[PATCH] eCryptfs: convert kmap() to kmap_atomic()

Replace kmap() with kmap_atomic().  Reduce the amount of time that mappings
are held.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Trevor Highland <tshighla@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc fs/ecryptfs/crypto.c
Simple merge

diff --cc fs/ecryptfs/ecryptfs_kernel.h
Simple merge

diff --cc fs/ecryptfs/mmap.c
Simple merge