ALSA: usb-audio: add support for Akai MPD16
[safe/jmp/linux-2.6] / ipc / shm.c
index 11bec62..1a314c8 100644 (file)
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -39,7 +39,6 @@
 #include <linux/nsproxy.h>
 #include <linux/mount.h>
 #include <linux/ipc_namespace.h>
-#include <linux/ima.h>
 
 #include <asm/uaccess.h>
 
@@ -101,6 +100,7 @@ static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 void shm_exit_ns(struct ipc_namespace *ns)
 {
        free_ipcs(ns, &shm_ids(ns), do_shm_rmid);
+       idr_destroy(&ns->ids[IPC_SHM_IDS].ipcs_idr);
 }
 #endif
 
@@ -298,6 +298,9 @@ static const struct file_operations shm_file_operations = {
        .mmap           = shm_mmap,
        .fsync          = shm_fsync,
        .release        = shm_release,
+#ifndef CONFIG_MMU
+       .get_unmapped_area      = shm_get_unmapped_area,
+#endif
 };
 
 static const struct file_operations shm_file_operations_huge = {
@@ -761,8 +764,7 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
                        if (euid != shp->shm_perm.uid &&
                            euid != shp->shm_perm.cuid)
                                goto out_unlock;
-                       if (cmd == SHM_LOCK &&
-                           !current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur)
+                       if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK))
                                goto out_unlock;
                }
 
@@ -878,8 +880,8 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
        if (err)
                goto out_unlock;
 
-       path.dentry = dget(shp->shm_file->f_path.dentry);
-       path.mnt    = shp->shm_file->f_path.mnt;
+       path = shp->shm_file->f_path;
+       path_get(&path);
        shp->shm_nattch++;
        size = i_size_read(path.dentry->d_inode);
        shm_unlock(shp);
@@ -889,13 +891,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
        if (!sfd)
                goto out_put_dentry;
 
-       file = alloc_file(path.mnt, path.dentry, f_mode,
-                       is_file_hugepages(shp->shm_file) ?
+       file = alloc_file(&path, f_mode,
+                         is_file_hugepages(shp->shm_file) ?
                                &shm_file_operations_huge :
                                &shm_file_operations);
        if (!file)
                goto out_free;
-       ima_counts_get(file);
 
        file->private_data = sfd;
        file->f_mapping = shp->shm_file->f_mapping;
@@ -950,7 +951,7 @@ out_unlock:
 out_free:
        kfree(sfd);
 out_put_dentry:
-       dput(path.dentry);
+       path_put(&path);
        goto out_nattch;
 }