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authorTao Ma <boyu.mt@taobao.com>2011-10-07 23:21:18 +0800
committerJan Kara <jack@suse.cz>2011-10-10 18:25:59 +0200
commit40bfa16dac2adcded9e2eda58246cc3700d97de4 (patch)
treec2af949d3cfe42f0dfc935e8d6901e5114d7e2fd /fs/ext3
parentbc1123239ab950798779ca4e23228afb5443eb5d (diff)
downloadlinux-40bfa16dac2adcded9e2eda58246cc3700d97de4.tar.gz
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>
Diffstat (limited to 'fs/ext3')
-rw-r--r--fs/ext3/ioctl.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index c7f43944f160..ba1b54e23cae 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -150,30 +150,6 @@ setversion_out:
 		mnt_drop_write(filp->f_path.mnt);
 		return err;
 	}
-#ifdef CONFIG_JBD_DEBUG
-	case EXT3_IOC_WAIT_FOR_READONLY:
-		/*
-		 * This is racy - by the time we're woken up and running,
-		 * the superblock could be released.  And the module could
-		 * have been unloaded.  So sue me.
-		 *
-		 * Returns 1 if it slept, else zero.
-		 */
-		{
-			struct super_block *sb = inode->i_sb;
-			DECLARE_WAITQUEUE(wait, current);
-			int ret = 0;
-
-			set_current_state(TASK_INTERRUPTIBLE);
-			add_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
-			if (timer_pending(&EXT3_SB(sb)->turn_ro_timer)) {
-				schedule();
-				ret = 1;
-			}
-			remove_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
-			return ret;
-		}
-#endif
 	case EXT3_IOC_GETRSVSZ:
 		if (test_opt(inode->i_sb, RESERVATION)
 			&& S_ISREG(inode->i_mode)