From 09e0834fb0ce1ea2a63885177015bd5d7d2bc22d Mon Sep 17 00:00:00 2001 From: Akira Fujita Date: Thu, 20 Oct 2011 18:56:10 -0400 Subject: ext4: fix deadlock in ext4_ordered_write_end() If ext4_jbd2_file_inode() in ext4_ordered_write_end() fails for some reasons, this function returns to caller without unlocking the page. It leads to the deadlock, and the patch fixes this issue. Signed-off-by: Akira Fujita Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/ext4') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 081bb25a9ad3..ecb572591924 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -959,7 +959,11 @@ static int ext4_ordered_write_end(struct file *file, ext4_orphan_add(handle, inode); if (ret2 < 0) ret = ret2; + } else { + unlock_page(page); + page_cache_release(page); } + ret2 = ext4_journal_stop(handle); if (!ret) ret = ret2; -- cgit v1.2.3-55-g7522