tree 4b6a9e060ba1d33f3573f0ea4b04f950e8027c79
parent 3aeb86ea4cd15f728147a3bd5469a205ada8c767
author Tyler Hicks <tyhicks@linux.vnet.ibm.com> 1303495680 -0500
committer Tyler Hicks <tyhicks@linux.vnet.ibm.com> 1303775386 -0500

eCryptfs: Flush dirty pages in setattr

After 57db4e8d73ef2b5e94a3f412108dff2576670a8a changed eCryptfs to
write-back caching, eCryptfs page writeback updates the lower inode
times due to the use of vfs_write() on the lower file.

To preserve inode metadata changes, such as 'cp -p' does with
utimensat(), we need to flush all dirty pages early in
ecryptfs_setattr() so that the user-updated lower inode metadata isn't
clobbered later in writeback.

https://bugzilla.kernel.org/show_bug.cgi?id=33372

Reported-by: Rocko <rockorequin@hotmail.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>