Le mardi 30 mars 2010 à 11:31 -0700, Eric W. Biederman a écrit : > From: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> > > Add all of the necessary bioler plate to support > multiple superblocks in sysfs. > > Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> > --- > fs/sysfs/mount.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++- > fs/sysfs/sysfs.h | 3 ++ > 2 files changed, 59 insertions(+), 2 deletions(-) > > diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c > index 0cb1088..6a433ac 100644 > --- a/fs/sysfs/mount.c > +++ b/fs/sysfs/mount.c > @@ -71,16 +71,70 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent) > return 0; > } > > +static int sysfs_test_super(struct super_block *sb, void *data) > +{ > + struct sysfs_super_info *sb_info = sysfs_info(sb); > + struct sysfs_super_info *info = data; > + int found = 1; > + return found; > +} > + > +static int sysfs_set_super(struct super_block *sb, void *data) > +{ > + int error; > + error = set_anon_super(sb, data); > + if (!error) > + sb->s_fs_info = data; > + return error; > +} > + > static int sysfs_get_sb(struct file_system_type *fs_type, > int flags, const char *dev_name, void *data, struct vfsmount *mnt) > { > - return get_sb_single(fs_type, flags, data, sysfs_fill_super, mnt); > + struct sysfs_super_info *info; > + struct super_block *sb; > + int error; > + > + error = -ENOMEM; > + info = kzalloc(sizeof(*info), GFP_KERNEL); > + if (!info) > + goto out; > + sb = sget(fs_type, sysfs_test_super, sysfs_set_super, info); > + if (IS_ERR(sb) || sb->s_fs_info != info) > + kfree(info); > + if (IS_ERR(sb)) { > + kfree(info); double kfree(info) ? > + error = PTR_ERR(sb); > + goto out; > + } > + -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html