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-rw-r--r--fs/debugfs/inode.c2
-rw-r--r--fs/namei.c8
-rw-r--r--fs/notify/inotify/inotify_user.c59
-rw-r--r--include/linux/audit.h11
-rw-r--r--include/linux/fsnotify.h11
-rw-r--r--include/linux/magic.h1
-rw-r--r--kernel/auditsc.c7
7 files changed, 23 insertions, 76 deletions
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 274ac86..049d6c3 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -496,7 +496,7 @@ struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
}
d_move(old_dentry, dentry);
fsnotify_move(old_dir->d_inode, new_dir->d_inode, old_name,
- old_dentry->d_name.name, S_ISDIR(old_dentry->d_inode->i_mode),
+ S_ISDIR(old_dentry->d_inode->i_mode),
NULL, old_dentry);
fsnotify_oldname_free(old_name);
unlock_rename(new_dir, old_dir);
diff --git a/fs/namei.c b/fs/namei.c
index 54d33df..0741c69 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1334,7 +1334,7 @@ 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->d_name.name, victim, dir);
+ audit_inode_child(victim, dir);
error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
if (error)
@@ -2663,11 +2663,9 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
error = vfs_rename_dir(old_dir,old_dentry,new_dir,new_dentry);
else
error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry);
- if (!error) {
- const char *new_name = old_dentry->d_name.name;
- fsnotify_move(old_dir, new_dir, old_name, new_name, is_dir,
+ if (!error)
+ fsnotify_move(old_dir, new_dir, old_name, is_dir,
new_dentry->d_inode, old_dentry);
- }
fsnotify_oldname_free(old_name);
return error;
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index a94e8bd..472cdf2 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -29,14 +29,12 @@
#include <linux/init.h> /* module_init */
#include <linux/inotify.h>
#include <linux/kernel.h> /* roundup() */
-#include <linux/magic.h> /* superblock magic number */
-#include <linux/mount.h> /* mntget */
#include <linux/namei.h> /* LOOKUP_FOLLOW */
-#include <linux/path.h> /* struct path */
#include <linux/sched.h> /* struct user */
#include <linux/slab.h> /* struct kmem_cache */
#include <linux/syscalls.h>
#include <linux/types.h>
+#include <linux/anon_inodes.h>
#include <linux/uaccess.h>
#include <linux/poll.h>
#include <linux/wait.h>
@@ -45,8 +43,6 @@
#include <asm/ioctls.h>
-static struct vfsmount *inotify_mnt __read_mostly;
-
/* these are configurable via /proc/sys/fs/inotify/ */
static int inotify_max_user_instances __read_mostly;
static int inotify_max_queued_events __read_mostly;
@@ -645,9 +641,7 @@ SYSCALL_DEFINE1(inotify_init1, int, flags)
{
struct fsnotify_group *group;
struct user_struct *user;
- struct file *filp;
- struct path path;
- int fd, ret;
+ int ret;
/* Check the IN_* constants for consistency. */
BUILD_BUG_ON(IN_CLOEXEC != O_CLOEXEC);
@@ -656,10 +650,6 @@ SYSCALL_DEFINE1(inotify_init1, int, flags)
if (flags & ~(IN_CLOEXEC | IN_NONBLOCK))
return -EINVAL;
- fd = get_unused_fd_flags(flags & O_CLOEXEC);
- if (fd < 0)
- return fd;
-
user = get_current_user();
if (unlikely(atomic_read(&user->inotify_devs) >=
inotify_max_user_instances)) {
@@ -676,27 +666,14 @@ SYSCALL_DEFINE1(inotify_init1, int, flags)
atomic_inc(&user->inotify_devs);
- path.mnt = inotify_mnt;
- path.dentry = inotify_mnt->mnt_root;
- path_get(&path);
- filp = alloc_file(&path, FMODE_READ, &inotify_fops);
- if (!filp)
- goto Enfile;
+ ret = anon_inode_getfd("inotify", &inotify_fops, group,
+ O_RDONLY | flags);
+ if (ret >= 0)
+ return ret;
- filp->f_flags = O_RDONLY | (flags & O_NONBLOCK);
- filp->private_data = group;
-
- fd_install(fd, filp);
-
- return fd;
-
-Enfile:
- ret = -ENFILE;
- path_put(&path);
atomic_dec(&user->inotify_devs);
out_free_uid:
free_uid(user);
- put_unused_fd(fd);
return ret;
}
@@ -783,20 +760,6 @@ out:
return ret;
}
-static int
-inotify_get_sb(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data, struct vfsmount *mnt)
-{
- return get_sb_pseudo(fs_type, "inotify", NULL,
- INOTIFYFS_SUPER_MAGIC, mnt);
-}
-
-static struct file_system_type inotify_fs_type = {
- .name = "inotifyfs",
- .get_sb = inotify_get_sb,
- .kill_sb = kill_anon_super,
-};
-
/*
* inotify_user_setup - Our initialization function. Note that we cannnot return
* error because we have compiled-in VFS hooks. So an (unlikely) failure here
@@ -804,16 +767,6 @@ static struct file_system_type inotify_fs_type = {
*/
static int __init inotify_user_setup(void)
{
- int ret;
-
- ret = register_filesystem(&inotify_fs_type);
- if (unlikely(ret))
- panic("inotify: register_filesystem returned %d!\n", ret);
-
- inotify_mnt = kern_mount(&inotify_fs_type);
- if (IS_ERR(inotify_mnt))
- panic("inotify: kern_mount ret %ld!\n", PTR_ERR(inotify_mnt));
-
inotify_inode_mark_cachep = KMEM_CACHE(inotify_inode_mark_entry, SLAB_PANIC);
event_priv_cachep = KMEM_CACHE(inotify_event_private_data, SLAB_PANIC);
