diff options
| author | Jan Kara <jack@suse.cz> | 2012-02-20 17:49:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-02 09:53:04 -0700 |
| commit | 712f04ff3aea5f7cc284df68f93b1eacb5cb0fa2 (patch) | |
| tree | bca0c6fab9d87a47488acee0e20246ee361a7062 /kernel/rtmutex-debug.c | |
| parent | 83e41946441048f5d30f2022dda519b4b58c9ad8 (diff) | |
udf: Fix deadlock in udf_release_file()
commit a0391a3ae91d301c0e59368531a4de5f0b122bcf upstream.
udf_release_file() can be called from munmap() path with mmap_sem held. Thus
we cannot take i_mutex there because that ranks above mmap_sem. Luckily,
i_mutex is not needed in udf_release_file() anymore since protection by
i_data_sem is enough to protect from races with write and truncate.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/rtmutex-debug.c')
0 files changed, 0 insertions, 0 deletions