On Sat, Jan 30, 2021 at 11:06:40AM -0600, Tyler Hicks wrote:
> Hey Jeffrey and Dan - thanks for the patch! Unfortunately, I think this
> would allow the eCryptfs inode's nlink count to get out of sync with the
> lower inode's nlink count in the case of direct manipulation to the
> lower filesystem.
On 2020-12-18 13:07:30, Jeffrey Mitchell wrote:
> On asynchronous base filesystems like NFS, eCryptFS leaves inodes for
> deleted files in the cache until unmounting. Change call in
> ecryptfs_do_unlink() from set_nlink() to drop_nlink() in order to reliably
> evict inodes from the cache even on to
Steps to reproduce issue:
Mount nfs
Inside the nfs mount, create back and front directories for ecryptfs
Use ecryptfs to mount one directory onto the other
Create a few files inside the ecryptfs mount
Set ftrace to monitor ecryptfs_do_unlink() and ecryptfs_evict_inode()
Delete files
Unmount ecryptf
On asynchronous base filesystems like NFS, eCryptFS leaves inodes for
deleted files in the cache until unmounting. Change call in
ecryptfs_do_unlink() from set_nlink() to drop_nlink() in order to reliably
evict inodes from the cache even on top of NFS.
Signed-off-by: Dan Robertson
Signed-off-by:
Steps to reproduce issue:
Mount nfs
Inside the nfs mount, create back and front directories for ecryptfs
Use ecryptfs to mount one directory onto the other
Create a few files inside the ecryptfs mount
Set ftrace to monitor ecryptfs_do_unlink() and ecryptfs_evict_inode()
Delete files
Unmount ecryptf
On asynchronous base filesystems like NFS, eCryptFS leaves inodes for
deleted files in the cache until unmounting. Change call in
ecryptfs_do_unlink() from set_nlink() to drop_nlink() in order to reliably
evict inodes from the cache even on top of NFS.
Signed-off-by: Dan Robertson
Signed-off-by:
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