diff options
Diffstat (limited to 'Documentation/core-api')
-rw-r--r-- | Documentation/core-api/kernel-api.rst | 4 | ||||
-rw-r--r-- | Documentation/core-api/memory-allocation.rst | 10 | ||||
-rw-r--r-- | Documentation/core-api/mm-api.rst | 2 | ||||
-rw-r--r-- | Documentation/core-api/printk-formats.rst | 8 |
4 files changed, 15 insertions, 9 deletions
diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index cdd24943fbcc..71f5d2fe39b7 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -356,10 +356,6 @@ Read-Copy Update (RCU) .. kernel-doc:: include/linux/rcupdate.h -.. kernel-doc:: include/linux/rcupdate_wait.h - -.. kernel-doc:: include/linux/rcutree.h - .. kernel-doc:: kernel/rcu/tree.c .. kernel-doc:: kernel/rcu/tree_plugin.h 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`, diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst index aa8e54b85221..128e8a721c1e 100644 --- a/Documentation/core-api/mm-api.rst +++ b/Documentation/core-api/mm-api.rst @@ -35,7 +35,7 @@ users will want to use a plain ``GFP_KERNEL``. :doc: Reclaim modifiers .. kernel-doc:: include/linux/gfp.h - :doc: Common combinations + :doc: Useful GFP flag combinations The Slab Cache ============== diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst index a7fae4538946..c37ec7cd9c06 100644 --- a/Documentation/core-api/printk-formats.rst +++ b/Documentation/core-api/printk-formats.rst @@ -13,6 +13,10 @@ Integer types If variable is of Type, use printk format specifier: ------------------------------------------------------------ + char %hhd or %hhx + unsigned char %hhu or %hhx + short int %hd or %hx + unsigned short int %hu or %hx int %d or %x unsigned int %u or %x long %ld or %lx @@ -21,6 +25,10 @@ Integer types unsigned long long %llu or %llx size_t %zu or %zx ssize_t %zd or %zx + s8 %hhd or %hhx + u8 %hhu or %hhx + s16 %hd or %hx + u16 %hu or %hx s32 %d or %x u32 %u or %x s64 %lld or %llx |