exfat: serialize truncate against in-flight DIO

exfat_setattr() did not call inode_dio_wait() before performing a size
change, leaving a window where a concurrent in-flight DIO write could be
operating on clusters that the truncate is about to free.

Add inode_dio_wait() before the truncate_setsize()/exfat_truncate()
sequence so that any in-flight DIO completes before cluster freeing
begins.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

0 files changed, 0 insertions, 0 deletions