linux.git/crypto/cryptd.c, branch v2.6.33

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2009-12-14T17:58:24+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
  m68k: rename global variable vmalloc_end to m68k_vmalloc_end
  percpu: add missing per_cpu_ptr_to_phys() definition for UP
  percpu: Fix kdump failure if booted with percpu_alloc=page
  percpu: make misc percpu symbols unique
  percpu: make percpu symbols in ia64 unique
  percpu: make percpu symbols in powerpc unique
  percpu: make percpu symbols in x86 unique
  percpu: make percpu symbols in xen unique
  percpu: make percpu symbols in cpufreq unique
  percpu: make percpu symbols in oprofile unique
  percpu: make percpu symbols in tracer unique
  percpu: make percpu symbols under kernel/ and mm/ unique
  percpu: remove some sparse warnings
  percpu: make alloc_percpu() handle array types
  vmalloc: fix use of non-existent percpu variable in put_cpu_var()
  this_cpu: Use this_cpu_xx in trace_functions_graph.c
  this_cpu: Use this_cpu_xx for ftrace
  this_cpu: Use this_cpu_xx in nmi handling
  this_cpu: Use this_cpu operations in RCU
  this_cpu: Use this_cpu ops for VM statistics
  ...

Fix up trivial (famous last words) global per-cpu naming conflicts in
	arch/x86/kvm/svm.c
	mm/slab.c

crypto: ghash - Add PCLMULQDQ accelerated implementation

2009-10-19T02:53:06+00:00

PCLMULQDQ is used to accelerate the most time-consuming part of GHASH,
carry-less multiplication. More information about PCLMULQDQ can be
found at:

http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/

Because PCLMULQDQ changes XMM state, its usage must be enclosed with
kernel_fpu_begin/end, which can be used only in process context, the
acceleration is implemented as crypto_ahash. That is, request in soft
IRQ context will be defered to the cryptd kernel thread.

Signed-off-by: Huang Ying 
Signed-off-by: Herbert Xu

this_cpu: Use this_cpu_ptr in crypto subsystem

2009-10-03T10:48:23+00:00

Just a slight optimization that removes one array lookup.
The processor number is needed for other things as well so the
get/put_cpu cannot be removed.

Acked-by: Tejun Heo 
Cc: Huang Ying 
Signed-off-by: Christoph Lameter 
Signed-off-by: Tejun Heo

crypto: cryptd - Add support to access underlaying shash

2009-08-06T05:35:20+00:00

cryptd_alloc_ahash() will allocate a cryptd-ed ahash for specified
algorithm name. The new allocated one is guaranteed to be cryptd-ed
ahash, so the shash underlying can be gotten via cryptd_ahash_child().

Signed-off-by: Huang Ying 
Signed-off-by: Herbert Xu

crypto: cryptd - Add finup/export/import for hash

2009-07-22T03:10:22+00:00

This patch adds the finup/export/import functions to the cryptd
ahash implementation.  We simply invoke the underlying shash
operations.

Signed-off-by: Herbert Xu

crypto: cryptd - Fix uninitialized return value

2009-07-15T08:51:04+00:00

If cryptd_alloc_instance() fails, the return value is uninitialized.
This patch fixes this by setting the return value.

Signed-off-by: Steffen Klassert 
Signed-off-by: Herbert Xu

crypto: cryptd - Switch to new style ahash

2009-07-14T11:11:32+00:00

This patch changes cryptd to use the new style ahash type.  In
particular, the instance is enlarged to encapsulate the new
ahash_alg structure.

Signed-off-by: Herbert Xu

crypto: cryptd - Switch to template create API

2009-07-14T10:45:45+00:00

This patch changes cryptd to use the template->create function
instead of alloc in anticipation for the switch to new style
ahash algorithms.

Signed-off-by: Herbert Xu

crypto: cryptd - Use crypto_ahash_set_reqsize

2009-07-14T04:58:12+00:00

This patch makes cryptd use crypto_ahash_set_reqsize to avoid
accessing crypto_ahash directly.

Signed-off-by: Herbert Xu

crypto: cryptd - Use shash algorithms

2009-07-14T04:58:10+00:00

This patch changes cryptd to use shash algorithms instead of the
legacy hash interface.

Signed-off-by: Herbert Xu