From 8d08dab786ad5cc2aca2bf870de370144b78c85a Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Tue, 17 May 2011 00:50:33 -0500 Subject: [PATCH] eCryptfs: Allow 2 scatterlist entries for encrypted filenames The buffers allocated while encrypting and decrypting long filenames can sometimes straddle two pages. In this situation, virt_to_scatterlist() will return -ENOMEM, causing the operation to fail and the user will get scary error messages in their logs: kernel: ecryptfs_write_tag_70_packet: Internal error whilst attempting to convert filename memory to scatterlist; expected rc = 1; got rc = [-12]. block_aligned_filename_size = [272] kernel: ecryptfs_encrypt_filename: Error attempting to generate tag 70 packet; rc = [-12] kernel: ecryptfs_encrypt_and_encode_filename: Error attempting to encrypt filename; rc = [-12] kernel: ecryptfs_lookup: Error attempting to encrypt and encode filename; rc = [-12] The solution is to allow up to 2 scatterlist entries to be used. Signed-off-by: Tyler Hicks Cc: --- Reading git-format-patch failed