diff options
| author |   Toshi Kani <toshi.kani@hpe.com> | 2016-03-09 12:47:04 -0700 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2016-03-09 11:07:20 -0800 |
| commit | ff3cc952d3f009e6c376cc40651b87187ce364a6 (patch) | |
| tree | c0b685a62ea8908bfdab98dc372bfe75fd0f291e /include/linux/ioport.h | |
| parent | resource: Change __request_region to inherit from immediate parent (diff) | |
| download | linux-dev-ff3cc952d3f009e6c376cc40651b87187ce364a6.tar.xz linux-dev-ff3cc952d3f009e6c376cc40651b87187ce364a6.zip | |
resource: Add remove_resource interface
insert_resource() and insert_resource_conflict() are called
by resource producers to insert a new resource. When there
is any conflict, they move conflicting resources down to the
children of the new resource. There is no destructor of these
interfaces, however.
Add remove_resource(), which removes a resource previously
inserted by insert_resource() or insert_resource_conflict(),
and moves the children up to where they were before.
__release_resource() is changed to have @release_child, so
that this function can be used for remove_resource() as well.
Also add comments to clarify that these functions are intended
for producers of resources to avoid any confusion with
request/release_resource() for consumers.
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/ioport.h')
| -rw-r--r-- | include/linux/ioport.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h index afb45597fb5f..8017b8bf45fa 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -174,6 +174,7 @@ extern void reserve_region_with_split(struct resource *root, extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new); extern int insert_resource(struct resource *parent, struct resource *new); extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new); +extern int remove_resource(struct resource *old); extern void arch_remove_reservations(struct resource *avail); extern int allocate_resource(struct resource *root, struct resource *new, resource_size_t size, resource_size_t min, |