3.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zheng Liu <[email protected]>

commit 30d29b119ef01776e0a301444ab24defe8d8bef3 upstream.

In swap_inode_boot_loader() we forgot to release ->i_mutex and resume
unlocked dio for inode and inode_bl if there is an error starting the
journal handle.  This commit fixes this issue.

Reported-by: Ahmed Tamrawi <[email protected]>
Cc: Andreas Dilger <[email protected]>
Cc: Dr. Tilmann Bubeck <[email protected]>
Signed-off-by: Zheng Liu <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 fs/ext4/ioctl.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -144,7 +144,7 @@ static long swap_inode_boot_loader(struc
        handle = ext4_journal_start(inode_bl, EXT4_HT_MOVE_EXTENTS, 2);
        if (IS_ERR(handle)) {
                err = -EINVAL;
-               goto swap_boot_out;
+               goto journal_err_out;
        }
 
        /* Protect extent tree against block allocations via delalloc */
@@ -202,6 +202,7 @@ static long swap_inode_boot_loader(struc
 
        ext4_double_up_write_data_sem(inode, inode_bl);
 
+journal_err_out:
        ext4_inode_resume_unlocked_dio(inode);
        ext4_inode_resume_unlocked_dio(inode_bl);
 


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