static inline void audit_core_dumps(long signr)
{ }
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index a6dfe69..9c28471 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -109,7 +109,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
if (source)
fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE, NULL, 0);
- audit_inode_child(moved, new_dir);
+ audit_inode_child(new_dir, moved);
}
/*
@@ -155,7 +155,7 @@ static inline void fsnotify_inoderemove(struct inode *inode)
*/
static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
{
- audit_inode_child(dentry, inode);
+ audit_inode_child(inode, dentry);
fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
@@ -168,7 +168,7 @@ static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct dentry *new_dentry)
{
fsnotify_link_count(inode);
- audit_inode_child(new_dentry, dir);
+ audit_inode_child(dir, new_dentry);
fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0);
}
@@ -181,7 +181,7 @@ static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
__u32 mask = (FS_CREATE | FS_ISDIR);
struct inode *d_inode = dentry->d_inode;
- audit_inode_child(dentry, inode);
+ audit_inode_child(inode, dentry);
fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 2e48114..40743af 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -2166,9 +2166,9 @@ out:
}
/**
- * audit_inode_child - collect inode info for created/removed objects
- * @dentry: dentry being audited
+ * __audit_inode_child - collect inode info for created/removed objects
* @parent: inode of dentry parent
+ * @dentry: dentry being audited
*
* For syscalls that create or remove filesystem objects, audit_inode
* can only collect information for the filesystem object's parent.
@@ -2178,8 +2178,8 @@ out:
* must be hooked prior, in order to capture the target inode during
* unsuccessful attempts.
*/
-void __audit_inode_child(const struct dentry *dentry,
- const struct inode *parent)
+void __audit_inode_child(const struct inode *parent,
+ const struct dentry *dentry)
{
struct audit_context *context = current->audit_context;
const char *found_parent = NULL, *found_child = NULL;
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