From: "Mike Rapoport (Microsoft)"
module_writable_address() is unused and can be removed.
Signed-off-by: Mike Rapoport (Microsoft)
---
include/linux/module.h | 10 --
1 file changed, 10 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index e9fc9d1fa476..22209
From: "Mike Rapoport (Microsoft)"
Using a writable copy for ROX memory is cumbersome and error prone.
Add API that allow temporarily remapping of ranges in the ROX cache as
writable and then restoring their read-only-execute permissions.
This API will be later used in modules code and will all
From: "Mike Rapoport (Microsoft)"
The module code does not create a writable copy of the executable memory
anymore so there is no need to handle it in module relocation and
alternatives patching.
This reverts commit 9bfc4824fd4836c16bb44f922bfaffba5da3e4f3.
Signed-off-by: Mike Rapoport (Microso
From: "Mike Rapoport (Microsoft)"
Instead of using writable copy for module text sections, temporarily remap
the memory allocated from execmem's ROX cache as writable and restore its
ROX permissions after the module is formed.
This will allow removing nasty games with writable copy in alternativ
From: "Mike Rapoport (Microsoft)"
In order to use execmem's API for temporal remapping of the memory
allocated from ROX cache as writable, there is a need to distinguish
between the state when the module is being formed and the state when it is
deconstructed and freed so that when module_memory_f
From: "Kirill A. Shutemov"
Change of attributes of the pages may lead to fragmentation of direct
mapping over time and performance degradation as result.
With current code it's one way road: kernel tries to avoid splitting
large pages, but it doesn't restore them back even if page attributes
got
From: "Mike Rapoport (Microsoft)"
The CPA_ARRAY test always uses len[1] as numpages argument to
change_page_attr_set() although the addresses array is different each
iteration of the test loop.
Replace len[1] with len[i] to have numpages matching the addresses array.
Fixes: ecc729f1f471 ("x86/m
From: "Mike Rapoport (Microsoft)"
There is a 'struct cpa_data *data' parameter in cpa_flush() that is
assigned to a local 'struct cpa_data *cpa' variable.
Rename the parameter from 'data' to 'cpa' and drop declaration of the
local 'cpa' variable.
Signed-off-by: Mike Rapoport (Microsoft)
---
a
From: "Mike Rapoport (Microsoft)"
Hi,
Following Peter's comments [1] these patches rework handling of ROX caches
for module text allocations.
Instead of using a writable copy that really complicates alternatives
patching, temporarily remap parts of a large ROX page as RW for the time of
module
