| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.13 010/172] ext4: fix error paths in swap_inode_boot_loader() | Date | Tue, 4 Mar 2014 12:01:34 -0800 |
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3.13-stable review patch. If anyone has any objections, please let me know.
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From: Zheng Liu <wenqing.lz@taobao.com>
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 <ahmedtamrawi@gmail.com> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Dr. Tilmann Bubeck <t.bubeck@reinform.de> Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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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