eCryptfs: Flush file in vma close
authorTyler Hicks <tyhicks@canonical.com>
Mon, 21 Nov 2011 23:31:29 +0000 (17:31 -0600)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 9 Dec 2011 16:54:04 +0000 (08:54 -0800)
commit19c8acbc4a4d444d72d256a7541b040cebddc78b
tree2222ef02c49bfe41dcbb59b88c31120a23d38f92
parentd1d274cd1ce2eb979c66233a36a7a92abfc0f18f
eCryptfs: Flush file in vma close

commit 32001d6fe9ac6b0423e674a3093aa56740849f3b upstream.

Dirty pages weren't being written back when an mmap'ed eCryptfs file was
closed before the mapping was unmapped. Since f_ops->flush() is not
called by the munmap() path, the lower file was simply being released.
This patch flushes the eCryptfs file in the vm_ops->close() path.

https://launchpad.net/bugs/870326

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/ecryptfs/file.c