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 3c7a358..f391d45 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -424,7 +424,7 @@ extern void audit_syscall_exit(int failed, long return_code);
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 char *dname, const struct dentry *dentry,
+extern void __audit_inode_child(const struct dentry *dentry,
const struct inode *parent);
extern void __audit_ptrace(struct task_struct *t);
@@ -442,11 +442,10 @@ 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 char *dname,
- const struct dentry *dentry,
+static inline void audit_inode_child(const struct dentry *dentry,
const struct inode *parent) {
if (unlikely(!audit_dummy_context()))
- __audit_inode_child(dname, dentry, parent);
+ __audit_inode_child(dentry, parent);
}
void audit_core_dumps(long signr);
@@ -544,9 +543,9 @@ extern int audit_signals;
#define audit_getname(n) do { ; } while (0)
#define audit_putname(n) do { ; } while (0)
#define __audit_inode(n,d) do { ; } while (0)
-#define __audit_inode_child(d,i,p) do { ; } while (0)
+#define __audit_inode_child(i,p) do { ; } while (0)
#define audit_inode(n,d) do { ; } while (0)
-#define audit_inode_child(d,i,p) do { ; } while (0)
+#define audit_inode_child(i,p) do { ; } while (0)
#define audit_core_dumps(i) do { ; } while (0)
#define auditsc_get_stamp(c,t,s) (0)
#define audit_get_loginuid(t) (-1)
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 936f9aa..df8fd9a 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -65,7 +65,7 @@ static inline void fsnotify_link_count(struct inode *inode)
* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
*/
static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
- const char *old_name, const char *new_name,
+ const char *old_name,
int isdir, struct inode *target, struct dentry *moved)
{
struct inode *source = moved->d_inode;
@@ -73,6 +73,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
u32 fs_cookie = fsnotify_get_cookie();
__u32 old_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_FROM);
__u32 new_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_TO);
+ const char *new_name = moved->d_name.name;
if (old_dir == new_dir)
old_dir_mask |= FS_DN_RENAME;
@@ -103,7 +104,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
- audit_inode_child(new_name, moved, new_dir);
+ audit_inode_child(moved, new_dir);
}
/*
@@ -146,7 +147,7 @@ static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
{
inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
dentry->d_inode);
- audit_inode_child(dentry->d_name.name, dentry, inode);
+ audit_inode_child(dentry, inode);
fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
@@ -161,7 +162,7 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name,
inode);
fsnotify_link_count(inode);
- audit_inode_child(new_dentry->d_name.name, new_dentry, dir);
+ audit_inode_child(new_dentry, dir);
fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0);
}
@@ -175,7 +176,7 @@ static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
struct inode *d_inode = dentry->d_inode;
inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
- audit_inode_child(dentry->d_name.name, dentry, inode);
+ audit_inode_child(dentry, inode);
fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
diff --git a/include/linux/magic.h b/include/linux/magic.h
index 76285e0..eb9800f 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -52,7 +52,6 @@
#define CGROUP_SUPER_MAGIC 0x27e0eb
#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA
-#define INOTIFYFS_SUPER_MAGIC 0x2BAD1DEA
#define STACK_END_MAGIC 0x57AC6E9D
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index fc0f928..f3a461c 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1988,7 +1988,6 @@ void __audit_inode(const char *name, const struct dentry *dentry)
/**
* audit_inode_child - collect inode info for created/removed objects
- * @dname: inode's dentry name
* @dentry: dentry being audited
* @parent: inode of dentry parent
*
@@ -2000,13 +1999,14 @@ void __audit_inode(const char *name, const struct dentry *dentry)
* must be hooked prior, in order to capture the target inode during
* unsuccessful attempts.
*/
-void __audit_inode_child(const char *dname, const struct dentry *dentry,
+void __audit_inode_child(const struct dentry *dentry,
const struct inode *parent)
{
int idx;
struct audit_context *context = current->audit_context;
const char *found_parent = NULL, *found_child = NULL;
const struct inode *inode = dentry->d_inode;
+ const char *dname = dentry->d_name.name;
int dirlen = 0;
if (!context->in_syscall)
@@ -2014,9 +2014,6 @@ void __audit_inode_child(const char *dname, const struct dentry *dentry,
if (inode)
handle_one(inode);
- /* determine matching parent */
- if (!dname)
- goto add_names;
/* parent is more likely, look for it first */
for (idx = 0; idx < context->name_count; idx++) {
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