diff options
author | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2009-10-14 17:18:27 -0400 |
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committer | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2010-01-19 23:32:07 -0500 |
commit | 5f3ef64f4da1c587cdcfaaac72311225b7df094c (patch) | |
tree | 0bdf086980df60d73bc650cdc520b59029faaa5a /Documentation/PCI | |
parent | 24bc7347da73a9ed3383056c3d0f28c0e361621e (diff) |
eCryptfs: Use notify_change for truncating lower inodes
When truncating inodes in the lower filesystem, eCryptfs directly
invoked vmtruncate(). As Christoph Hellwig pointed out, vmtruncate() is
a filesystem helper function, but filesystems may need to do more than
just a call to vmtruncate().
This patch moves the lower inode truncation out of ecryptfs_truncate()
and renames the function to truncate_upper(). truncate_upper() updates
an iattr for the lower inode to indicate if the lower inode needs to be
truncated upon return. ecryptfs_setattr() then calls notify_change(),
using the updated iattr for the lower inode, to complete the truncation.
For eCryptfs functions needing to truncate, ecryptfs_truncate() is
reintroduced as a simple way to truncate the upper inode to a specified
size and then truncate the lower inode accordingly.
https://bugs.launchpad.net/bugs/451368
Reported-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dustin Kirkland <kirkland@canonical.com>
Cc: ecryptfs-devel@lists.launchpad.net
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/PCI')
0 files changed, 0 insertions, 0 deletions