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author | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-03-27 19:23:53 +0300 |
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committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-03-27 19:23:53 +0300 |
commit | 0e2f54f88b8b9bbdb3a73b6e67cffb402187c73f (patch) | |
tree | 6032a118853108b3659c1f6d5dd5eea549e9d077 /Documentation/core-api/memory-allocation.rst | |
parent | 96fd2c6633b0484b030eb15e646ad50426c41e6a (diff) | |
parent | 0bec6219e5a0cf2dd17716949a7592807e10f3d7 (diff) | |
download | linux-0e2f54f88b8b9bbdb3a73b6e67cffb402187c73f.tar.xz |
Merge drm/drm-next into drm-intel-next-queued
This is needed to get the fourcc code merged without conflicts.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'Documentation/core-api/memory-allocation.rst')
-rw-r--r-- | Documentation/core-api/memory-allocation.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/core-api/memory-allocation.rst b/Documentation/core-api/memory-allocation.rst index 8954a88ff5b7..7744aa3bf2e0 100644 --- a/Documentation/core-api/memory-allocation.rst +++ b/Documentation/core-api/memory-allocation.rst @@ -1,4 +1,4 @@ -.. _memory-allocation: +.. _memory_allocation: ======================= Memory Allocation Guide @@ -113,9 +113,11 @@ see :c:func:`kvmalloc_node` reference documentation. Note that If you need to allocate many identical objects you can use the slab cache allocator. The cache should be set up with -:c:func:`kmem_cache_create` before it can be used. Afterwards -:c:func:`kmem_cache_alloc` and its convenience wrappers can allocate -memory from that cache. +:c:func:`kmem_cache_create` or :c:func:`kmem_cache_create_usercopy` +before it can be used. The second function should be used if a part of +the cache might be copied to the userspace. After the cache is +created :c:func:`kmem_cache_alloc` and its convenience wrappers can +allocate memory from that cache. When the allocated memory is no longer needed it must be freed. You can use :c:func:`kvfree` for the memory allocated with `kmalloc`, |