From 72651cac884b1e285fa8e8314b10e9f1b8458802 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 5 Dec 2012 14:40:14 +0100 Subject: [PATCH] fs: Fix imbalance in freeze protection in mark_files_ro() File descriptors (even those for writing) do not hold freeze protection. Thus mark_files_ro() must call __mnt_drop_write() to only drop protection against remount read-only. Calling mnt_drop_write_file() as we do now results in: [ BUG: bad unlock balance detected! ] 3.7.0-rc6-00028-g88e75b6 #101 Not tainted ------------------------------------- kworker/1:2/79 is trying to release lock (sb_writers) at: [] mnt_drop_write+0x24/0x30 but there are no more locks to release! Reported-by: Zdenek Kabelac CC: stable@vger.kernel.org Signed-off-by: Jan Kara Signed-off-by: Al Viro --- Reading git-format-patch failed