kernel/linux.git/drivers/md/dm-vdo/memory-alloc.h, branch linux-7.1.y

dm vdo: remove redundant TYPE argument from vdo_allocate macro

2026-03-02T16:03:28+00:00

We can infer the type needed from the supplied pointer argument. A couple invocation sites needed fixing to supply the proper type of pointer. Use overflow.h's size_mul, and we can remove the __vdo_do_allocation wrapper which did the same overflow check. Signed-off-by: Ken Raeburn Signed-off-by: Mikulas Patocka

dm vdo: update vdo_allocate_extended to take a field name, no types

2026-03-02T16:03:18+00:00

All of VDO's "extended" allocations use a flexible array field at the end of the allocated structure. We can infer the struct type from the supplied pointer. Replacing the array field type with the field name lets us use struct_size from overflow.h to compute the size instead of the local __vdo_do_allocation version. One allocation of bio structures doesn't conform to this pattern, since the removal of bi_inline_vecs; directly compute the total size for that case. Signed-off-by: Ken Raeburn Signed-off-by: Mikulas Patocka

dm vdo memory-alloc: return VDO_SUCCESS on success

2024-03-04T20:07:56+00:00

Signed-off-by: Mike Snitzer Signed-off-by: Matthew Sakai

dm vdo memory-alloc: rename vdo_do_allocation to __vdo_do_allocation

2024-03-04T20:07:56+00:00

__vdo_do_allocation shouldn't be used outside of memory-alloc.h, so add hidden prefix. Also, tabify the vdo_allocate_extended macro. Signed-off-by: Mike Snitzer Signed-off-by: Matthew Sakai

dm vdo memory-alloc: change from uds_ to vdo_ namespace

2024-03-04T20:07:56+00:00

Signed-off-by: Mike Snitzer Signed-off-by: Matthew Sakai

dm vdo: add memory allocation utilities

2024-02-20T18:43:13+00:00

This patch adds standardized allocation macros and memory tracking tools to track and report any allocated memory that is not freed. This makes it easier to ensure that the vdo target does not leak memory. This patch also adds utilities for controlling whether certain threads are allowed to allocate memory, since memory allocation during certain critical code sections can cause the vdo target to deadlock. Co-developed-by: J. corwin Coburn Signed-off-by: J. corwin Coburn Co-developed-by: Michael Sclafani Signed-off-by: Michael Sclafani Co-developed-by: Thomas Jaskiewicz Signed-off-by: Thomas Jaskiewicz Co-developed-by: Ken Raeburn Signed-off-by: Ken Raeburn Signed-off-by: Matthew Sakai Signed-off-by: Mike Snitzer