Tyler Hicks e06b5bf516 eCryptfs: Allow 2 scatterlist entries for encrypted filenames ... commit 8d08dab786 upstream. 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 <tyhicks@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>		2011-08-01 13:54:53 -07:00
..
crypto.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6	2010-04-19 14:20:32 -07:00
debug.c	eCryptfs: update comment and debug statement	2007-10-16 09:43:11 -07:00
dentry.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ecryptfs_kernel.h	switch ecryptfs_write() to struct inode *, kill on-stack fake files	2010-05-21 18:31:28 -04:00
file.c	fs/ecryptfs/file.c: introduce missing free	2010-08-13 13:30:52 -07:00
inode.c	eCryptfs: Copy up lower inode attrs in getattr	2011-03-31 11:58:09 -07:00
Kconfig	eCryptfs: Remove Kconfig NET dependency and select MD5	2009-10-08 11:31:36 -05:00
keystore.c	eCryptfs: Allow 2 scatterlist entries for encrypted filenames	2011-08-01 13:54:53 -07:00
kthread.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
main.c	Ban ecryptfs over ecryptfs	2010-05-21 18:31:27 -04:00
Makefile	eCryptfs: remove netlink transport	2008-10-16 11:21:39 -07:00
messaging.c	ecryptfs: Bugfix for error related to ecryptfs_hash_buckets	2010-07-28 19:59:24 -07:00
miscdev.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mmap.c	eCryptfs: Unlock page in write_begin error path	2011-03-31 11:58:50 -07:00
read_write.c	switch ecryptfs_write() to struct inode *, kill on-stack fake files	2010-05-21 18:31:28 -04:00
super.c	fix a couple of ecryptfs leaks	2010-05-21 18:31:13 -04:00