block/ioctl.c and fs/partition/check.c: check value returned by add_partition()

[pandora-kernel.git] / fs / namespace.c

diff --git a/fs/namespace.c b/fs/namespace.c
index f48f981..4f6f763 100644 (file)
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -14,7 +14,6 @@
 #include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/quotaops.h>
 #include <linux/acct.h>
 #include <linux/capability.h>
 #include <linux/cpumask.h>
@@ -751,7 +750,7 @@ struct proc_fs_info {
        const char *str;
 };
 
-static void show_sb_opts(struct seq_file *m, struct super_block *sb)
+static int show_sb_opts(struct seq_file *m, struct super_block *sb)
 {
        static const struct proc_fs_info fs_info[] = {
                { MS_SYNCHRONOUS, ",sync" },
@@ -765,6 +764,8 @@ static void show_sb_opts(struct seq_file *m, struct super_block *sb)
                if (sb->s_flags & fs_infop->flag)
                        seq_puts(m, fs_infop->str);
        }
+
+       return security_sb_show_options(m, sb);
 }
 
 static void show_mnt_opts(struct seq_file *m, struct vfsmount *mnt)
@@ -807,11 +808,14 @@ static int show_vfsmnt(struct seq_file *m, void *v)
        seq_putc(m, ' ');
        show_type(m, mnt->mnt_sb);
        seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
-       show_sb_opts(m, mnt->mnt_sb);
+       err = show_sb_opts(m, mnt->mnt_sb);
+       if (err)
+               goto out;
        show_mnt_opts(m, mnt);
        if (mnt->mnt_sb->s_op->show_options)
                err = mnt->mnt_sb->s_op->show_options(m, mnt);
        seq_puts(m, " 0 0\n");
+out:
        return err;
 }
 
@@ -866,10 +870,13 @@ static int show_mountinfo(struct seq_file *m, void *v)
        seq_putc(m, ' ');
        mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
        seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
-       show_sb_opts(m, sb);
+       err = show_sb_opts(m, sb);
+       if (err)
+               goto out;
        if (sb->s_op->show_options)
                err = sb->s_op->show_options(m, mnt);
        seq_putc(m, '\n');
+out:
        return err;
 }
 
@@ -1084,7 +1091,6 @@ static int do_umount(struct vfsmount *mnt, int flags)
                down_write(&sb->s_umount);
                if (!(sb->s_flags & MS_RDONLY)) {
                        lock_kernel();
-                       DQUOT_OFF(sb);
                        retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
                        unlock_kernel();
                }
@@ -1178,17 +1184,6 @@ static int mount_is_safe(struct nameidata *nd)
 #endif
 }
 
-static int lives_below_in_same_fs(struct dentry *d, struct dentry *dentry)
-{
-       while (1) {
-               if (d == dentry)
-                       return 1;
-               if (d == NULL || d == d->d_parent)
-                       return 0;
-               d = d->d_parent;
-       }
-}
-
 struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
                                        int flag)
 {
@@ -1205,7 +1200,7 @@ struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
 
        p = mnt;
        list_for_each_entry(r, &mnt->mnt_mounts, mnt_child) {
-               if (!lives_below_in_same_fs(r->mnt_mountpoint, dentry))
+               if (!is_subdir(r->mnt_mountpoint, dentry))
                        continue;
 
                for (s = r; s; s = next_mnt(s, r)) {
@@ -2342,10 +2337,10 @@ void __init mnt_init(void)
        err = sysfs_init();
        if (err)
                printk(KERN_WARNING "%s: sysfs_init error: %d\n",
-                       __FUNCTION__, err);
+                       __func__, err);
        fs_kobj = kobject_create_and_add("fs", NULL);
        if (!fs_kobj)
-               printk(KERN_WARNING "%s: kobj create error\n", __FUNCTION__);
+               printk(KERN_WARNING "%s: kobj create error\n", __func__);
        init_rootfs();
        init_mount_tree();
 }