When files are encrypted in Lustre using fscrypt, they should
normally not be accessible to users without the proper encyrption
key. However, if a user has then encryption key loaded when they
read a file, it may be decrypted in memory and saved to the PCC
backend in unencrypted form.
Due to the above reason, we just disable PCC caching for encrypted
files.
DDN-bug-id: EX-3571
Signed-off-by: Qian Yingjin <qian@ddn.com>
Change-Id: I6c363dcad7a6bc8520350c0295f6e221bec3abb0
Reviewed-on: https://review.whamcloud.com/45545
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
if (ioc->lil_count != 1)
RETURN(-EINVAL);
+ if (IS_ENCRYPTED(inode))
+ RETURN(-EOPNOTSUPP);
+
arg += sizeof(*ioc);
if (copy_from_user(¶m.pa_archive_id, (void __user *)arg,
sizeof(__u32)))
if (!S_ISREG(inode->i_mode))
RETURN(0);
+ if (IS_ENCRYPTED(inode))
+ RETURN(0);
+
pcc_inode_lock(inode);
pcci = ll_i2pcci(inode);