ext3: Remove the obsolete broken EXT3_IOC32_WAIT_FOR_READONLY.

There are no user of EXT3_IOC32_WAIT_FOR_READONLY and also it is
broken. No one set the set_ro_timer, no one wake up us and our
state is set to TASK_INTERRUPTIBLE not RUNNING. So remove it.

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/linux/ext3_fs_sb.h b/include/linux/ext3_fs_sb.h
index 258088ab3c6..64365252f1b 100644
--- a/include/linux/ext3_fs_sb.h
+++ b/include/linux/ext3_fs_sb.h
@@ -76,10 +76,6 @@ struct ext3_sb_info {
         struct mutex s_resize_lock;
         unsigned long s_commit_interval;
         struct block_device *journal_bdev;
-#ifdef CONFIG_JBD_DEBUG
-        struct timer_list turn_ro_timer;        /* For turning read-only (crash simulation) */
-        wait_queue_head_t ro_wait_queue;        /* For people waiting for the fs to go read-only */
-#endif
 #ifdef CONFIG_QUOTA
         char *s_qf_names[MAXQUOTAS];            /* Names of quota files with journalled quota */
         int s_jquota_fmt;                       /* Format of quota to use */